By Probability , You expect Stella to remove a apple chew from the bag
For apple , Pₐ = 7/21
For lime , Pi = 2/21
What is probability with and example?
Probability is a measure of how likely or likely-possible something is to happen. For instance, there is a 1 in 2 chance of receiving a head when flipping a coin, and there are 2 potential outcomes overall (a head or tail). P(heads) = 12 is what we write.
Out of 21 times that the experiment was performed
A orange chew was selected 12 times
A orange chew was selected 7 times
A lime chew was selected 2 times
then for the orange ones we have a relative frequency (that can be thought as the probability ) of
P₀ = 12/21
For apple , Pₐ = 7/21
For lime , Pi = 2/21
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what is the approximate probability that a shipment will be returned if the true proportion of defective cartridges in the shipment is 0.06
Probability that a shipment will be returned if the true sample proportion of defective cartridges in the shipment is 0.06 is equals to the 99.4457%.
We have A manufacturer of computer printers purchases plastic ink cartridges from a vendor.
Sample size for cartridge sample, n
= 238
Sample proportion of defective cartridges is more than 0.02.
true proportion of defective cartridges in the shipment = 0.06
Population Mean, μ = Σ(x) = 0.06 × 238
= 14.28
standard deviations, σ = sqrt(V(x))
= sqrt(238×0.06×0.94) = 3.74
If there are more than 0.02× 238 = 4.76 defective, the sample will be returned. This probability is 1 subtracted by the pvalue of Z when x = 4.8
Using Z- score in normal distribution formula, z = (x - μ) / σ
=> z = (4.8 - 14.3) / 3.74 = -2.54
=> P(Z < -2. 54) = 0.00554
This means that there is a 1 - 0.00554
= 0.994457376556917.
Hence, required probability is 99.4457%.
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Complete question:
A manufacturer of computer printers purchases plastic ink cartridges from a vendor. When a large shipment is received, a random sample of 230 cartridges is selected, and each cartridge is inspected. If the sample proportion of defective cartridges is more than 0.02, the entire shipment is returned to the vendor. (a) What is the approximate probability that a shipment will be returned if the true proportion of defective cartridges in the shipment is 0.06?
pls help me find the answer
The correct inequality that can be used to determine g, the maximum number of gigabytes Rahul can use while staying within his budget is:
95 > 4g + 36
What is an inequality?
Rahul pays a flat cost of $36 per month and $4 per gigabyte. So, his monthly bill can be expressed as:
Bill = 4g + 36
where g is the number of gigabytes used in the month.
We want to find the maximum number of gigabytes Rahul can use while staying within his budget of $95 per month. This means we need to find the value of g that satisfies the inequality:
Bill ≤ 95
Substituting the expression for Bill, we get:
4g + 36 ≤ 95
Subtracting 36 from both sides, we get:
4g ≤ 59
Dividing both sides by 4, we get:
g ≤ 14.75
Since the number of gigabytes used cannot be a fraction, we can conclude that the maximum number of gigabytes Rahul can use while staying within his budget is 14. Therefore, the correct inequality is:
95 > 4g + 36
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Which set of factors can be used to rewrite the expression 12xy2 + 24xy
?
the set of factors that can be used to rewrite the expression is
{12xy, (y + 2)}.
To rewrite the expression 12xy2 + 24xy in factored form, we need to find the greatest common factor (GCF) of the two terms, which is 12xy. We can then factor out this GCF to obtain:
12xy2 + 24xy = 12xy(y + 2)
Therefore, the set of factors that can be used to rewrite the expression is {12xy, (y + 2)}.
To understand why this set of factors is correct, we need to review some key concepts of factoring. When we factor an expression, we are essentially breaking it down into its constituent parts, which are multiplied together to give the original expression. In other words, we are looking for the factors that, when multiplied, give the original expression.
One common method of factoring is to use the distributive property of multiplication, which states that a(b + c) = ab + ac. This means that we can factor out a common factor from two or more terms by distributing it to each term. For example, if we have the expression 3x + 6, we can factor out the GCF of 3 to obtain:
3x + 6 = 3(x + 2)
Another key concept in factoring is the notion of a perfect square trinomial, which is a quadratic expression of the form a2 + 2ab + b2, where a and b are constants. This expression can be factored as (a + b)2. For example, the expression x2 + 4x + 4 is a perfect square trinomial, which can be factored as (x + 2)2.
Returning to the expression 12xy2 + 24xy, we can see that the GCF of the two terms is 12xy, since this is the largest factor that divides evenly into both terms. We can then use the distributive property to factor out this common factor:
12xy2 + 24xy = 12xy(y + 2)
This expression is now in factored form, since it consists of the product of the GCF 12xy and the binomial (y + 2). Note that the binomial (y + 2) is not a perfect square trinomial, since it is not of the form a2 + 2ab + b2. Therefore, we cannot further factor this expression using the methods of perfect square trinomials or other common factoring techniques.
In summary, to rewrite the expression 12xy2 + 24xy in factored form, we need to identify the GCF of the two terms, which is 12xy. We can then factor out this common factor using the distributive property, resulting in the factored form 12xy(y + 2). The set of factors that can be used to rewrite this expression is {12xy, (y + 2)}.
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4^4*5^4 as a single power
For example 6^4
[tex](2^{2})^{4} *5^{4}[/tex][tex](2^{2})^{4} *5^{4}[/tex]The expression is [tex]4^{4} *5^{4}[/tex] is therefore a single power of [tex]2[/tex] and [tex]5[/tex]
[tex]4^{4} *5^{4} =2^{8} *5^{4}[/tex]
Define expressionA grouping of numbers, symbols, and mathematical operations (such as addition, subtraction, multiplication, and division) is called an expression, and it is used to represent an amount or relationship. Expressions as basic as "[tex]2+3x[/tex]" or as complex as "[tex]3x^{2} +5x-2[/tex]" are both permissible.
Additionally, they might include variables, which are representations of unknown values represented by symbols, such as "[tex]y+2x[/tex]." In algebra, calculus, and other areas of mathematics, expressions are commonly used to discuss problems and describe mathematical properties.
Since [tex]4[/tex] and[tex]5[/tex] may be stated as [tex]2^{2}[/tex] and [tex]5^{1}[/tex] so the [tex](2^{2})^{4} *5^{4}[/tex]
[tex]4^{4} *5^{4} =2^{8} *5^{4}[/tex] [tex]=(2^{2})^{4} *5^{4}[/tex]
So the expression for [tex]4^{4} *5^{4} =2^{8} *5^{4}[/tex] as there are single power of [tex]2[/tex] and [tex]5[/tex]
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Radio direction finders are set up at points A and B, which are 2.00 mi. apart on an east-west line. From A it is found that the bearing of the signal from a radio transmitter is N 36° 20’ E, while from B the bearing of the same signal is N 43° 40’ W. Find the distance of the transmitter from B.
We can solve this problem using trigonometry and the properties of triangles.
Let C be the location of the radio transmitter. Then, ACB is a triangle with sides AC = x (the distance from A to the transmitter), BC = y (the distance from B to the transmitter), and AB = 2.00 mi.
We can use the fact that the sum of the interior angles of a triangle is 180 degrees to find the angle at C:
angle ACB = 180 degrees - angle BCA - angle CAB
From the information given in the problem, we know that:
angle CAB = N 36° 20' E
angle BCA = N 43° 40' W
To add or subtract angles, we need to convert them to a common direction. We can do this by adding or subtracting 180 degrees, or by using the fact that 1 degree = 60 minutes (') and 1 minute = 60 seconds ("). Therefore:
angle CAB = 36 degrees + 20/60 degrees = 36.3333... degrees
angle BCA = 180 degrees - (43 degrees + 40/60 degrees) = 136.6666... degrees
Substituting these values into the equation for angle ACB, we get:
angle ACB = 180 degrees - 136.6666... degrees - 36.3333... degrees = 7.0000... degrees
Now, using the law of sines, we can write:
x / sin(angle CAB) = 2.00 mi / sin(angle ACB)
y / sin(angle BCA) = 2.00 mi / sin(angle ACB)
Solving for x and y, we get:
x = 2.00 mi * sin(angle CAB) / sin(angle ACB) = 2.00 mi * sin(36.3333... degrees) / sin(7.0000... degrees) = 9.0734... mi
y = 2.00 mi * sin(angle BCA) / sin(angle ACB) = 2.00 mi * sin(136.6666... degrees) / sin(7.0000... degrees) = 1.1878... mi
Therefore, the distance of the transmitter from B is y = 1.1878... mi (rounded to 4 decimal places).
a franchise manager wants to know if the proportion of customers who wait longer than 5 minutes at the drive through differs from the national value of 12%. she samples a large number of customers and gets a test statistic of -2.01. what is the p-value for this test?
The p-value for the given mentioned test, with the test static of -2.01 is calculated out to be 0.0456.
To calculate the p-value for this test, we first need to determine the appropriate null and alternative hypotheses.
Null hypothesis: The proportion of customers who wait longer than 5 minutes at the drive-through for this franchise is equal to the national value of 12%.
Alternative hypothesis: The proportion of customers who wait longer than 5 minutes at the drive-through for this franchise differs from the national value of 12%.
We can use a two-tailed Z-test to test this hypothesis, with a significance level of alpha = 0.05.
The test statistic is given as -2.01. Since this is a two-tailed test, we need to find the area in both tails of the standard normal distribution that is at least as extreme as the test statistic.
Using a standard normal distribution table or a calculator, we find that the area to the left of -2.01 is 0.0228. The area to the right of 2.01 is also 0.0228. Therefore, the total p-value is the sum of these two probabilities:
p-value = 0.0228 + 0.0228 = 0.0456
Therefore, the p-value for this test is 0.0456. This means that there is a 4.56% chance of obtaining a test statistic as extreme as -2.01, assuming that the null hypothesis is true. Since the p-value is less than the significance level of 0.05, we reject the null hypothesis and conclude that the proportion of customers who wait longer than 5 minutes at the drive-through for this franchise differs from the national value of 12%.
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Seven ex-schoolmates had a gathering. Each one of them shook hands with all others once. How many handshakes were there?
Answer:
21
Step-by-step explanation:
Answer:
7x7=59
Step-by-step explanation:
one shakes 7 hands and there is 7 so 7 time 7
Write -68 as a quotient of integers to show that it is rational.
-68/1 is in the form of rational number.
What is an example of an integer?
A whole number that can be positive, negative, or zero is called an integer. It is not a fraction. Examples of numbers include: -5, 1, 5, 8, 97, and 3,043. The following numbers are examples of non-integers: -1.43, 1 3/4, 3.14,.09, and 5,643. 1. A positive integer and a negative integer cannot be multiplied.
Two positive integers can be multiplied to make a positive number. As an integer is only a collection of numbers, there is no specific formula for it. When doing mathematical operations on numbers, such as addition, subtraction, etc., there are nonetheless specific guidelines that must be followed.
-68 as a quotient of integers
In form of rational number
- 68 = -68/1
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solve [tex]\sqrt{8x=6}[/tex]
[tex] \: \: [/tex]
I believe the equation you meant to write is:
√(8x) = 6
To solve for x, we need to isolate x on one side of the equation. We can do this by squaring both sides:
(√(8x))^2 = 6^2
Simplifying the left side, we get:
8x = 36
Dividing both sides by 8, we get:
x = 4.5
Therefore, the solution to the equation √(8x) = 6 is x = 4.5.
Find the sum of the arithmetic series 12 + 22 + ... + 142.
The sum of the arithmetic series 12 + 22 + ... + 142 is 1078.
What is arithmetic series?The sum of an arithmetic series can be found by multiplying the average of the first and last terms by the number of terms.
According to question:The following formula can be used to get the sum of an arithmetic series:
S = (n/2)(a + l)
where S is the sum of the series, n is the number of terms, a is the first term, and l is the last term.
In this case, we can see that a = 12, d = 10 (the common difference), and l = 142. We can find n by using the formula for the nth term of an arithmetic sequence:
an = a + (n-1)d
Setting this equal to l and solving for n, we get:
142 = 12 + (n-1)10
130 = 10(n-1)
n-1 = 13
n = 14
Now that we know n, we can use the formula for the sum of an arithmetic series to find S:
S = (n/2)(a + l)
S = (14/2)(12 + 142)
S = 7(154)
S = 1078
Therefore, the sum of the arithmetic series 12 + 22 + ... + 142 is 1078.
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People were surveyed about their age and their
favorite way to travel for vacation. The results are
displayed below.
which group has the largest percentage if people who prefer to travel by automobile?
child
teen
adult
senior
The group who has the largest percentage of people who prefer to travel by automobile is given as follows:
Adult.
What is a bar graph?A bar graph, also known as a bar chart, is a type of graph used to represent and compare data. It consists of rectangular bars of equal width and varying heights, where the height of each bar represents the value of the data being graphed.
Automobiles are represented by the green bars, hence we must observe the input for which the green bar has the largest value, which is for adults, hence adults compose the largest percentage of people who prefer to travel by automobile.
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if f(x) = 2x^3+x^2+3 then what is the remainder when f(x) is divided by x-1
The remainder when f(x) is divided by x-1 can be calculated using the division theorem.
The remainder when f(x) is divided by x-1 is 6.
remainder is 6 and divisor is x-1.
What is the division theorem?According to the division theorem, when a polynomial function is divided by another polynomial function, the remainder is equal to the function evaluated at the point where the divisor of the division equation is equal to zero.
In this case, the divisor is x-1, and when x-1 is equal to zero, then x = 1.
Therefore, the remainder when f(x) is divided by x-1 can be calculated by evaluating the function f(x) at x = 1:
[tex]f(1) = 2(1)^3 + (1)^2 + 3[/tex]
= 2 + 1 + 3
= 6
f(1) = 2(1)³ + (1)² + 3 = 6
Therefore, the remainder when f(x) is divided by x-1 is 6.
remainder is 6 and divisor is x-1.
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A regular pentagon ABCDE is shown.
Work out the size of angle x.
The size of the x in the regular pentagon is 36 degrees.
In a regular pentagon, all the sides are congruent and all the angles are congruent. To find the internal angle of a regular pentagon, we can use the formula:
Interior angle = (n-2) x 180 / n
where n is the number of sides of the polygon.
For a regular pentagon, n = 5, so we can substitute this value into the formula:
Interior angle = (5-2) x 180 / 5
Interior angle = 3 x 180 / 5
Interior angle = 540 / 5
Interior angle = 108 degrees
For the value of x, we have
x = 108 degrees/3
Evaluate
x = 36 degrees
Therefore, the value of x in the regular pentagon is 36 degrees.
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Pre-Algebra Writing Question (Image below) Please do everything that it says in the image most people don't do it, it's Part A and B
The sοlutiοn οf the given equatiοn is x=7 and cοrrect.
What is equatiοn?The equal sign ('=') cοnnects twο expressiοns tο fοrm a mathematical statement. There needs tο be at least οne unknοwable variable fοr the result tο be determined. An example οf an equatiοn is 3x - 8 = 16. When this equatiοn is sοlved, the result is x = 8.
Part A:
Given equatiοn is
3x+2(4+6x)= 113----------(1)
Multiplying the bracket term by 2 we get
3x+8+12x=113
Arranging the similar terms in the left hand side we get,
3x+12x+8=113
Subtracting 8 frοm bοth sides we get,
3x+12x+8-8=113-8
⇒(3x+12x)= 105
Adding the similar terms in the left hand side we get,
15x = 105
Dividing bοth sides by x= 105/15=7
Sο sοlving the equatiοn we get x=7.
Part B:
Checking fοr the sοlutiοn:
If the sοlutiοn is right then putting the value οf x in the left hand side οf the given equatiοn will prοduce the right hand side.
putting x=7 in the left hand side οf equatiοn (1),
3x+2(4+6x)
= 3×7+2(4+6×7)
= 21+2(4+42)
= 21+ 2×46
= 21+ 92
= 113
Which is the right hand side οf equatiοn (1).
Sο, the sοlutiοn is cοrrect and checked.
Hence, the sοlutiοn οf the given equatiοn is x=7 and cοrrect.
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The sum of 9 times a number and 6 equals 8 .
what is the equation?
Answer:
9x + 6 = 8
Step-by-step explanation:
"Sum" indicates addition problem. 9 times a number can be represented as 9x (with 9 and 'a number' being x). Then you add 6 because it states 'and 6'. Then, you add equals 8 (=8)
So your equation looks like:
9x + 6 = 8
Can someone help me with this asap? Read the question
All the items are in the correct order as follows:
The letter "O" cannot be used but there are no restrictions on repeating the other letters or numbers.The letters can repeat, but the number cannot repeat.The number can repeat, but the letters cannot repeat.Neither the letters nor the numbers can be repeated.Order from least to greatest:
4, 2, 3, 1
Why did we have the above order?The reason for the order from least to greatest is based on the number of possible combinations in each situation.
Neither the letters nor the numbers can be repeated: In this situation, there are 26 choices for the first letter, 25 choices for the second letter (since the first letter has already been chosen and cannot be repeated), 8 choices for the first digit (since it can be any number from 1 to 9), 7 choices for the second digit (since the first digit has already been chosen and cannot be repeated), and 6 choices for the third digit. Therefore, the total number of possible combinations is 26 x 25 x 8 x 7 x 6 = 1,872,000.
The letters can repeat, but the number cannot repeat: In this situation, there are 26 choices for each letter and 9 choices for each digit. Therefore, the total number of possible combinations is 26 x 26 x 9 x 8 x 7 = 328,968.
The number can repeat, but the letters cannot repeat: In this situation, there are 26 choices for the first letter, 25 choices for the second letter, and 9 choices for each digit. Therefore, the total number of possible combinations is 26 x 25 x 9 x 9 x 9 = 5,565,750.
The letter "O" cannot be used but there are no restrictions on repeating the other letters or numbers: In this situation, there are 25 choices for each letter (since "O" cannot be used) and 9 choices for each digit. Therefore, the total number of possible combinations is 25 x 25 x 9 x 9 x 9 = 15,506,250.
Based on the above calculations, the order from least to greatest is 4, 2, 3, 1.
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The text format of the question in the picture:
Use the arrows to move each item into the correct order. Click the up arrow to move the item up, or click the down mow to move the them down. Once all the items are in the correct order, submit your response.
A bike license consists of 2 letters, using any of the 26 letters in the alphabet, followed by 3 digits from 1 to 9. Calculate the number of possible license plates in each situation, then, order them from least to greatest.
The letters can repeat, but the number cannot repeat
The number can repeat, but the letters cannot repeat
Neither the letters nor the numbers can be repeated
The letter "O" cannot be used but there are no restrictions on repeating the other letters or numbers.
Which expression is equivalent to 5(h+9)?
45h
14h
5h+9
5h+45
Answer:
D) 5h+45
Brainly asked me to put at least 20 words so I'm adding this here.
Answer: The expression equivalent to 5(h+9) is 5h+45, so the answer is option 4.
Please Help with this Problem
x=-4 or -3 is simplified for x²+12/x²-16. This is because when the numerator and denominator are both set equal to zero, the only value of x that will satisfy both equations is x=-4 or -3.
What is Zero Product Property?The Zero Product Property states that if the product of two real numbers is equal to zero, then at least one of the two numbers must be zero.
When solving an equation like x²+12/x²-16 with x=-4, we must use the Zero Product Property, which states that if the product of two factors is equal to zero, then at least one of the two factors must be equal to zero.
In this case, we can set the numerator and denominator of the equation equal to zero and solve:
x²+12=0
x²-16=0
We can solve each of these equations separately by factoring:
x²+12=0
(x+3)(x+4)=0
x+4=0, x+3=0
x=-4 or -3
x²-16=0
(x-4)(x+4)=0
x-4=0
x=4
Therefore, x=-4 or -3 is the correct answer for x²+12/x²-16.
This is because when the numerator and denominator are both set equal to zero, the only value of x that will satisfy both equations is x=-4 or -3.
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Which equation/(s) model inverse variation? A) ху = 40 B) x = 40y c) y = 40 D) ху - 40 = 0 E) x = 40 y F) x = =
Step-by-step explanation:
A xy = 40 is the same as x = 40/y an inverse relationship
D this is the samething as A
Don't know about F...it is truncated
Kimberly is admiring a statue in Newberry Park from 4 meters away. If the distance between the top of the statue to Kimberly's head is 9 meters, how much taller is the statue than Kimberly? If necessary, round to the nearest tenth.
The statue is about 9.8 - 1.5 = 8.3 meters taller than Kimberly.
What is height?
Height typically refers to the measurement of how tall or high something or someone is, usually measured from the ground or a given baseline. It is often used as a physical descriptor of an object or person, and can be measured in various units such as feet, meters, or inches. Height can also be used to describe the vertical extent or distance of an object or structure, such as the height of a building or the height of a mountain.
We can use the Pythagorean theorem to solve the problem.
Let h be the height of the statue. Then, we have:
h² = 4² + 9²
h² = 16 + 81
h² = 97
h ≈ 9.8
Therefore, the statue is about 9.8 - 1.5 = 8.3 meters taller than Kimberly.
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8.1 Notetaking with vocabulary (continued) core concepts
These notes provide a comprehensive guide to solving linear equations using the substitution method, and would be a helpful resource for students studying this topic.
When note-taking with vocabulary and core concepts, follow these steps:
Identify the core concepts: Before taking notes, skim through the material and identify the main ideas or concepts that will be the focus of your notes.
Create headings or sections for each core concept: Organize your notes into sections with headings for each core concept.
This will help you structure your notes and make it easier to find information later on.
Define and highlight key vocabulary: As you take notes, pay attention to important terms or jargon related to the core concepts.
Define these terms in your notes and highlight or underline them for easy reference.
Use bullet points and abbreviations: Keep your notes concise by using bullet points and abbreviations to summarize information.
This will help you understand and remember the material better.
Incorporate examples or explanations: Include examples or explanations that help illustrate the core concepts and vocabulary.
This will help you better understand the material and provide context for the vocabulary.
Review and revise your notes: After taking notes, review and revise them to ensure they accurately reflect the material and incorporate the key vocabulary and core concepts.
This will help reinforce your understanding and improve retention of the information.
By following these steps, you'll create organized and effective notes that incorporate vocabulary and core concepts, making it easier to study and understand the material.
The notes provide several examples with detailed explanations on how to apply the substitution method to solve linear equations.
The examples include equations with coefficients, constants, and variables, and demonstrate how to rearrange the equations to solve for the variables.
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If XY=YZ=95, WX=u+66, and WZ=7u, what is XZ?
The value of XZ is approximately equal to 96.86.
What is inequality ?
An inequality is a mathematical statement that compares two values, expressions, or quantities using inequality symbols such as "<" (less than), ">" (greater than), "<=" (less than or equal to), ">=" (greater than or equal to), or "≠" (not equal to).
We can start by using the transitive property of equality to find that XY = YZ = 95 means that XY + YZ = XZ = 190.
Next, we can use the given information about WX and WZ to write an equation for XZ in terms of u. Since WZ = WX + XZ, we can substitute the given expressions to get:
7u = (u + 66) + XZ
Simplifying and solving for XZ, we have:
7u - u - 66 = XZ
6u - 66 = XZ
Now, we can substitute this expression for XZ into our earlier equation to get:
XZ = 190 = 95 + 95 = XY + YZ = (WX - 66) + (6u - 66)
Simplifying and solving for u, we get:
6u - 66 = 190 - WX
6u = 256 - WX
u = (256 - WX)/6
Substituting this value of u back into the expression for XZ, we get:
XZ = 6u - 66 = 6[(256 - WX)/6] - 66 = 190 - WX
Therefore, XZ = 190 - WX, where WX = u + 66 = (256 - WX)/6 + 66. We can solve for WX by multiplying both sides by 6:
6WX = 256 - WX + 396
7WX = 652
WX = 93.14 (rounded to two decimal places)
Substituting this value into our expression for XZ, we have:
XZ = 190 - WX = 190 - 93.14 = 96.86 (rounded to two decimal places)
Therefore, XZ is approximately equal to 96.86.
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The line plots represent data collected on the travel times to school from two groups of 15 students.
A horizontal line starting at 0, with tick marks every two units up to 28. The line is labeled Minutes Traveled. There is one dot above 4,6,14, and 28. There are two dots above 10, 12, 18, and 22. There are three dots above 16. The graph is titled Bus 47 Travel Times.
A horizontal line starting at 0, with tick marks every two units up to 28. The line is labeled Minutes Traveled. There is one dot above 10,16,20, and 28. There are two dots above 8 and 14. There are three dots above18. There are four dots above 12. The graph is titled Bus 14 Travel Times.
Compare the data and use the correct measure of variability to determine which bus is the most consistent. Explain your answer.
Bus 47, with an IQR of 8
Bus 14, with an IQR of 6
Bus 47, with a range of 8
Bus 14, with a range of 6
Answer:
Answer below :)
Step-by-step explanation:
To determine which bus is the most consistent, we need to look at the measures of variability for each bus. The two measures of variability that are commonly used are the range and the interquartile range (IQR).
The range is the difference between the maximum and minimum values in a dataset. It gives an idea of how spread out the data is but can be affected by extreme values or outliers. The IQR is a better measure of variability as it is not affected by extreme values and is a more robust measure of variability.
Looking at the given data, Bus 47 has a range of 8 and an IQR of 8, while Bus 14 has a range of 6 and an IQR of 6. This indicates that Bus 14 has less variability in its travel times than Bus 47.
Therefore, we can conclude that Bus 14 is the most consistent in terms of travel times.
PLEASE HELP ME
I need the answer for CD and EC.
The length of EC is 8 and the length of CD is 16
How to solve the question?
Pythagoras theorem is a fundamental theorem in mathematics named after the ancient Greek mathematician Pythagoras. It states that in a right-angled triangle, the square of the length of the hypotenuse (the side opposite the right angle) is equal to the sum of the squares of the lengths of the other two sides (the legs).
The theorem can be expressed mathematically as:
c^2 = a^2 + b^2
where c is the length of the hypotenuse and a and b are the lengths of the other two sides. This means that if we know the lengths of any two sides of a right-angled triangle, we can use Pythagoras theorem to find the length of the third side.
The theorem has many practical applications, including in construction, engineering, and physics. It is also a key concept in trigonometry and is used extensively in various fields of science and mathematics.
We can use the Pythagorean theorem to solve this problem. According to the Pythagorean theorem, in a right triangle, the square of the length of the hypotenuse is equal to the sum of the squares of the lengths of the legs. In this case, we know that the length of the hypotenuse (c) is 10 and the length of one leg (a) (the base) is 6. We can use this information to find the length of the other leg (b) (the perpendicular) as follows:
c² = a²+ b²
10²= 6² + b²
100 = 36 + b²
b²= 64
b = 8
Therefore, the length of the perpendicular (EC) is 8 units.
for CD it is given in question that EC=ED there fore
ED=8
CD=EC+ED
CD=8+8
CD=16
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HELP MEEE PLSSSS I NEED IT
The expression that shows Number of vowels in 25 trials is:
(3/8) * 25
Number of vowels in 25 trials is approximately 9 vowels
Number of consonants in his next 30 trials is 19 consonants
How to find the probability of selection?The parameters given are:
Number of tiles = 100
Letter of tiles in results = Q, S, A, B, E, S, E, M
Total number of tiles in result = 8
Total vowels = 3
The expression that shows Number of vowels in 25 trials is:
(3/8) * 25 ≅ 9 vowels
Number of consonants in his next 30 trials = (5/8) * 30 = 150/8 ≅ 19
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What is a radius of the circle?
X
arc YZ
Oline XY
O segment XW
segment XY
QUESTION 3
W
N
Answer:)
O segment XW
Explanation:)
hope it helps :)
Brainliest pls:)
prove by mathematical induction that n(n+1)(n+2) is an integer multiple of 6
Since m and k(k+1)/2 are both integers, we can conclude that (k+1)(k+2)(k+3) is an integer multiple of 6. Thus, by the principle of mathematical induction, the formula n(n+1)(n+2) is an integer multiple of 6 for all non-negative integers n
What is Mathematical Induction?Mathematical induction is a proof technique used to establish a statement for all positive integers by proving it for the base case and showing that if the statement holds for an arbitrary integer, it must also hold for the next integer. It is a powerful method to prove mathematical statements that follow a pattern or recursive structure.
To prove by mathematical induction that n(n+1)(n+2) is an integer multiple of 6 for all non-negative integers n, we will first show that the formula holds true for the base case n=0.
Base case:
When n = 0, we have:
0(0+1)(0+2) = 0 * 1 * 2 = 0, which is an integer multiple of 6 since 0 = 6 * 0.
Induction hypothesis:
Assume that for some k >= 0, k(k+1)(k+2) is an integer multiple of 6.
Induction step:
We need to show that the formula holds true for k+1, assuming that it holds true for k. That is, we need to show that (k+1)(k+2)(k+3) is also an integer multiple of 6.
Expanding the formula, we get:
(k+1)(k+2)(k+3) = (k² + 3k + 2)(k+3) = k³ + 6k² + 11k + 6
Now, we can use the induction hypothesis that k(k+1)(k+2) is an integer multiple of 6 to write k(k+1)(k+2) = 6m, where m is some integer. Substituting this into the above equation, we get:
k³ + 6k² + 11k + 6 = 6m + k³ + 3k² + 2k
Factoring out 3k² + 3k, we get:
k³ + 6k² + 11k + 6 = 6m + 3k(k+1) + 2k
Factoring out 2k from the last two terms, we get:
k³ + 6k² + 11k + 6 = 6m + 3k(k+1) + 2k = 6(m + k(k+1)/2)
Since m and k(k+1)/2 are both integers, we can conclude that (k+1)(k+2)(k+3) is an integer multiple of 6. Thus, by the principle of mathematical induction, the formula n(n+1)(n+2) is an integer multiple of 6 for all non-negative integers n
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the average credit card debt for college seniors is $3262. if the debt is normally distributed with a population standard deviation of $1100. about 15% of college seniors owe less than what amount of money?
If the debt is normally distributed with a population standard deviation of $1100 and 15% of college seniors owe less than the amount of money is equals to the $2121.96.
The area under the standard normal curve represents to probability. The total area under the curve is equals to one. A Standard Normal Cumulative Probability, is a table which provides the cumulative probability of the left tail, as in the values less than the z-score in question. Here,
population mean, μ = $3262
standard deviation, σ = 1100
P- value = 15%
Using the normal distribution table, Z-score value is equals to - 1.0364. Now, we can use Z-scores formula is written [tex]Z = \frac{X - \mu}{\sigma }[/tex]
Substitutes the known values in above formula, - 1.0364 = (X - 3262 )/1100
=> X - 3262 = 1100× ( - 1.0364)
=> X = 3262 - 1140.04
=> X = 2121.96
Hence, required value is $ 2121.96.
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A theater sets up its chairs in equal rows. Alison had a seat which was third from the front and 18th from the back. Naida could see 8 chairs to her left and 11 chairs to her right. How can chairs are in the theater?
Answer:
Let's call the total number of chairs in the theater "x". Since Alison's seat is 3rd from the front, there are 2 chairs in front of her. Similarly, since her seat is 18th from the back, there are 17 chairs behind her. Therefore, the number of chairs between the 2 chairs that Alison and Naida are sitting on is: x - (2 + 17) = x - 19 Now, if Naida can see 8 chairs to her left and 11 chairs to her right, that means there are 8 + 1 + 11 = 20 chairs between her and Alison. So we can set up an equation: (x - 19) - 20 = Alison's seat number Simplifying this equation: x - 39 = Alison's seat number We
A small school with 60 total students records how many of their students
attend school on each of the 180 days in a school year. The mean number of students in attendance daily is 55 students and the standard deviation is 4 students. Suppose that we take random samples of 5 school days and
calculate the mean number of students in attendance on those days in each sample.
Calculate the mean and standard deviation of the sampling distribution of T.
You may round to one decimal place.
Mx=
Ox=
The mean of the sampling distribution of the sample means is 55 and the standard deviation is approximately 1.79 (rounded to one decimal place).
What is Standard deviation?Standard deviation is a measure of the amount of variation or dispersion of a set of data values from its mean or expected value. It is a statistic that represents how spread out the data is from the mean.
The standard deviation is calculated by taking the square root of the variance, which is the average of the squared differences of each data point from the mean. The standard deviation is expressed in the same units as the data and is usually denoted by the symbol "σ" (sigma) for a population or "s" for a sample.
In the given question,
We can start by using the properties of the mean and standard deviation of a sampling distribution:
The mean of the sampling distribution of the sample means (Mx) is equal to the population mean (μ), which is given as 55.
The standard deviation of the sampling distribution of the sample means (Ox) is equal to the population standard deviation (σ) divided by the square root of the sample size (n), i.e.,
Ox = σ / sqrt(n)
where n = 5 (the sample size) and σ = 4 (the population standard deviation).
Substituting these values into the formula, we get:
Ox = 4 / sqrt(5) ≈ 1.79
Therefore, the mean of the sampling distribution of the sample means is 55 and the standard deviation is approximately 1.79 (rounded to one decimal place).
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