pls i really need this 20 points I will give brainliest
A rectangle is shown on the coordinate grid.

On a coordinate plane, side d has points (negative 4, 3) and (0, 5), side a has points (0, 5) and (3, negative 1), side b has points (3, negative 1) and (negative 1, negative 3), and side c has points (negative 1, negative 3) and (negative 4, 3).

Which equation represents the side that is parallel to side d?
y = 2 x + 5
y = negative 2 x + 5
y = one-half x minus five-halves
y = negative one-half x minus seven-halves

Answer:

a

Step-by-step explanation:

i don't really know just Draco told me i should answer this

The constant of variation for the given direct variation is 2.

So, the origin (0, 0) and the supplied line are intersected by it (3, 6)

Slope formula: m = y2 - y1/x2 - x1

Where,

Substitute values as follows:

Therefore, the constant of variation for the given direct variation is 2.

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Correct question:

Determine the constant of variation for the direct variation given.

A. 1/2

B. 1

C. 2

Answer:

Perimeter = 16x-20 units

Step-by-step explanation:

Given: 16x^2 - 40x + 25

Reduce perfect square trinomial: (4x-5)(4x-5)

4x-5 is your side length. Since the perimeter of a square is 4s, then the perimeter is 4(4x-5)=16x-20

Using Heron's formula, the area of the porch is 294 squared feet

To calculate the area of the porch, we need to use Heron's formula which is given as;

Heron's formula is a mathematical formula used to calculate the area of a triangle when the lengths of all three sides are known. It is named after the ancient Greek mathematician Heron of Alexandria. The formula is:

Area = sqrt(s(s-a)(s-b)(s-c)),

where s is the semi-perimeter of the triangle (s = (a+b+c)/2) and a, b, and c are the lengths of the three sides.

Substituting the values into the formula;

s = (21 + 28 + 35) / 2

s = 84 / 2

s = 42

Using the value of s

A = √42(42 - 21)(42 - 28)(42 - 35)

A= 294

The area is 294 ft²

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Answer:

Step-by-step explanation:

it surprises me  you can't do these  yourself  :/  do you not understand percent's?  what makes this tough for you ?

1) y = 0.12x

2) y = 0.25x

3) y = 0.6x   ( repeating so the 6 has the line over it )

4) y = 0.833 ( repeating so the 3s has the line over them )

Answer:

8, 9, and 10

Step-by-step explanation:

see attachment

Answer:

Step-by-step explanation:

Victoria collects:

Javier collects:

They get same amount:

Answer:

the answer is 50

Step-by-step explanation:

the answer is 50 because lets say the the amount for a plain pizza is $12 that will be your inital value. 50 is your rate of change cause they price is add onto by 50 cents per topping.

Answer:

percent: a specified amount in or for every hundred.

example of percent:

For example, 1 percent of 1,000 chickens equals 1/100 of 1,000, or 10 chickens; 20 percent of the quantity is 20/100 1,000, or 200.

of example:We use of when we want to show that people or things relate to other things or people.

meaning of :expressing the relationship between a part and a whole.

meaning of what :asking for information specifying something.

example of what :What time are we going to leave tomorrow?

Step-by-step explanation:

The image with original and dilated values CP = 42 and CP' = 12 has the scale factor of option B: 2/7 ; reduction.

What is dilation?

Resizing an item uses a transition called dilation. Dilation is used to enlarge or contract the items. The result of this transformation is an image with the same shape as the original. However, there is a variation in the shape's size. The initial shape should be stretched or contracted during a dilatation.

The measurement of the original image is CP = 42

The measurement of the dilated image is CP' = 12

Let the unknown scale factor od dilation be x.

Then the equation for dilation will be -

Dilated image = original image × scale factor

Substitute the values into the equation -

CP' = CP × x

12 = 42x

x = 12/42

x = 2/7

Therefore, the image is dilated by a scale factor of 2/7.

Since, the size of the original image is greater than the size of dilated image, the dilation is a reduction.

Therefore, the dilation is a reduction.

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The cost of direct labor per unit is $5.628 per apple.

To calculate the cost of direct labor per unit, we need to determine the total labor hours required to produce one unit of output and then multiply it by the wage rate.

Let's denote the labor hours required for the first resource as "L₁" and the labor hours required for the second resource as "L₂".

The first resource has a capacity of 2.1 apples per hour, and the demand is 1.6 apples per hour. Therefore, the labor hours required for the first resource per unit of output are:

L₁ = 1 apple / (2.1 apples/hour) = 0.4762 hours/apple (rounded to 4 decimal places)

The second resource has a capacity of 4.4 apples per hour, and the demand is 1.6 apples per hour. Therefore, the labor hours required for the second resource per unit of output are:

L₂ = 1 apple / (4.4 apples/hour) = 0.2273 hours/apple (rounded to 4 decimal places)

Now, let's calculate the total labor hours required per unit:

Total labor hours per unit = L₁ (first resource) + L₂ (second resource)

= 0.4762 hours/apple + 0.2273 hours/apple

= 0.7035 hours/apple (rounded to 4 decimal places)

Finally, to calculate the cost of direct labor per unit, we multiply the total labor hours per unit by the wage rate:

Cost of direct labor per unit = Total labor hours per unit * Wage rate

= 0.7035 hours/apple * $8/hour

= $5.628 per apple (rounded to 3 decimal places)

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The area between two negative scores can be found by taking the absolute difference between the two scores.

The area between two negative scores can be found by taking the absolute difference between the two scores. This is because the absolute difference gives us the distance between the two scores without considering their signs.

To calculate the area between two negative scores, follow these steps:

1. Identify the two negative scores.
2. Subtract the smaller negative score from the larger negative score.
3. Take the absolute value of the result to remove the negative sign.
4. The absolute difference between the two negative scores represents the area between them.

For example, let's say we have two negative scores, -5 and -10. To find the area between them, we subtract -5 from -10, resulting in -10 - (-5) = -10 + 5 = -15. Since we are interested in the distance, we take the absolute value of -15, which gives us 15. Therefore, the area between -5 and -10 is 15.

The absolute difference between two negative scores gives us the area between them. This approach is applicable whenever we want to find the distance or area between any two numbers, not just negative scores.

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a) Rocky Mountain should order 200 tires each time it places an order.

b) The total cost of this policy is $17,160.

a) To determine how many tires Rocky Mountain should order each time, we need to consider the different price levels and find the point where it is most cost-effective to order. Let's analyze the three price levels:

If fewer than 200 tires are ordered: The purchase price is $25 per tire.

If 200 or more, but fewer than 8,000 tires are ordered: The purchase price is $17 per tire.

If 8,000 or more tires are ordered: The purchase price is $13 per tire.

Since the ordering cost is $35 per order, it is most cost-effective to order the maximum quantity that falls within the second price level, which is 200 tires.

b) To calculate the total cost of this policy, we need to consider the ordering cost and the holding cost. The holding cost is 40% of the purchase price per tire per year. Let's calculate the total cost:

Total holding cost = (Purchase price per tire * Quantity ordered * Holding cost rate) / 2 = (($17 * 10,000 * 0.4) / 2) + (($13 * 2,000 * 0.4) / 2) = $34,000 + $5,200 = $39,200

Total cost = Total ordering cost + Total holding cost = (Ordering cost per order * Number of orders) + Total holding cost = ($35 * (10,000 / 200)) + $39,200 = $1,750 + $39,200 = $40,950

Therefore, the total cost of this policy is $40,950.

Rocky Mountain Tire Center should order 200 tires each time it places an order, resulting in a total cost of $40,950 for this policy. This ordering quantity and cost analysis allows Rocky Mountain to make efficient and cost-effective decisions in managing their inventory.

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When raw scores from normal distribution are converted to standard scores, the resulting distribution has a mean equal to 0 and SD equal to 1.

A standard score (also known as a z-score) represents the number of standard deviations from the mean a data point is.

Standard scores, which are typically found for normally distributed data, are used in statistics to compare an observation to the population mean and standard deviation, and they can be used to identify how unusual or common a particular value is. The formula for calculating standard scores is as follows:

z = (X - μ) / σ

Where: X is the raw score

μ is the population mean

σ is the population standard deviation

For normally distributed data, the resulting distribution has a mean equal to 0 and a standard deviation (SD) equal to 1.

Therefore, when converting raw scores from a normal distribution to standard scores, one can find the number of standard deviations a score is above or below the mean of the distribution.

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Answer:

P = 37.4 m

Step-by-step explanation:

let the third side of the triangle be x

using Pythagoras' identity in the right triangle.

x² + 7² = 16²

x² + 49 = 256 ( subtract 49 from both sides )

x² = 207 ( take square root of both sides )

x = \(\sqrt{207}\) ≈ 14.4 m ( to 1 decimal place )

the perimeter (P) is then the sum of the 3 sides

P = 7 + 16 + 14.4 = 37.4 m

It will take approximately 39.532 days for $9500 to earn $800 at an annual interest rate of 8.25%.

To find the number of days it will take for $9500 to earn $800 at an annual interest rate of 8.25%, we need to use the formula for simple interest:

Interest = Principal * Rate * Time

In this case, we are given the interest ($800), the principal ($9500), and the annual interest rate (8.25%). We need to solve for time.

Let's denote the time in years as "t". Since we're looking for the number of days, we'll convert the time to a fraction of a year by dividing by 365 (assuming a standard 365-day year).

$800 = $9500 * 0.0825 * (t / 365)

Simplifying the equation:

800 = 9500 * 0.0825 * (t / 365)

Divide both sides by (9500 * 0.0825):

800 / (9500 * 0.0825) = t / 365

Simplify the left side:

800 / (9500 * 0.0825) ≈ 0.1083

Now, solve for t by multiplying both sides by 365:

0.1083 * 365 ≈ t

t ≈ 39.532

Therefore, it will take approximately 39.532 days for $9500 to earn $800 at an annual interest rate of 8.25%.

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The general solution will depend on the values of k, m, and the damping coefficient 8/m. To find the equation of motion for this system.

We can use Newton's second law:

F = ma

where F is the net force acting on the system, m is the mass of the object, and a is the acceleration.

The net force in this case is the sum of the external force and the force due to the spring:

F = f(t) - kx

where k is the spring constant and x is the displacement from equilibrium.

The damping force is given as 8 times the instantaneous velocity, which we can write as:

F_damp = -8v

where v is the velocity of the object.

Putting everything together, we get:

m(d^2x/dt^2) = f(t) - kx - 8v

Substituting in the given values, we have:

1(d^2x/dt^2) = 2 sin 4t - kx - 8(dx/dt)

To simplify this equation, we can use the fact that x is a displacement and therefore the second derivative of x with respect to time is the acceleration. So we can rewrite the equation as:

a = (2/g)sin(4t) - (k/m)x - 8v/m

where g = 32 ft/s^2 is the acceleration due to gravity.

To solve for x, we can use the fact that the velocity is the derivative of displacement with respect to time:

v = dx/dt

Taking the derivative of the equation for velocity, we get:

a = d^2x/dt^2 = dv/dt = d/dt(dx/dt) = d/dt(v) = d/dt(-8v/m - (k/m)x + 2/g sin(4t))

Simplifying this expression, we get:

a = -8/m(dv/dt) - k/m(dx/dt) + (8/g)cos(4t)

Substituting in the value of a from the previous equation, we have:

(2/g)sin(4t) - (k/m)x - 8v/m = -8/m(dv/dt) - k/m(dx/dt) + (8/g)cos(4t)

Rearranging and simplifying, we get:

d^2x/dt^2 + (k/m + 8/m)dx/dt + k/mx = (16/g)cos(4t) - (2/g)sin(4t)

This is a second-order differential equation that we can solve using standard techniques, such as the method of undetermined coefficients or Laplace transforms. The general solution will depend on the values of k, m, and the damping coefficient 8/m.

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Answer:

x=8

y=3

Step-by-step explanation:

the triangle on the right side is equilateral, therefore also equiangular, which means each angle is 60 degrees

that means that 4x-2 = 30;  4x = 32;  x = 8

also means that 7y+9 = 180-(90+60);  7y+9 = 30;  7y = 21;  y = 3

The Torque function is T(t) = 3sin((t-5)π/30).

When an engine exerts itself, torque, which is a twisting force, speaks to the rotational force of the engine and quantifies how much of that twisting force is accessible.

Given:

After 5 minutes Thomas ties it on, the torque is zero and increasing.

So, the sine function is shifted right 5 minutes.

and, The maximum value is 3.

Then, the multiplier of the sine function as the period is 60 minutes

Then, the coefficient of t = (2π/60)

                                         = π/30.

Hence, the Torque function is T(t) = 3sin((t-5)π/30).

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Answer:

see below

Step-by-step explanation:

add ALL angles together =360 & solve for x

net net 38x + 18 =360

x = 9

C = 15x-1 =15*9 -1 =134

The equation X/y = w/z satisfies the Dividendo Theorem.

The Dividendo Theorem, also known as the Proportional Division Theorem or the Constant Ratio Theorem, is a principle in mathematics that relates to ratios. According to the theorem, if two ratios are equal, then the ratios of their corresponding parts (dividendo) are also equal.

In the given equation X/y = w/z, we have two ratios on both sides of the equation. To determine if the equation satisfies the Dividendo Theorem, we need to compare the corresponding parts.

In this case, the corresponding parts are X and w, and y and z. If X/y = w/z, then we can conclude that the ratios of their corresponding parts are equal.

To understand why this is true, consider the concept of ratios. A ratio expresses the relationship between two quantities. When two ratios are equal, it means that the relationship between the corresponding quantities in each ratio is the same. In other words, the relative size or proportion of the quantities remains constant.

By applying the Dividendo Theorem to the equation X/y = w/z, we can determine that the ratios of X to y and w to z are equal. This implies that the relative sizes or proportions of X and y are the same as those of w and z.

Therefore, we can confidently say that the equation X/y = w/z satisfies the Dividendo Theorem.

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The total number of sides of a regular polygon with each exterior angle of measure 30 degrees is equal to 12.

Let us consider 'n' be the number of sides of the regular polygon.

Let 'y' be the measure of each of the exterior angle of regular polygon.

y = 30 degrees

Measure of each of the exterior angle of regular polygon 'y'

= ( 360° ) / n

⇒ n = ( 360° / y )

Substitute the value we get,

⇒ n = ( 360° / 30° )

⇒ n = 12

Therefore, the number of sides of a regular polygon with each of the exterior angle 30 degrees is equal to 12.

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The above question is incomplete, the complete question is:

How many sides does a regular polygon have when each exterior angle measures 30 degrees?

The evidence supports the researcher's belief that the homeownership rate in the neighborhood is higher than the state average.

To determine if the evidence supports the researcher's belief, we need to conduct a hypothesis test using the given data.

1. Set up the hypotheses:

- Null hypothesis (H0): The homeownership rate in the neighborhood is not higher than the state average. Symbolically, p ≥ 0.73.

- Alternative hypothesis (H1): The homeownership rate in the neighborhood is higher than the state average. Symbolically, p > 0.73.

2. Choose the significance level:

The significance level, denoted as α, is given as 0.05. This represents the probability of rejecting the null hypothesis when it is true.

3. Calculate the test statistic:

We will use the z-test for proportions to compare the sample proportion to the population proportion. The test statistic is calculated as:

z = (p - P) / √[(P * (1 - P)) / n]

where p is the sample proportion, P is the population proportion, and n is the sample size.

In this case, p = 150/190 = 0.789 is the sample proportion, P = 0.73 is the population proportion, and n = 190 is the sample size.

4. Determine the critical value:

Since the alternative hypothesis is one-sided (p > 0.73), we need to find the critical value corresponding to the given significance level. At α = 0.05, the critical value is approximately 1.645.

5. Make a decision:

If the test statistic (z) is greater than the critical value (1.645), we reject the null hypothesis in favor of the alternative hypothesis. Otherwise, we fail to reject the null hypothesis.

Calculating the test statistic, we have:

z = (0.789 - 0.73) / √[(0.73 * (1 - 0.73)) / 190] ≈ 3.282

Since the calculated test statistic (3.282) is greater than the critical value (1.645), we reject the null hypothesis. Therefore, the evidence supports the researcher's belief that the homeownership rate in the neighborhood is higher than the state average.

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a) The 90% confidence interval for the population proportion is approximately (0.7777, 0.8423).

b) The 95% confidence interval for the population proportion is approximately (0.7737, 0.8463).

To calculate the confidence intervals for the population proportion, we can use the formula:

Confidence Interval = sample proportion ± margin of error

The margin of error can be calculated using the formula:

Margin of Error = critical value * standard error

where the critical value is determined based on the desired confidence level and the standard error is calculated as:

Standard Error = \(\sqrt{((p * (1 - p)) / n)}\)

Given that the sample proportion (p) is 0.81 and the sample size (n) is 500, we can calculate the confidence intervals.

a. 90% Confidence Interval:

To find the critical value for a 90% confidence interval, we need to determine the z-score associated with the desired confidence level. The z-score can be found using a standard normal distribution table or calculator. For a 90% confidence level, the critical value is approximately 1.645.

Margin of Error = \(1.645 * \sqrt{(0.81 * (1 - 0.81)) / 500)}\)

≈ 0.0323

Confidence Interval = 0.81 ± 0.0323

≈ (0.7777, 0.8423)

Therefore, the 90% confidence interval for the population proportion is approximately (0.7777, 0.8423).

b. 95% Confidence Interval:

For a 95% confidence level, the critical value is approximately 1.96.

Margin of Error = \(1.96 * \sqrt{(0.81 * (1 - 0.81)) / 500)}\)

≈ 0.0363

Confidence Interval = 0.81 ± 0.0363

≈ (0.7737, 0.8463)

Thus, the 95% confidence interval for the population proportion is approximately (0.7737, 0.8463).

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Answer:

The diagram shows measures of some of the line segments in APQR. 4.5 /62.58° Q Length of QS P Area of APQR S ㅏ Use the given information to find the measures of the unknown angles and segment shown below. Round your answers to the nearest whole number. Length of PS units 6.4 -5.0- units R units²The diagram shows measures of some of the line segments in APQR. 4.5 /62.58° Q Length of QS P Area of APQR S ㅏ Use the given information to find the measures of the unknown angles and segment shown below. Round your answers to the nearest whole number. Length of PS units 6.4 -5.0- units R units²The diagram shows measures of some of the line segments in APQR. 4.5 /62.58° Q Length of QS P Area of APQR S ㅏ Use the given information to find the measures of the unknown angles and segment shown below. Round your answers to the nearest whole number. Length of PS units 6.4 -5.0- units R units²The diagram shows measures of some of the line segments in APQR. 4.5 /62.58° Q Length of QS P Area of APQR S ㅏ Use the given information to find the measures of the unknown angles and segment shown below. Round your answers to the nearest whole number. Length of PS units 6.4 -5.0- units R units²The diagram shows measures of some of the line segments in APQR. 4.5 /62.58° Q Length of QS P Area of APQR S ㅏ Use the given information to find the measures of the unknown angles and segment shown below. Round your answers to the nearest whole number. Length of PS units 6.4 -5.0- units R units²vvvThe diagram shows measures of some of the line segments in APQR. 4.5 /62.58° Q Length of QS P Area of APQR S ㅏ Use the given information to find the measures of the unknown angles and segment shown below. Round your answers to the nearest whole number. Length of PS units 6.4 -5.0- units R units²The diagram shows measures of some of the line segments in APQR. 4.5 /62.58° Q Length of QS P Area of APQR S ㅏ Use the given information to find the measures of the unknown angles and segment shown below. Round your answers to the nearest whole number. Length of PS units 6.4 -5.0- units R units²The diagram shows measures of some of the line segments in APQR. 4.5 /62.58° Q Length of QS P Area of APQR S ㅏ Use the given information to find the measures of the unknown angles and segment shown below. Round your answers to the nearest whole number. Length of PS units 6.4 -5.0- units R units²The diagram shows measures of some of the line segments in APQR. 4.5 /62.58° Q Length of QS P Area of APQR S ㅏ Use the given information to find the measures of the unknown angles and segment shown below. Round your answers to the nearest whole number. Length of PS units 6.4 -5.0- units R units²v

Step-by-step explanation:

its E and A

Answer:

The solutions to the inequality are B, E, and F: 25, 36, and 9.

Step-by-step explanation:

The solutions to the inequality √x < 10 are the values of x that make the inequality true when plugged in. To find these values, we can square both sides of the inequality:

√x < 10

x < 10^2 = 100

So, the values of x that make the inequality true are those that are less than 100. The options that satisfy this condition are:

A. 100 (not a solution)

B. 25 (solution)

C. -100 (not a solution)

D. 105 (not a solution)

E. 36 (solution)

F. 9 (solution)

The function is decreasing, the function's values should decrease as well.

The function is not given in the question so I cannot provide specific information about the function.

However, I can explain how to determine whether a function is increasing or decreasing on a given interval.

On a given interval, if the function's values increase as x increases, then the function is increasing on that interval.

If the function's values decrease as x increases, then the function is decreasing on that interval.

In the interval\(\([-2,-1]\),\) the values of x decrease as you move from left to right.

Therefore, if the function is increasing, the function's values should increase as well.

If the function is decreasing, the function's values should decrease as well.

On the interval \(\([0.5,1]\)\), the values of x increase as you move from left to right.

Therefore, if the function is increasing, the function's values should increase as well.

If the function is decreasing, the function's values should decrease as well.

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1254 Revolutions of the wheel will it take to travel 1,200 meters. Hence, the correct option is (d) 1,254 revolutions.

Given information:

Diameter of a child's bicycle wheel = 12 inches Circumference of the wheel = diameter × π≈ 12 × 3.14 = 37.68 inches ≈ 37.7 inches distance traveled = 1,200 m = 1,200 × 39.3701 inches (since 1 meter ≈ 39.3701 inches) = 47244 inchesTo find: Approximately how many revolutions of the wheel will it take to travel 1,200 meters?

Formula: Total distance travelled = a number of revolutions × circumference of the wheel Number of revolutions = total distance traveled ÷ circumference of the wheel Calculation: Substitute the given values in the above formula Number of revolutions = 47244 ÷ 37.7 ≈ 1254

So, approximately 1254 revolutions of the wheel will it take to travel 1,200 meters. Hence, the correct option is (d) 1,254 revolutions.

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Answer: "add by>" ; "65>" ; "go" im pretty sure

Step-by-step explanation:

my brain