pls help i am braindead rn and i dont know how to do this atm thank u!

Answer:

  x = 1/2

Step-by-step explanation:

You want to know the x-intercept of the graph of y = -2x +1.

The x-axis corresponds to a y-value of 0. The graph of any relation will intersect the x-axis where the output value is 0. We can find those points by solving the relation after setting y=0.

  y = -2x +1 . . . . . . . given relation

  0 = -2x +1 . . . . . . . equation with y=0

  2x = 1 . . . . . . . . . . . add 2x

  x = 1/2 . . . . . . . . . . . divide by 2

The graph intersects the x-axis where x = 1/2.

The statement AB corresponds to GH is not true.

What is trapezoid?

A trapezoid, also known as a trapezium, is a quadrilateral with at least one pair of parallel sides. The parallel sides are called the bases of the trapezoid, and the other two sides are called the legs or the lateral sides. A trapezoid can be either right or oblique. In a right trapezoid, one of the angles between the bases is a right angle, while in an oblique trapezoid, none of the angles between the bases is a right angle. The height of a trapezoid is the perpendicular distance between the bases.

Which given statement is not true?

The statement that is NOT true is AB corresponds to GH.

Since the trapezoids are congruent, their corresponding sides are equal in length. Therefore, AD corresponds to EH, BC corresponds to FG, and AB corresponds to EF. However, AB does not correspond to GH because they are not parallel sides in the trapezoids.

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The average rate of change from time t=1 to t=8 will be -17.57 gallons/hour.

It should be noted that to find the average rate of change of R(t) from t = 1 to t = 8, we need to calculate the total change in R(t) over that time interval and divide by the duration of the interval.

The total change in R(t) from t = 1 to t = 8 is R(8) - R(1), which is:

R(8) - R(1) = 175 - 298 = -123

The negative sign indicates that the rate of pumping is decreasing over this time interval.

The duration of the interval is 8 - 1 = 7 hours.

Therefore, the average rate of change from t = 1 to t = 8 is:

(-123 gallons/hour) / (7 hours) = -17.57 gallons/hour

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The estimates for the solutions are x = -0.25 and 1.25 when y = 0 and x = -0.5 and 1.5 when y = 2

From the question, we have the following parameters that can be used in our computation:

y = 4x² - 4x - 1

When y = 0, we have

4x² - 4x - 1 = 0

From the graph, we can see that

x = -0.25 and 1.25 when y = 0

When y = 2, we have

4x² - 4x - 1 = 2

From the graph, we can see that

x = -0.5 and 1.5 when y = 2

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Answer: O

Step-by-step explanation: if the bag is only filled with the letters in OUTCOME then there are more O’s than the rest

Answer:

Step-by-step explanation:

Answer:

56 students

Step-by-step explanation:

If 40% of students who picked Jaguars are freshmen, and the total who picked it is 140 means [tex]140\times0.4 = 56[/tex]

Hope this helps!!!

This is the inequality in slope-intercept form, where the slope is 2 and the y-intercept is -3.  the solution to the inequality[tex]2x - y \geq 3[/tex] is represented by the shaded region above the line. [tex]y=2x-3[/tex].

In mathematics, an inequality is a statement that compares two values or expressions using a relational operator, such as less than (<), greater than (>), less than or equal to (≤), greater than or equal to (≥), or not equal to (≠). Thet learn more about degree being compared can be numbers, variables, or expressions.

An inequality expresses that one value is smaller or larger than another, or that they are not equal. For example, x > 5 is an inequality that says x is greater than 5, while y ≤ 10 is an inequality that says y is less than or equal to 10.

by the question.

To solve 2x - y ≥ 3, we need to isolate y on one side of the inequality.

First, we can add y to both sides to get:

[tex]2x \geq y + 3[/tex]

Next, we can subtract 3 from both sides to get:

[tex]2x - 3\geq y[/tex]

Alternatively, we can switch the inequality sign and write:

[tex]y \geq 2x - 3[/tex]

So, the solution is:

[tex]y \leq 2x - 3[/tex]

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The unit rate of the given expression through which the relation is satisfied is 300km / 2.5 hrs = 120 km / hr

What about unit rate?

In mathematics, a unit rate is a ratio between two quantities in which one quantity is expressed in terms of one unit of measure. It is commonly used to compare the cost or value of two or more items. For example, if a store charges $4 for 2 pounds of bananas, then the unit rate is $2 per pound of bananas.

The general formula for calculating unit rate is:

Unit rate = Quantity of one item ÷ Cost or value of that item

This formula can be used to find the unit rate of any item or quantity, as long as the quantity and cost or value are known. Unit rate is a useful tool in mathematics, as it allows for easy comparison of different quantities or values, and helps to make complex calculations more straightforward.

According to the given information:

The unit rate = [tex]\frac{Distance}{Time}[/tex]

i.e , unit rate = 300/2.5 = 120

⇒ 120km/hr.

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Answer:

x < 6/5 and x > 32/5

Step-by-step explanation:

|x| means taking the absolute value, or the distance from 0. This means that  |-8| = 8, because -8 is 8 from 0

if |14-5x|>8, 14-5x > 8, or 14-5x < -8 because the absolute value of any number less than -8 is more than 8

for 14 - 5x > 8, -5x > -6, 5x < 6, x < 6/5

for 14 - 5x < -8, -5x < -32, 5x > 32, x > 32/5

Answer: = 11.3 units

Step-by-step explanation: Work is attached below <3

Answer:

10 / 14

Step-by-step explanation:

10 × 14 = 140

When 10 / 14 is simplified, you'll get 5 / 7 because 2 will go into 10 five( 5 ) times and 2 will go into 14 seven ( 7 ) times.

The sum of the reciprocals of all positive integers greater than 1, whose only prime factors are 2's and/or 3's is 8/3.

The sum of the reciprocals of all positive integers greater than 1, whose only prime factors are 2's and/or 3's is 8/3. To prove this, we can use the following equation:

(1/2) + (1/3) + (1/4) + (1/6) + (1/8) + (1/9) + (1/12) + (1/18) = 8/3.

Here, 1/2, 1/3, 1/4, and 1/6 are all reciprocals of numbers whose prime factors are only 2's and/or 3's,

and the sum of these four fractions is 2/3.

To complete the sum, we can add the reciprocals of 8, 9, 12, and 18, which are 1/8, 1/9, 1/12, and 1/18, respectively.

The sum of these four fractions is 6/3, and the sum of 2/3 and 6/3 is 8/3.

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Candice's counselor was helping with the liability part of the assessment phase by asking for documentation of her mortgage payment, car loan, credit card account, and student loans. So correct option is B.

A loan is a financial transaction in which one party, typically a lender, provides money or assets to another party, typically a borrower, in exchange for future repayment of the loan amount plus interest or fees. Loans are a common way for individuals, businesses, and governments to finance purchases, investments, and other expenses.

Loans can be secured or unsecured. A secured loan is backed by collateral, such as a house or car, which the lender can seize if the borrower fails to repay the loan. An unsecured loan, on the other hand, is not backed by collateral and is based solely on the borrower's creditworthiness and ability to repay.

Loans can have fixed or variable interest rates. A fixed interest rate remains the same over the life of the loan, while a variable interest rate can fluctuate based on changes in the market or other factors.

Candice's counselor was helping with the liability part of the assessment phase by asking for documentation of her mortgage payment, car loan, credit card account, and student loans.

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The least-squares regression line has the equation In(Weight) = -5.28 + 3.44 In (Length)

A statistical tool for establishing the relationship between two variables is the equation of the least-squares regression line. The length and weight of bluegill fish are the variables under investigation in this case.

The regression analysis produced the equation In(Weight) = -5.28 + 3.44 In (Length).

The weight's natural logarithm as a function of length is represented in this equation. The equation can be changed in order to calculate a bluegill fish's weight based on its length.

The equation Weight = [tex]0.0054 * e(3.44 In(Length))[/tex] is the end result. Based on their length, bluegill fish can be estimated to weigh a certain amount using this calculation.

The coefficient of determination demonstrates that 99% of the variability in weight can be explained by the variable in length and that the high R-squared value of 0.99 suggests that the equation is a good fit for the data. The management of fisheries can benefit from this knowledge, which can help determine the weight of bluegill fish depending on their length.

The relationship between the weight and length of bluegill fish can be seen in this equation. The equation can be adjusted to solve for Weight in order to provide an estimate of weight for a given length:

Weight = [tex]e^(In(Weight))[/tex] (where e: base of natural logarithm)

Weight = [tex]e^(-5.28+3.44 In(Length))[/tex]

Weight = [tex]e^(-5.28) * e^(3.44 In(Length))[/tex]

Weight = [tex]0.0054 * e^(3.44 In(Length))[/tex]

So, using this equation, one may determine a bluegill fish's weight if they knew its length.

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The required in order for Micaela to end up with ,n = 365 , t = 12, P = $360, and A = $670

A relation is any subset of a Cartesian product.

As an illustration, a subset of is referred to as a "binary connection from

A binary relation from A to B is made up of these ordered pairs (a,b),

A to B," and more specifically, a "relation on A."

A binary relation from A to B is made up of these ordered pairs (a,b), here the first component is from A and the second component is from B.

Every item in a set X is connected to one item in a different set Y through a connection known as a function (possibly the same set).

A function is only represented by a graph, which is a collection of all ordered pairs (x, f (x)).

Every function, as you can see from these definitions, is a relation from X.

According to our question-

r=7.5%

Thus, 7.5% would be required in order for Micaela to end up with $670.

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Answer:

To find the equation of a line perpendicular to y = (2/7)x - 5 and passing through the point (12,12), we can use the fact that the slopes of two perpendicular lines are negative reciprocals of each other.

First, find the slope of the given line by identifying the coefficient of x. In this case, the slope is 2/7.

The negative reciprocal of 2/7 is -7/2. This is the slope of the line we are looking for.

Use the point-slope form of the equation of a line, which is y - y1 = m(x - x1), where m is the slope and (x1, y1) is a point on the line. Plugging in the values we have:

y - 12 = (-7/2)(x - 12)

Simplify and rewrite in slope-intercept form (y = mx + b) if desired:

y - 12 = (-7/2)x + 42

y = (-7/2)x +  54

So the equation of the line perpendicular to y = (2/7)x - 5 and passing through the point (12,12) is y = (-7/2)x + 54, which is option 4.

Hope This Helps!

Therefore, the reaction is first-order with respect to the concentration of "A".

In mathematics, an equation is a statement that asserts the equality of two expressions. It typically contains one or more variables, which are placeholders for unknown values, and constants, which are known values. The goal in solving an equation is to find the values of the variables that satisfy the equation, that is, make it true. Equations can be linear or nonlinear, and they may involve one or more variables. Some common types of equations include polynomial equations, trigonometric equations, exponential equations, and logarithmic equations.

Here,

1. Table completion:

Time (s) [A] (M)

0 1.0

50 0.81

100 0.65

150 0.53

200 0.43

250 0.35

300 0.28

350 0.23

400 0.19

450 0.15

500 0.12

2. To determine the reaction order with respect to the concentration of "A", we need to manipulate the above equation for the different orders of the reaction and re-plot the tabulated numbers to determine the order.

For zero-order: [A]t = [A]o - kt

Taking the natural logarithm on both sides:

ln [A]t = ln [A]o - kt

This gives a straight line equation of the form y = mx + b, where y = ln[A]t, x = t, m = -k, and b = ln[A]o.

For first-order: ln [A]t = ln [A]o - kt

Taking the reciprocal on both sides:

1/[A]t = kt + 1/[A]o

This gives a straight line equation of the form y = mx + b, where y = 1/[A]t, x = t, m = k, and b = 1/[A]o.

For second-order: 1/[A]t = 1/[A]o + kt

This gives a straight line equation of the form y = mx + b, where y = 1/[A]t, x = t, m = k, and b = 1/[A]o. We can then plot the given data in Excel with the appropriate equation and check which equation gives us the best straight line fit. The slope of the line will give us the reaction order. Using Excel, we find that the first-order equation gives the best straight line fit with a slope of -0.0077.

3. To calculate the rate constant 'k', we can use the slope of the straight line fit obtained above.

From the equation ln [A]t = ln [A]o - kt, we have k = -slope.

Therefore, k = 0.0077 s⁻¹.

To estimate the half-life of "A", we can use the equation for the half-life of a first-order reaction:

t1/2 = ln 2/k

Substituting the value of k obtained above, we get:

t1/2 = ln 2/0.0077 s⁻¹

= 89.9 s

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Answer:

the P is 25% for all positions

Step-by-step explanation:

P = (1/n)

P = probability

1 = the total of the whole

n = number of options

P = 1/4

P = .25

a.The median height of the preschoolers is 36 inches.

b.The mode height is 35 inches.

c.The range in student height is 40 - 32 = 8 inches.

d.Since the median height is 36 inches, about 50% of the preschoolers in Mrs. Dani's class were taller than the median height.

e. There are 4 dots above 38 and 7 dots between 35 and 38.

The median is the middle value of a dataset when it is arranged in order from least to greatest or greatest to least. If the dataset has an odd number of values, the median is the middle value. If the dataset has an even number of values, the median is the average of the two middle values.

Range is the difference between the largest and smallest values in a set of data. In statistics, range is a measure of dispersion that indicates the spread or variability of a set of observations.

In this questions,

a. The median height is the middle value of the data when arranged in order. Since there are 23 students in the class, the median will be the average of the 12th and 13th tallest students. Looking at the dot plot, we can see that the 12th and 13th tallest students both have a height of 36 inches. Therefore, the median height of the preschoolers is 36 inches.

b. The mode height is the most common height among the students. Looking at the dot plot, we can see that the mode height is 35 inches, as there are more dots above 35 than any other value.

c. The range is the difference between the highest and lowest values in the data set. Looking at the dot plot, we can see that the shortest student is 32 inches tall and the tallest student is 40 inches tall. Therefore, the range in student height is 40 - 32 = 8 inches.

d. Since the median height is 36 inches, about 50% of the preschoolers in Mrs. Dani's class were taller than the median height.

e. There are fewer preschoolers who are 38 inches or shorter than preschoolers who are 36 inches tall. From the dot plot, we can see that there are 4 dots above 38 and 7 dots between 35 and 38.

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It will take approximately 58.71 years for the amount in the account to be more than $5000.

We can solve for the number of years it will take for the amount in the account to be more than $5000 by setting the given equation equal to 5000 and solving for t:

5000 = 500 (1.04)^t

Dividing both sides by 500, we get:

10 = (1.04)^t

To solve for t, we can take the logarithm of both sides.

1 = t * log(1.04)

Simplifying, we get:

t = 1/log(1.04)

Evaluate

t ≈ 58.71

Therefore, it will take approximately 58.71 years for the amount in the account to be more than $5000.

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The proportion of red gumballs in the random sample is 0.4, meaning 40% of the 200 gumballs are red. To estimate the number of red gumballs in the entire population of 200 gumballs, we multiply the proportion of red gumballs by the total number of gumballs, 0.4 x 200 = 80.

Proportion in mathematics refers to the equality of two ratios. It asserts that two ratios are comparable. A ratio is a fractional comparison of two numbers or quantities, such as a/b or c/d.

To estimate how many of the 200 gumballs are red, we can use the proportion of red gumballs in the random sample and apply it to the entire population of 200 gumballs.

The proportion of red gumballs in the random sample is:

10/25 = 0.4

This means that 40% of the gumballs in the random sample are red.

To estimate the number of red gumballs in the entire population of 200 gumballs, we can multiply the proportion of red gumballs by the total number of gumballs:

0.4 x 200 = 80

Therefore, we can estimate that there are approximately 80 red gumballs in the machine.

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The solution is Option C.

The total amount of earnings of Sondra after 5 years is $ 169,113

What is an Equation?

Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.

It demonstrates the equality of the relationship between the expressions printed on the left and right sides.

Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.

Given data ,

Let the annual salary of Sandra be A = $ 30,000

Now , the percentage increase in salary = 6 %

So , the equation will be

First year :

The increase in first year =  annual salary of Sandra + percentage increase in salary x annual salary of Sandra

The increase in first year = 30000 + ( 6/100 ) x 30000

                                        = 30000 + 1800

                                        = $ 31,800

Second year :

The increase in second year =  increase in first year + percentage increase in salary x increase in first year

The increase in second year = 31800 + ( 6/100 ) x 31800

                                        = 31800 + 1908

                                        = $ 33,708

Third year :

The increase in third year =  increase in second year + percentage increase in salary x increase in second year

The increase in third year = 33708 + ( 6/100 ) x 33708

                                        = 33708 + 2022.48

                                        = $ 35,730.48

Fourth year :

The increase in fourth year =  increase in third year + percentage increase in salary x increase in third year

The increase in fourth year = 35730.48 + ( 6/100 ) x 35730.48

                                        = 35730.48 + 2143.8288

                                        = $ 37,874.3088

Now , the equation is

The total earnings of Sondra is = First year salary + second year salary + third year salary + fourth year salary

The total earnings of Sondra is = 30000 + 31,800 + 33,708 + 35,730.48 + 37,874.3088

The total amount earnings of Sondra is = $ 169,112.7888

Therefore , the total amount earnings = $ 169,113

Hence , The total amount of earnings of Sondra after 5 years is $ 169,113

Answer:

C)  $199,797

Step-by-step explanation:

Adding 7% of a number to the number is the same as multiplying the number by 1.07

First year: $45,000

Second year: $45,000 × 1.07 = $48,150

Third year: $48,150 × 1.07 = $51,520.50

Fourth year: $51,520.50 × 1.07 = $55,126.94

Total = $199,797.43

Answer: C)  $199,797

Answer:

Step-by-step explanation:

Answer:

Step-by-step explanation:

The formula for the circumference of a circle is "c = 2 pi r", where "c" represents the circumference, "pi" represents the mathematical constant pi (approximately equal to 3.14159), and "r" represents the radius of the circle.

This formula relates the distance around a circle to its size, and is useful for calculating various measurements related to circles, such as arc length and sector area. It is important to note that the formula for the circumference of a circle assumes the circle is a perfect, unbroken curve, and thus may not be accurate for circles that are not perfectly round.

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There is not enough information provided to determine if there is sufficient evidence at the 0.02 level to refute the publisher's claim. The null hypothesis is that proportion of readers owning a Rolls Royce is equal to 0.78 and alternative hypothesis is that proportion of readers owning a Rolls Royce is not equal to 0.78.

To determine if there is sufficient evidence at the 0.02 level to refute the newsletter publisher's claim that 78% of their readers own a Rolls Royce, we need to conduct a hypothesis test. Here are the null and alternative hypotheses for this scenario:

Null Hypothesis (H0): The proportion of readers who own a Rolls Royce is equal to 0.78 (P = 0.78)

Alternative Hypothesis (H1): The proportion of readers who own a Rolls Royce is not equal to 0.78 (P ≠ 0.78)

To test these hypotheses, follow these steps:

1. Collect a random sample of readers and record the number of Rolls Royce owners in the sample.

2. Calculate the sample proportion (p-hat) of Rolls Royce owners.

3. Calculate the test statistic using the formula: z = (p-hat - P) / sqrt(P * (1-P) / n), where P is the claimed proportion (0.78) and n is the sample size.

4. Determine the critical value for a two-tailed test at the 0.02 significance level (α = 0.02), which is approximately ±2.576 (from a z-table or calculator).

5. Compare the test statistic (z) to the critical value. If the test statistic is greater than or equal to the critical value or less than or equal to the negative critical value, reject the null hypothesis in favor of the alternative hypothesis. If not, fail to reject the null hypothesis.

Based on the results, you can determine if there is sufficient evidence to refute the publisher's claim at the 0.02 significance level. However, just based on the given information, there is not enough information to determine if there is sufficient evidence at the 0.02 level to refute the publisher's claim. We need the sample size.

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