how many quarters make 40 dollars


can you work it out with quarters
help me please help me please help me please​

Answer:

m+7

Step-by-step explanation:

If she ran 7 minutes longer and m represents the amount of time she ran, then it would just be addition.

Let's say m=60 minutes. She would've ran for 67 minutes, which is also m+7.

Answer:

it is b :) on edge

Step-by-step explanation:

Answer:

b

Step-by-step explanation:

took the test

Answer:

what do you need help with?

The combination that is not a valid proposed set of quantum numbers is b.

The valid range of values for the quantum numbers are:
- n can be any positive integer (1, 2, 3, ... )
- l can be any integer from 0 to n-1
- ml can be any integer from -l to +l
- ms can be either +1/2 or -1/2
The valid ranges for each quantum number are as follows:

n (principal quantum number): Any positive integer

l (azimuthal quantum number): 0 to (n - 1)

ml (magnetic quantum number): -l to l

ms (spin quantum number): -1/2 or 1/2

Let's check each proposed set of quantum numbers:

a. 3; 2; 1; -1/2 - This set is valid. The values for n, l, ml, and ms are within the valid ranges.

b. 4; 3; 3; 1/2 - This set is not valid. The value of l (azimuthal quantum number) cannot be greater than n - 1. In this case, l is 3, which is greater than n - 1 (4 - 1 = 3). Therefore, this set is not valid.

c. 1; 0; 0; -1/2 - This set is valid. The values for n, l, ml, and ms are within the valid ranges.

d. 2; 0; 0; 1/2 - This set is valid. The values for n, l, ml, and ms are within the valid ranges.

e. 2; 0; 1; 1/2 - This set is valid. The values for n, l, ml, and ms are within the valid ranges.
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Answer:

it’s between 7 and 8

Step-by-step explanation:

if that doesn’t help sorry I tried

Answer:

  y +3 = 5(x +2)

Step-by-step explanation:

You want the equation of a line with slope 5 through the point (-2, -3).

The point-slope form of the equation for a line is ...

  y -k = m(x -h) . . . . . . line with slope m through point (h, k)

  y +3 = 5(x +2) . . . . . . line with slope 5 through point (-2, -3)

__

Additional comment

This can also be written as ...

  y = 5x +7 . . . . . . . . . subtract 3 and simplify

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To find the work done in pumping the entire contents of the fuel tank into the tractor, we need to calculate the potential energy difference between the initial position of the gasoline in the truck's tank and its final position in the tractor's tank.

Given:

- Diameter of the cylindrical gasoline tank: 4 feet

- Length of the cylindrical gasoline tank: 5 feet

- Opening on the tractor tank is 5 feet above the top of the tank in the truck

First, let's calculate the volume of the cylindrical gasoline tank using the formula for the volume of a cylinder:

Volume = π * (radius^2) * height

The radius of the tank is half the diameter, so the radius is 4 feet / 2 = 2 feet.

Volume = π * (2^2) * 5 = 20π cubic feet

Since the entire contents of the fuel tank need to be pumped, the volume of gasoline to be pumped is 20π cubic feet.

To calculate the work done in pumping the gasoline, we need to find the vertical height through which the gasoline is lifted. This height is the sum of the height of the tank and the distance between the top of the tank and the opening on the tractor tank.

Height = 5 feet + 5 feet = 10 feet

The work done in pumping the gasoline can be calculated using the formula:

Work = Force × Distance

In this case, the force is the weight of the gasoline, and the distance is the height through which it is lifted. To calculate the weight of the gasoline, we need to know the density of gasoline. The density of gasoline can vary, but an average value is around 6.3 pounds per gallon.

Let's convert the volume of gasoline from cubic feet to gallons:

1 cubic foot = 7.48052 gallons (approximately)

Volume in gallons = 20π * 7.48052 ≈ 149.61π gallons

Weight of gasoline = Volume in gallons * Density of gasoline

Assuming the density of gasoline as 6.3 pounds per gallon:

Weight of gasoline = 149.61π * 6.3 ≈ 940.06π pounds

Finally, we can calculate the work done:

Work = Weight of gasoline * Height

Work = 940.06π * 10 ≈ 9400.6π foot-pounds

Therefore, the work done in pumping the entire contents of the fuel tank into the tractor is approximately 9400.6π foot-pounds.

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To determine if one roll of 144 inches of tape is enough to outline each parallelogram shaped stripes, the total length required to outline all three stripes would be 3 times that value, which is 6l + 6h.

Since the hazard sign has three identical parallelogram-shaped stripes, we can assume that each stripe has the same dimensions. Let's denote the length of each side of the parallelogram as "l" and the height as "h". To outline the stripe, we need to measure the perimeter of the parallelogram.

The perimeter of a parallelogram can be calculated by summing the lengths of all four sides. In this case, since we only need to outline the straight stripes, we will consider two sides of each stripe.

The total length required to outline one stripe is given by 2l + 2h. Since all three stripes are identical, the total length required to outline all three stripes would be 3 times that value, which is 6l + 6h.

To determine if one roll of 144 inches of tape is enough, we need to compare this total length requirement with the length of tape available. If 6l + 6h is less than or equal to 144 inches, then one roll of tape is enough to finish the job. Otherwise, additional tape would be needed.

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Answer: 363.333333

Step-by-step explanation:

The division of the number 1,090 by 3 will be 363.33.

Given that:

Numbers, 1,090 and 3

Division means separating something into different parts, sharing something among other people, places, etc.

The division of the number 1,090 by 3 is calculated as,

⇒ 1,090 / 3

⇒ 363.33

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Answer:

The length is 15.71 feet.

Step-by-step explanation:

Considering the given stem-and-leaf plot for the distribution, it is found that:

a. The shape of each data-set is:

b. Due to the skewed distribution, the best measure is the median, and Wyatt is not correct.

c. Since all the values are within 1.5IQR of the first and of the third quartile, there are no outliers in the distribution and Wyatt is correct.

The plot lists all the measures in the data-set, following the format of the key, as follows:

4|5 = 45.

Hence, the Junior measures are:

112, 121, 125, 132, 134, 135, 146, 156, 195, 200.

The Senior measures are:

123, 166, 172, 175, 183, 186, 191, 194, 197, 201.

To classify the shape of the distribution, we need to find the mean and the median.

For the Juniors, these measures are given as follows:

As the mean is greater than the median, the distribution is skewed to the right.

For the Seniors, these measures are given as follows:

As the median is greater than the mean, the distribution is skewed to the left.

For item b, in skewed distributions we should use the median as the measure of center, hence Wyatt is not correct.

For item c, the quartiles of the Junior's data-set is given by:

Hence the interquartile range IQR is given by:

175.5 - 123 = 52.5.

Then the bounds of non-outlier values are given by:

All the measures are in this range, hence there are no outliers.

The plot is given by the image at the end of the answer.

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The estimated regression equation provided is û = 18 + 3.6x1 - 2.02 + 7.523 + 2.934, based on 30 observations. The values of SST (Total Sum of Squares) and SSR (Regression Sum of Squares) are given as 1,803 and 1,762, respectively. The task is to compute R² and R, and then comment on the goodness of fit of the regression model.

In part (a), R² (R-squared) is computed by dividing SSR (Regression Sum of Squares) by SST (Total Sum of Squares). R² represents the proportion of the total variation in the dependent variable (û) that is explained by the independent variables (x1, x2, x3). It provides an indication of how well the regression model fits the data. The calculated R² value is typically between 0 and 1, where a higher value indicates a better fit. The result is rounded to three decimal places.

In part (b), R (Adjusted R-squared) is computed by adjusting R² for the number of independent variables and the sample size. R takes into account the degrees of freedom and penalizes models with a large number of variables. It is a more appropriate measure when comparing models with a different number of independent variables. The computed R value is rounded to three decimal places.

In part (c), the goodness of fit is commented based on the calculated R² and R values. A higher R² indicates a better fit, suggesting that the independent variables in the regression equation explain a larger proportion of the variability in the dependent variable. Similarly, a higher R indicates a better fit, considering the number of variables and sample size. The goodness of fit can be assessed by comparing the R² and R values to a predetermined threshold or by comparing them to those obtained from alternative models. A higher R² and R imply a stronger relationship between the independent and dependent variables, indicating a better fit of the regression model to the data.

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Answer:

32 because 8×4=32 that's why 33is the answer

Answer: 4

Step-by-step explanation:

:)

Answer:

Multiply the denominator of the fractional part by the whole number, and add the result to the numerator.

Step-by-step explanation:

You can add or subtract mixed numbers by turning them to improper fractions first. Improper fractions are fractions where the numerator is greater than the denominator.

Answer:

r=8

Step-by-step explanation:

45=6r-3

48=6r

r=8

Answer:

in fraction form it is X= 1/3

in decimal form it is X= 0.3 rep.

Step-by-step explanation:

Answer:

(A) Linear positive association

Step-by-step explanation:

Hope it helps you in your learning process.

Answer:

magnitude of √61 and a direction angle equal to approximately 40°

Step-by-step explanation:

I inserted the x,y axis into a vector calculator to get the magnitude and angle :D

The magnitude of the vector is √61 and the direction of the angle is 40 degrees option (C) magnitude of √61 and a direction angle equal to approximately 40° is correct.

It is defined as the quantity that has magnitude as well as direction also the vector always follows the sum triangle law.

We have a vector shown in the picture.

The coordinate of the vector are:

The tail coordinate = (0, 0)

The head coordinate = (6, 5)

We can find the magnitude of the vector using the distance formula:

The distance formula can be given as:

\(\rm M=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}\)

\(\rm M=\sqrt{(6-0)^2+(5-0)^2}\)

M = √61

The direction of the angle:

tanA = 5/6

tanA = 0.8333

A =39.80 ≈ 40 degrees

Thus, the magnitude of the vector is √61 and the direction of the angle is 40 degrees option (C) magnitude of √61 and a direction angle equal to approximately 40° is correct.

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The sample mean for 100 pell grant recipients is more likely to be within $80 of $2,600 for State A, given the relatively smaller population size and the use of the t-distribution.

To compare the two states, we need to calculate the probability of the sample mean for 100 pell grant recipients being within $80 of $2,600 for each state.

For State A, with only 4,000 pell grant recipients, the sample size of 100 is relatively large, but not enough to use the normal distribution. Therefore, we need to use the t-distribution, which has fatter tails than the normal distribution, making it more likely to produce extreme values. This means that the probability of the sample mean for 100 pell grant recipients being within $80 of $2,600 is higher for State A than for State B.

For State B, with a larger population of 200,000 pell grant recipients, the sample size of 100 is a small fraction of the population, allowing us to use the normal distribution. However, as the distribution is narrower than the t-distribution, the probability of the sample mean for 100 pell grant recipients being within $80 of $2,600 is lower for State B than for State A.

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The error in this solution is a computational error.

How to solve and what is computational error?

To solve the problem, the student correctly set up the inequality 3.5x ≤ 21, where x is the cost of the games. However, when they divided both sides of the inequality by 3.5, they made a mistake.

Dividing both sides by 3.5 gives:

x ≤ 6

So the correct solution is that the most Wellington can spend on games is $6.

The mistake the student made was in writing 3.5 next to x instead of dividing both sides of the inequality by 3.5. This is a common mistake when solving inequalities, especially when working with decimals or fractions. It's important to remember to perform the same operation on both sides of the inequality when solving it.

A computational error is a mistake made during a mathematical calculation or computation. It can occur due to various reasons such as miscalculation, incorrect use of formulas, misreading of numbers or symbols, or simply a typo.

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To prove that if $S = \{v_1, v_2, \ldots, v_n\}$ is a basis for a vector space $V$ and $c$ is a nonzero scalar, then the set $S_1 = \{cv_1, cv_2, \ldots, cv_n\}$ is also a basis for $V$, we need to show two things:

1. $S_1$ spans $V$: Every vector in $V$ can be expressed as a linear combination of vectors in $S_1$.

2. $S_1$ is linearly independent: The only way to obtain the zero vector by forming a linear combination of vectors in $S_1$ is by setting all the scalars to zero.

Proof:

1. $S_1$ spans $V$:

Let $v$ be an arbitrary vector in $V$. Since $S$ is a basis for $V$, $v$ can be expressed as a linear combination of vectors in $S$. Therefore, there exist scalars $a_1, a_2, \ldots, a_n$ such that:

\(\sf\:v = a_1v_1 + a_2v_2 + \ldots + a_nv_n \\\)

Now, consider the vector $cv$:

\(\sf\:cv = c(a_1v_1 + a_2v_2 + \ldots + a_nv_n) = a_1(cv_1) + a_2(cv_2) + \ldots + a_n(cv_n) \\\)

Thus, $cv$ can be expressed as a linear combination of vectors in $S_1$. This shows that $S_1$ spans $V$.

2. $S_1$ is linearly independent:

To show that $S_1$ is linearly independent, we need to prove that the only solution to the equation:

\(\sf\:x_1(cv_1) + x_2(cv_2) + \ldots + x_n(cv_n) = 0 \\\)

is $x_1 = x_2 = \ldots = x_n = 0$. Suppose there exists a nontrivial solution to the equation, where at least one $x_i$ is nonzero. Without loss of generality, assume $x_1 \neq 0$. Then we have:

\(\sf\:x_1(cv_1) + x_2(cv_2) + \ldots + x_n(cv_n) = x_1(cv_1) + 0 + \ldots + 0 = cx_1v_1 \\\)

Since $c$ is a nonzero scalar, and $x_1 \neq 0$, we have $cx_1v_1 \neq 0$. However, the equation states that the left side is equal to $0$, which contradicts the assumption. Therefore, the only solution to the equation is $x_1 = x_2 = \ldots = x_n = 0$, confirming that $S_1$ is linearly independent.

Based on the above proofs, we can conclude that if $S = \{v_1, v_2, \ldots, v_n\}$ is a basis for a vector space $V$ and $c$ is a nonzero scalar, then the set $S_1 = \{cv_1, cv_2, \ldots, cv_n\}$ is also a basis for $V$.

The Edit Distance Algorithm is an important concept in computer science. The algorithm compares two strings and finds the minimum number of operations (insertions, deletions, and substitutions) that are required to transform one string into the other.

Below is the solution to the given question:

X = (B, A, N, A, N, A)      

Y = (P, A, N, D, O, R, A)

Table to compute Edit Distance:

P A N D O R A 0 1 2 3 4 5 6 B 1 1 2 3 4 5 6 A 2 1 2 3 4 5 6 N 3 2 1 2 3 4 5 A 4 3 2 3 4 5 6 N 5 4 3 2 3 4 5 A 6 5 4 3 4 5 4

The table shown above contains the minimum number of operations required to transform one string into the other. The top row represents string Y, and the left column represents string X. The table is filled using the following formula: If the characters at the current position are the same, then the value is taken from the diagonal element. (In this case, no operation is required.)

If the characters are different, then the value is taken from the minimum of the three elements to the left, above, and diagonal to the current element. (In this case, the operation that produces the minimum value is chosen.)

From the table above, the optimal solution can be found by tracing back the path that produced the minimum value. Starting from the bottom right corner, the path that produces the minimum value is:

A  -> R (Substitution)

O -> O (No operation)

D -> N (Substitution)

N -> A (Substitution)

A -> A (No operation)

P -> B (Substitution)

Therefore, the optimal solution is to substitute A with N, N with D, A with N, and P with B. So, (B, A, N, A, N, A) can be transformed into (P, A, N, D, O, R, A) using four operations.

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Answer:

x=(k-14)/5

Step-by-step explanation:

subtract 14 to get

5x=k-14

Then divide by 5 to get

x=(k-14)/5

:D

Answer:

x = (k-14)/5

Step-by-step explanation:

5x + 14 = k

Subtract 14 from each side

5x + 14-14 = k-14

5x = k-14

Divide by 5

5x/5 = (k-14)/5

x = (k-14)/5

Answer: \(\frac{3}{20}\)

Step-by-step explanation:

Given

Norberto has \(\frac{9}{10}\) of a pizza

It is to be divided among 6 people

To distribute equally among the 6 people, divide the fraction by 6 i.e.

\(\Rightarrow \dfrac{\dfrac{9}{10}}{6}\\\\\Rightarrow \dfrac{9}{6\times 10}\\\\\Rightarrow \dfrac{3}{2\times 10}\\\\\Rightarrow \dfrac{3}{20}\ \text{of a pizza}\)

So, each person will get  \(\frac{3}{20}\) of a pizza.

Answer:

Total cost \(=200+50t\)

Step-by-step explanation:

Given:

A cell phone plan costs`$200` to start.

Also, there is a `$50` charge each month.

To find: total cost (start up fee and monthly charge) to use the cell

Solution:

Start up fee = $200

Monthly charge = $50

Let \(t\) denotes number of months.

Total cost (start up fee and monthly charge) to use the cell \(=200+50t\)

Answer:

72 cubes

Step-by-step explanation:

One face of the cube has 12 cubes. A cube has 6 faces, 12 × 6 = 72. (12 cubes × 6 faces = 72 cubes)

Answer:

-----------------

Find each area and then find their difference.

The difference is: