A cleaning company charges $3 per square foot and a flat fee of $100. Which of the equations below shows the cost y, in dollars, of cleaning a patio that is x square foot? Hint: find the key words and corresponding amounts for "m" and "b."​

To optimize his long-term predicted profit percentage, he should select 20.567%.

Both decimal and fractional forms of the expression are acceptable.

Given, The boat's daily running expense is $2,250.

$1.50 is the minimal amount.

a maximum of $5.50

Most likely value is $3.50. Now, each day's conclusion.

More lobsters mean a lower price per pound which the grocery shop will accept ($3.85 - $0.0005). × y,

Amir's daily haul of lobster has a normally distributed with a mean of 1,500 pounds and a standard deviation of 12,500 pounds.

He should therefore select 20.567% to increase his anticipated profit in the long run.

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Answer:

(2.5,3.5)

Step-by-step explanation:

Answer:

(2.5, 3.5)

Step-by-step explanation:

Two independent variables that can affect the cost of the supplies are:

An independent variable is a variable that can change freely.

For example in the given situation, we could define the independent variables:

Notice that these variables are independent because these don't depend on each other.

Then if each pencil costs A, and each notebook costs B, the cost function will be:

C(x, y) = A*x + B*y

So there you have two independent variables that affect the cost of the supplies.

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Answer:

5

Step-by-step explanation:

3 squared + 4 squared = c squared

3 squared= 9   4 squared= 16

9+16=c squared

25=c squared

5= c

Answer:

5.76106287

Step-by-step explanation:

Answer: 5.76106287488

Step-by-step explanation:

Answer:

Step-by-step explanation:

oop-cheating on a testtt. '-'

Ile give u a hint.

It says "Determine how many miles she swam."

And we already know how many kilometers she swam and how much a mile is. So what operation do we need to get from Kilometers to miles?

You got this!

Hope this helps :)

Still confused Ile try to help.

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You should survey at least 97 families in order to estimate the mean family income in the rural area of Florida with a margin of error of $1,000 and an expected standard deviation of $5,000, assuming a 95% confidence level.

To determine the sample size required for the survey, we need to consider the desired margin of error, the expected standard deviation, and the desired level of confidence. In this case, you mentioned that the margin of error should be within $1,000 and the expected standard deviation is $5,000. However, you didn't mention the desired level of confidence.

Typically, a 95% confidence level is used, which means we want to be 95% confident that the true mean family income falls within the margin of error. Based on this assumption, we can calculate the required sample size using the following formula:

n = (Z^2 * σ^2) / E^2

n = required sample size

Z = Z-score corresponding to the desired confidence level

σ = standard deviation

E = margin of error

For a 95% confidence level, the Z-score is approximately 1.96 (assuming a normal distribution).

Substituting the values into the formula, we get:

n = (1.96^2 * 5000^2) / 1000^2

n ≈ (3.8416 * 25,000,000) / 1,000,000

n ≈ 96,040,000 / 1,000,000

n ≈ 96.04

Since you cannot have a fraction of a family, you would need to round up the sample size to the nearest whole number. Therefore, you should survey at least 97 families and an expected standard deviation of $5,000, assuming a 95% confidence level.

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Answer:

5

Step-by-step explanation:

50  by divded 5 is 10 90 divided by 5 is 18 and 110 divded  by 5 is 22 hope this helps!

Answer:

Media = 8.73

Moda = 9.0

Mediana = 9.0

Step-by-step explanation:

En este caso, vamos a repasar primero el concepto de cada uno:

Media: Se refiere a un promedio numérico de varios datos en una medida. Se calcula como la sumatoria de todos los valores numéricos dividido entre la cantidad de valores existentes,

Moda: Se refiere al valor numérico que mas se repite en una secuencia numérica.

Mediana: Se refiere al número, o números, que se encuentran justo en la mitad de una secuencia numérica ordenada de menor a mayor o de mayor a menor.

Tomando en cuenta estos conceptos, determinemos cada uno de ellos. Son 15 calificaciones. Si las ordenamos todas de menor a mayor tenemos:

7.0, 8.0, 8.0, 8.0, 8.0, 9.0, 9.0, 9.0, 9.0, 9.0, 9.0, 9.0, 9.0, 10.0, 10.0

Para la media:

Media = 7 + (8+8+8+8) + (9+9+9+9+9+9+9+9) + (10+10) / 15

Para la moda:

Como se puede observar, la calificación 9.0 se repitió 8 veces por lo tanto

Para la mediana:

Al observar los datos ordenados de mayor a menor, nos damos cuenta que la calificación 9.0 se encuentra en la mitad de esos datos, asi que

Espero te ayude.

The value that is added on the left-hand side to make the equation equal is -1/100.

In mathematics, an expression is a group of numbers and operations. The components of a mathematical expression that perform an operation are as follows: multiplication, division, addition, and subtraction.

Given [1/-2  - 3/4  of -8/15],

to add a number so the sum equals the product of -7/50 and 11/14

let the number be x

according to the question,

[1/-2  - 3/4  of -8/15] + x = -7/50*11/14

taking LHS

[1/-2  - 3/4  of -8/15] = -1/2 - (3(-8)/60)

[1/-2  - 3/4  of -8/15] = -1/2 + 24/60

[1/-2  - 3/4  of -8/15] = (-30 + 24)/60

[1/-2  - 3/4  of -8/15] =-6/60 = -1/10

RHS

-7/50*11/14 = -77/700 = -11/100

substitute the values

[1/-2  - 3/4  of -8/15] + x = -7/50*11/14

-1/10 + x = -11/100

x = -11/100 + 1/10

x = (-11 + 10)/100

x = -1/100

Hence -1/100 is added to make the equation equal.

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Answer:

75km

Step-by-step explanation:

Answer:

1

Step-by-step explanation:

The factors of 87 are 87, 29, 3, 1.

The factors of 47 are 47, 1.

The common factors of 87 and 47 are 1, intersecting the two sets above.

In the intersection factors of 87 ∩ factors of 47 the greatest element is (1).

The fee charged for the R 2, 500 withdrawal from TownBank would be R 33. 30.

To find the total fee charged to withdraw the sum of R 2, 500 from TownBank, the formula is :

= 3. 30 + R 1, 20 per R 100

The amount withdrawn was R 2, 500 so the total fee charged would be :

= 3. 30 + 1, 20 x ( 2, 500 / 100 )

= 3. 30 + 1. 20 x 25

= 3. 30 + 30

= 33. 30

= R 33. 30

In conclusion, the total fee charged was R 33. 30.

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First part of the question :

The TownBank current account charges R3,30 plus R1,20 per R100 or part thereof for a cash withdrawal from a TownBank ATM. The first five withdrawals in a month are free. Determine the bank charges for a withdrawal of:

When x does not have full rank, it means that the columns of x are not linearly independent. This means that there exists a non-zero vector b such that xb = 0. Let's see why px = x when this is the case.

First, let's recall what the projection matrix p is. The projection matrix p is defined as p = x(xTx)-1xT. This matrix projects any vector onto the column space of x.

Now, let's see what happens when we multiply px:
px = x(xTx)-1xTx
Since xTx is a scalar, we can write this as:
px = x(xTx)-1(xTx)
px = x

So we can see that px = x when x does not have full rank. This is because the projection matrix p projects any vector onto the column space of x, and when x does not have full rank, the column space of x is the same as the column space of px.

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The area of John's field is 2831.25 square yards.

John has a rectangular-shaped field with a length of 62.5 yards and a width of 45.3 yards. To find the area of a rectangle, you multiply the length by the width. Therefore, the area of John's field is 62.5 yards x 45.3 yards = 2831.25 square yards.

In 150 words, John's rectangular field has an area of 2831.25 square yards. To calculate the area of a rectangle, you multiply the length by the width.

Given that the length is 62.5 yards and the width is 45.3 yards, the formula for the area is length x width. Substituting the values, the calculation is 62.5 yards x 45.3 yards = 2831.25 square yards.

Thus, the area of John's field is 2831.25 square yards.

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Plot the points (0, -20) and (10, 5) on a graph, and draw a line connecting them to represent the gross sales function S(x) = -20 + 2.5x.

To draw the graph of the gross sales function S(x) = -20 + 2.5x, we need to plot two points: the S-intercept and another point.

First, let's find the S-intercept. The S-intercept is the value of S when x = 0. Substituting x = 0 into the function, we get:

S(0) = -20 + 2.5(0) = -20

So the S-intercept is -20, which means that when the production facility produces 0 curtains, they will not make any sales.

Now, let's find another point. We can choose any value of x and calculate the corresponding value of S. Let's choose x = 8 (you can choose any other value if you prefer). Substituting x = 8 into the function, we get:

S(8) = -20 + 2.5(8) = 0

So when the production facility produces 8 curtains, their gross sales will be $0. This means that the break-even point is at x = 8, where the revenue from selling the curtains covers the production costs.

To plot the graph, we can use these two points: the S-intercept (-20, 0) and the point (8, 0). The graph should look like this:

```
        |
        |
        |
        |         *
        |      *
        |   *
        |*_______
        0   8    x-axis
              S-axis
```

The x-axis represents the number of curtains produced, and the S-axis represents the gross sales in hundreds of dollars. The graph shows that the gross sales function is a linear function that increases as the number of curtains produced increases. The break-even point is at x = 8, and after that, the production facility starts making a profit.

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Answer:

A. number of days it rains in a year

Step-by-step explanation:

A. number of days it rains in a year - discrete

B. height of the grass in a nature preserve each year-continuous

C. amount of rainfall in a year-continuous

D. level of water in a rain barrel-continuous

The number of days can only be an integer and therefore is discrete data

The measure of angle 3, 4 and 5 from the given figure are 36°, 72° and 72° respectively.

From the given figure,

50°+65°+x=180° (By angle sum of property of a triangle)

115°+x=180°

x=180°-115°

x=65°

∠2=65° (Vertically opposite angles)

140°+y=180° (Sum of adjacent angles is 180°)

y=40°

Now, 40°+68°+∠5=180°

108°+∠5=180°

∠5=180°-108°

∠5=72°

∠4=∠5=72° (Vertically opposite angles)

∠3+∠4+∠5=180°

∠3+72°+72°=180°

∠3+144°=180°

∠3=36°

Therefore, the measure of angle 3, 4 and 5 from the given figure are 36°, 72° and 72° respectively.

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a) \(6x^2−x^3=12+5x;x=4\) For verifying that the given values of x solve the corresponding polynomial equations, we have to substitute the given values of x in the equation. x = 3 does not solve the equation.Hence, both the given values of x do not solve the corresponding polynomial equations.

If we get true equations, it means the given values of x solve the corresponding polynomial equations. Now, we will put the value of x in the equationa)\(6x^2−x^3=12+5xPut x = 46(4)^2 - (4)^3 = 12 + 5(4)64 - 64 ≠ 32\)

Thus, x = 4 does not solve the equationb)

\(9x^2 − 4x = 2x^3 + 15; x = 3Put x = 39(3)^2 - 4(3) = 2(3)^3 + 153(27) - 12 ≠ 45\)

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the answer is 60

Step-by-step explanation:

10+5=15 x 3 45+ 15 =60

Answer:

V = 10.5 ft³

Step-by-step explanation:

Volume formula: length x width x height

We are given all 3, so all we have to do is multiply them all together, When we plug it into the calc, we should get 21/2 or 10.5 ft³ as our answer.

The wholesale cost $423

The merchant increases the wholesale cost by 35%

The washer sells it for $571.05

The wholesale cost can be calculated as follows

y + 35/100= 571.05

y + 0.35= 571.05

1.35y= 571.05

y= 571.05/1.35

y= 423

Hence the wholesale cost is $423

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Answer: -16

Step-by-step explanation: The answer is -16 because you are looking for the median and you sort it out first:

-16.3, -16.1, -15.9, -15.7 cross them out and you should have -16.1 and -15.9 remaining. Add them (-32) then divide by 2. Then you should get -16. You’re welcome.

Answer:

10

Step-by-step explanation:

2(x+9)+142=180       corresponding angles are equal and angles on a straight line=180

2(x+9)=180-142

x+9=38/2

x=19-9

x=10

$7.50

The expected amount paid to the player is $7.50. This is calculated by taking the probability of each outcome multiplied by the amount paid for that outcome, and then summing them all together. The probabilities are as follows:

The expected amount paid is therefore: (0.75 x $5) + (0.0625 x $10) + (0.0039 x $20) + (0.0001 x $30) + (0.00001 x $50) = $7.50

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The person who is an american author, anthropologist, and filmmaker who portrayed racial struggles in the early 1900 american south and published research on hoodoo is Zora Neale Hurston.

She is known for portraying racial struggles in the early 1900s American South and published research on hoodoo. Her most popular novel, "Their Eyes Were Watching God," was published in 1937. She also wrote over 50 short stories, plays, and essays.

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Answer: x = 3

Steps: 40x + 120 = 20x + 180

Subtract 120 from both sides:  40x + 120 - 120 = 20x + 180 - 120

Simplify: 40x = 20x + 60

Subtract 20x from both sides: 40x - 20x = 20x + 60 - 20x

Simplify: 20x = 60

Divide both sides by 20:  20x ÷ 20 =  60 ÷ 20

Simplify: x = 3

Plz mark brainliest:)

Answer:

is x=3

Step-by-step explanation: