9514 1404 393
Answer:
12 in²
Step-by-step explanation:
The ratio of areas is the square of the ratio of linear dimensions.
A/27 = (8/12)²
A = 27(2/3)² = 12
The area of the smaller figure is 12 in².
An object is moving at a speed of 3 yards per month. Express this speed in centimeters per day.
The speed of the object is 9.14 cm per day.
What is unit conversion?A unit conversion expresses the same property as a different unit of measurement. For instance, time can be expressed in minutes instead of hours, while distance can be converted from miles to kilometers, or feet, or any other measure of length.
Given that, An object is moving at a speed of 3 yards per month. we are asked to express this speed in centimeters per day.
For this, we will have to convert the units,
1 yard = 91.44 cm
3 yards = 91.44 × 3 = 274.32 cm
Therefore, we can say the object is moving 274.32 cm per month
Now,
If it moves 274.32 cm in one month,
Therefore, in day, it will move = 274.32 / 30 [1 month = 30 days]
= 9.144
Hence, the speed of the object is 9.14 cm per day.
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Which is the algebraic sentence for "a number decreased by 6 is 12"?
x - 6 = 12
x + 6 = 12
6x = 12
x6 = 12
Answer:
x - 6 = 12 is the answer
im 100% sure
Answer:
x-6=12
Step-by-step explanation:
X=12+6
X=18
substitute for X in the equation
18-6=12
Plsssss help me in the photo
0.01 is not the way of expressing the relationship because it does not represent the correct ratio between 10 square and 100 square
What is ratio ?A ratio tells the relationship between two or more quantities by comparing their relative sizes.It is typically written as two or more numbers separated by a colon (:), such as 2:4, or expressed as a fraction, such as 2/4. The numbers in a ratio represent the relative amounts of the quantities being compared. A ratio can be used to compare any type of quantity, such as length, weight, or time.
A) 10 square is 1/10th of the area of 100 square. It can be represented as a fraction, where the numerator is the area of the smaller square (10) and the denominator is the area of the larger square (100). The fraction would be 1/10.
B) Another way of expressing the relationship is as a percentage, where the smaller area (10) is divided by the larger area (100), and the result is multiplied by 100 to get the percentage. So 10 square is 10% of 100 square.
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the figure shows the dimensions of a room in which receptions are held. The room is being carpeted. The three semi-circular parts of the room are congruent. How much carpet is needed? use 3.14 for pie
Answer:
258.39 m^2
Step-by-step explanation:
Solve for the rectangle:
18 • 12= 216
Now solve for the 3 semi circles:
A = 3.14(3)^2= 28.26/2 = 14.13 •3 = 42.39
Add up the areas:
216 + 42.39 = 258.39
Which of the systems of linear equations are equivalent?
Answer:
The first two
Step-by-step explanation:
The first two
The bottom equation of the second set is the
bottom equation of the first set multipied by -2
What is the inverse of 7 5?
The multiplicative inverse of 7/5 is 5/7 using the formula of multiplicative inverse like (x)^-1 which equals to 1/x.
let's try to learn what is multiplicative inverse.
1/N or [tex]N^-1[/tex] is used to denote a number's multiplicative inverse, such as the number N. From the Latin word "reciprocus," it is also known as reciprocal. Inverse refers to something that is the opposite. The acquired reciprocal of a number is such that its value equals identity 1 when multiplied by the original number. In other terms, it is a technique for producing identity 1 by diluting a number by itself, as in N/N = 1.
One is obtained when a number is multiplied by its own multiplicative inverse.
When a number is multiplied by its original number, the multiplicative inverse of that number, or x^-1, produces a value equal to 1. The multiplicative inverse of 2, for instance, is 2^-1 since it fulfils the formula: 2 x (2^-1) = 2 x (1/2) = 1.It is also known as a number's reciprocal.
Multiplicative inverse of 7/5 is (7/5)^-1 = 1/(7/5) = 5/7.
Given question is incomplete complete question here:
What is the multiplicative inverse of 7/5?
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-2-(-7)= help me pls.
Answer:
[tex] - 2 - ( - 7) \\ = - 2 + 7 \\ = 5[/tex]
Answer:
5
Step-by-step explanation:
-2-(-7)
-2 + 7
= 5
What is the length of PQ
Check the picture below.
[tex]\sin(30^o)=\cfrac{\stackrel{opposite}{PQ}}{\underset{hypotenuse}{4}}\implies 4\sin(30^o)=PQ\implies 4\left( \cfrac{1}{2} \right)=PQ\implies 2=PQ[/tex]
A salesperson works 40 hours per week at a job where he has two options for being paid. Option A is an hourly wage of $18. Option B is a commission rate of 4% on weekly sales. How much does he need to sell this week to earn the same amount with the two options?
Let S be the amount of money the salesperson needs to sell in a week to earn the same amount with the two options. The salesperson earns 40 * $18 = $<<40*18=720>>720 with Option A.
We can set up the following equation to represent the amount of money the salesperson earns with Option B:
0.04S = $720
Solving for S, we find that the salesperson needs to sell $720 / 0.04 = $<<720/0.04=18000>>18,000 to earn the same amount with Option B.
I NEED HELP I will give brainliest.
Answer: C
x = Grace's collection
3x = Maci's collection
4 = Kendra's collection
52 = Total collection
Because the total is 52, the equation would be x + 3x + 4 = 52. Add the like terms to get 4x+4=52. Subtract 4 on both sides to get 4x=48. Divide 4 on both sides to get x = 12. Because Maci's collection is 3x, she should have 36 earrings.
Please help!!! in need of help, will mark brainliest!
Answer:
minimum value : -1
Step-by-step explanation:
y= 2x^2- |0x+1|
y=2x^2-1
0x has no value they're just putting that in there to trip you up. Also you can view the graph on Desmos graphing calc online to see the minimum value of this function.
x is positive so parabola opens up: meaning minimum value
y-intercept is (0, - 1) so minimum value = -1
A length is measured at 21 cm correct to two significant figures, what is the lower bound of the length and upper bound?
Answer:
20.5 and 21.5
Step-by-step explanation:
It says 2 significant figures so the least it can possibly be is 0.5 less and the most it can be is 0.5 more as if it was, lets say 20.4 it would round down to 20 not 21.
A survey was conducted to determine whether a group of 11th graders and 12th graders preferred to go to the amusement park or to the zoo for a class
trip. The results are shown in the table.
Amusement Park Zoo
11th Graders
32
18
12th Graders
24
26
Based on the table, what is the probability that a student preferred a class trip to the zoo given they are in 11th grade?
Answer:
36%
Step-by-step explanation:
18/50 = 0.36 --> 36%
The probability that a student preferred a class trip to the zoo given they are in 11th grade is; 0.36
What is the probability?
Total number of eleventh graders is; 32 + 18 = 50
Number of class trip to the zoo given they are in the 11th grade = 18
Thus, probability that a student preferred a class trip to the zoo given they are in 11th grade is;
P(11th grade trip to zoo) = 18/50
P(11th grade trip to zoo) = 0.36
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What is the degree of the polynomial 5x³ 4x² 7x?
The polynomial 5x³ 4x² 7x has three terms, with the highest degree being 3, which makes the degree of the polynomial 3. The polynomial can be written as 5x³ + 4x² + 7x.
1. Identify the polynomial: 5x³ + 4x² + 7x
2. Count the number of terms: 3
3. Find the highest degree (the largest exponent): 3
4. The degree of the polynomial is 3.
The degree of a polynomial is the highest degree of its terms. A polynomial is a mathematical expression consisting of one or more terms with coefficients and exponents. In this case, the polynomial is 5x³ + 4x² + 7x. This polynomial has three terms, and the highest degree is 3, which makes the degree of the polynomial 3. This means that the largest exponent of the terms is 3. To calculate the degree of a polynomial, simply count the number of terms and identify the highest degree, which is the largest exponent. If the polynomial has only one term, then the degree is the exponent of that term
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I need help with polynomials
Here is the equation
The solution to the polynomial is x = -1, x = 1/2 and x = -1
How to solve the polynomial expressionFrom the question, we have the following parameters that can be used in our computation:
2x³ - x² - 2x + 1
Expand
2x³ - x² - 2x + 1 = 2x³ - x² - 2x + 1
Factorize the expression
This gives
2x³ - x² - 2x + 1 = x²(2x - 1) - 1(2x - 1)
Factor out 2x - 1
2x³ - x² - 2x + 1 = (x² - 1)(2x - 1)
Express x² - 1 as difference of two squares
2x³ - x² - 2x + 1 = (x - 1)(x + 1)(2x - 1)
So, we have
(x - 1)(x + 1)(2x - 1) = 0
Solve for x
x = 1, x = -1 and x = 1/2
Reorder the solutions
x = -1, x = 1/2 and x = -1
Hence, the solution is x = -1, x = 1/2 and x = -1
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Please help me respond this
The closest estimate of x when the functions satisfy the condition f(x) = g(x) is 1.65
What is a function?
Function is a mathematical law that establishes the relationship between an independent variable and a dependent variable.
Given,
[tex]f(x) =[/tex] [tex]\log\x_{3} (2x)[/tex]
[tex]g(x) = -4x^{2} + 3x +7[/tex]
Now plotting both the graphs in Desmos, we got the result as in the below figures.
Given f(x) = g(x)
So from the graphs, we can find an intersecting point. This intersecting point is common to both f(x) and g(x)
Therefore from the graph, the closest estimate of x is 1.65.
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HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP
HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP
Answer:
A) All positive real numbers.
Step-by-step explanation:
Money can only be real numbers/decimals
And because your adding it can't be negative.
Answer:
D
Step-by-step explanation:
This is a real world situation, meaning that there will be no negative amount if weeks, This rules out B and C. As all the numbers are whole, there is no reason for the answer to be all positive real numbers making the answer D.
In a particular country, the average adult is spending even more time on a mobile device than watching television. From 2014 to 2021, the function y=-9.11x+280x can be used to estimate the average number of minutes per day that an adult spends watching television, and the function y=12.34x + 169.9 can be used to estimate the average number of minutes per day that an adult spends on a mobile device. For both functions, x is the number of years after 2014. a. Based on this information, determine the year in which the time spent watching television is the same as the time spent on a mobile device. b. Use these functions to predict how much time the average adult spends per day watching television and on a mobile device for the year 2021..
After 0.6412 years the average for mobile device and television usage will coincide.
What are functions?
Function, in mathematics, is an expression, rule, or law that defines a relationship between one variable (the independent variable) and another variable (the dependent variable).
Given here the equations as y=-9.11x+280x and y=12.34x + 169.9 the period for which the averages are equal will be given by
9.11x+280x=12.34x + 169.9
x = 0.6412 years
Again, after 7 years in 2021 the respective averages will be 9.11 ×7+280×7 = 2023.77 and similarly for mobile device the time spent would be 256.28 minutes
Hence, the answers are After 0.6412 years the average for mobile device and television usage will coincide.
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Leah went shopping for a new phone because of a sale. The store was offering a 30% discount. If the price on the tag was $23, what would be the price after the discount but before tax, to the nearest dollar and cent?
Answer:
Discounted price= $16.1
Step-by-step explanation:
Giving the following information:
Discount rate (d)= 30%
Regular price= $23
To calculate the discounted price, we need to use the following formula:
Discounted price= regular price*(1 - discount rate)
Discounted price= 23*0.7
Discounted price= $16.1
A square board has an area of 144 square units. How long is each side of the board?
Answer: 12 units
Step-by-step explanation:
∴ Area of Square = side length × side length
⇒144 = lengt²
⇒length = √144
⇒length = 12 units ANSWER
hope that helps...
Help help help someone please help me
The answer to this question is B
Step-by-step explanation:
Can you help me with this
Answer:
slope = 2
Step-by-step explanation:
calculate the slope m using the slope formula
m = [tex]\frac{y_{2}-y_{1} }{x_{2}-x_{1} }[/tex]
with (x₁, y₁ ) = (- 1, 0) and (x₂, y₂ ) = (1, 4) ← 2 points on the line
m = [tex]\frac{4-0}{1-(-1)}[/tex] = [tex]\frac{4}{1+1}[/tex] = [tex]\frac{4}{2}[/tex] = 2
Answer: The slope is 2.
Step-by-step explanation: To find the slope of a line, we first need to pick two points on a line. To solve this, I picked points (-2, -2) and (1, 4). The slope is rise over run, so you need to find the rise and run and divide.
We need to go 6 spaces up from (-2, -2) to get to (1, 4). This is our rise. Then, we go 3 spaces to the right. That is our run. 6 / 3 is 2, so that's your slope. Notice that if you cannot divide the rise and run into a whole number, keep it as a fraction instead.
Let me know if this is right! :)
25 POINTS AND BRAINIEST BADGE
NO LINKS
NO PICTURE FOR QUESTION
A parallelogram has vertices at (-5, -1), (-2, -1), (-3, -4), and (-6, -4). What is the approximate perimeter of the parallelogram? Round your answers to the nearest hundredth.
A. 9.16
B. 12 units
C. 12.32 units
D. 14
Answer:
12.32 units
Step-by-step explanation:
Use the distance formula to find the lengths between two points:
[tex]d=\sqrt{(x_{2} -x_{1})^2+(y_{2}-y_{1})^2 }[/tex]
the distance between (-2, -1) and (-5,-1) is
[tex]\sqrt{(-2-(-5))^2+(-1-(-1))^2}[/tex]
=[tex]\sqrt{3^2+0^2}[/tex]
=[tex]\sqrt{9}[/tex]
=3
the distance between (-2, -1) and (-3, -4) is
[tex]\sqrt{(-2-(-3))^2+(-1-(-4))^2}[/tex]
=[tex]\sqrt{1^2+3^2}[/tex]
=[tex]\sqrt{10}[/tex]
≈3.16
the distance between (-6, -4) and (-3, -4) is
[tex]\sqrt{(-6-(-3))^2+(-4-(-4))^2}[/tex]
=[tex]\sqrt{(-3)^2+0^2}[/tex]
=[tex]\sqrt{9}[/tex]
=3
the distance between (-6, -4) and (-5, -1) is
[tex]\sqrt{(-6-(-5))^2+(-4-(-1)^2}[/tex]
=[tex]\sqrt{(-1)^2+3^2}[/tex]
=[tex]\sqrt{10}[/tex]
≈3.16
Now, add all the sides:
3+3.16+3+3.16=12.32 units
Note: A property of a parallelogram is that it has two pairs of congruent sides, so for this problem, you could solve for 2 different sides, double them, then add and you will get the same thing.
1
12. What is heavier 100 lb or 1000oz
Answer:
100 lb
Step-by-step explanation:
1 lb = 16 oz
100 lb = 1600 oz
1600 oz > 1000 oz
Answer:
1000 oz = 62.5 lb
[tex]100 > 62.5[/tex]
100 lb is heavier
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Charlie sold 100 tickets for his show.
An adult ticket costs £6.50 and a child ticket costs £2.50.
Charlie's ticket sales totalled £410.
a) How many adult tickets did he sell?
b) How many child tickets did he sell?
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For adults, there were 40 tickets sold, and for kids, there were 60 tickets sold.
What are the three algebraic rules?There are several laws that regulate the sequence in which you should do the operations in math and algebra. The Commutative, Associative, and Distributive Laws are the three that are most frequently discussed.
Let x be the total number of adult tickets sold.
6.50 × x + 2.50 × (100 - x) = 410
6.50 × x + 250 - 2.50x = 410
4x = 410 - 250
x = 40
Hence,
a) 40 tickets were sold by adults, according to item
and
b) 100-40=60 tickets were sold to children.
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F(x)=5-3x find f(x+2)
Answer:
f(x + 2) = - 3x - 1
Step-by-step explanation:
substitute x = x + 2 into f(x) , that is
f(x + 2)
= 5 - 3(x + 2)
= 5 - 3x - 6
= - 3x - 1
what does this mean please tell me the answer, Thanks!
9514 1404 393
Answer:
Any of ...
rotation 180° about the center of symmetryreflection across the horizontal and vertical lines through the center of symmetry, in either orderreflection across any horizontal line, translation to the left, and translation up or down to final position (depending on where the horizontal line is)Step-by-step explanation:
The question is asking you what combinations of rotation, reflection, translation, and dilation will make the W have the position, orientation, and size of the M.
The image (M) is the same size as the preimage (W), so no dilation is involved.
The up-down orientation of the image is opposite that of the preimage, so reflection across a horizontal line, or rotation 180° will be involved. Depending on the line of reflection or the center of rotation, translation to the final image position may be required.
The preimage is symmetrical about a vertical centerline, so translation left or right can also be accomplished by reflection about a suitable vertical line.
_____
If you have trouble visualizing this, it can help to cut the letter from a piece of paper and manipulate it to model rotation, reflection, or translation.
HELP ASAP!!! PICTURE TO LOOK OFF OF
Approximate the correlation of the data shown below
Explain the concept of extraneous solutions. Give examples with the different types of functions explored.
Extraneous solution, that emerges from the method of solving the hassle but isn't always a valid strategy to the trouble.
What is a function ?
Function can be defined as a relation , which relates an input to output is called as function.
In Mathematics, an extraneous solution (or spurious solution) is an solution, consisting of that to an equation, that emerges from the procedure of solving the hassle but isn't always a legitimate strategy to the problem.[1] A missing solution is an answer that is a valid strategy to the hassle,
however disappeared all through the process of solving the problem. each are frequently the consequence of acting operations that are not invertible for a few or all values of the variables, which prevents the chain of logical implications inside the proof from being bidirectional.
Hence , The Extraneous solution, that emerges from the method of solving the hassle but isn't always a valid strategy to the trouble.
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sutton is listing the prime factorazation for 220 what is the last factor she needs 2 square root of 5
Answer:
4.472135955
Step-by-step explanation: