MATHEMATICS COLLEGE

A scam drawing of a rectangle park is 5 inches wide and 7 inches

Answers

Answer 1

Answer:

Answer:

where is the question

Step-by-step explanation:

Answer 2

Answer:

If you are asking for area, the answer is 35inches squared.

Area is length times width, so multiply 5 and 7,

Which gives you 35 inches squared

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The shape of the distribution of the time required to get an oil change at a 15-minute oil-change facility is unknown. However, records indicate that the mean time is 16.2 minutes, and the standard deviation is 3.4 minutes.Requried:a. What is the probabilty that a random sample of n = 40 oil changes results in a sample mean time less than 15 minutes?b. Suppose the manager agrees to pay each employee a $50 bonus if they meet a certain goal. On a typical Saturday, the oil-change facility will perform 40 oil changes between 10 A.M. and 12 P.M. Treating this as a random sample, there would be a 10% chance of the mean oil-change time being at or below what value? This will be the goal established by the manager.

for all values of x , a function f is defined by f(x)=x^2+7x+12 if f(a)=2, what could be the value of a?

Answers

Answer:

a = -2 or a = -5

Step-by-step explanation:

We want $f(a) = a^2 + 7a + 12 = 2$ . We can subtract 2 from both sides of this equation to get $a^2+7a+10=0$ . We can factor this to get that $(a+2)(a+5)=0$ . When the product of two numbers is equal to zero, one of the numbers must be equal to zero. This means that either a + 2 = 0, in which case a = -2, or a + 5 = 0, in which case a = -5.

PLEASE I Can’t figure this out. Write the slope-intercept form of the line that travels through (4,-1) and is parallel to y = 1/4x

Answers

Answer:

y = 1/4x - 2

Step-by-step explanation:

If two lines are parallel to each other, they have the same slope.

The first line is y = 1/4x. Its slope is 1/4. A line parallel to this one will also have a slope of 1/4.

Plug this value (1/4) into your standard point-slope equation of y = mx + b.

y = 1/4x + b

To find b, we want to plug in a value that we know is on this line: in this case, it is (4, -1). Plug in the x and y values into the x and y of the standard equation.

-1 = 1/4(4) + b

To find b, multiply the slope and the input of x (4)

-1 = 1 + b

Now, subtract 1 from both sides to isolate b.

-2 = b

Plug this into your standard equation.

y = 1/4x - 2

This equation is parallel to your given equation (y = 1/4x) and contains point (4, -1)

Hope this helps!

9,13,43,55 what is the mean absolute deviate (MAD) of their ages

Answers

The mean absolute deviation (MAD) of their ages is 19 and this can be determined by using the formula of mean absolute deviation.

Given :

Ages - 9 , 13 , 43 , 55

The meanabsolute deviation is given by the formula:

$\rm MAD = (1)/(n)\sum^(n)_(i=1)|x_i-m(X)|$

where n is the total number of data values, $x_i$ is the data value in the set, and m(X) is the average value of the data set.

So, to find MAD first evaluate the value of m(x).

$\rm m(X) = (9+13+43+55)/(4)$

m(X) = 30

Now, the MAD of their ages is:

$\rm MAD = (|9-30|+|13-30|+|43-30|+|55-30|)/(4)$

$\rm MAD=(21+17+13+25)/(4)$

MAD = 19

So, the mean absolute deviation (MAD) of their ages is 19.

For more information, refer to the link given below:

brainly.com/question/7851768

Answer:

The mean absolute deviation of this data $\{9,13,43,55\}$ is $MAD =19$ .

Step-by-step explanation:

The mean absolute deviation (MAD) of a dataset is the average distance between each data point and the mean. It gives us an idea about the variability in a dataset.

The steps to find the MAD include:

find the mean (average)
find the difference between each data value and the mean
take the absolute value of each difference
find the mean (average) of these differences

To find the mean absolute deviation of this data $\{9,13,43,55\}$ you must

Step 1: Calculate the mean.

$\:mean=\bar{x}= (9+13+43+55)/(4) =(120)/(4)=30$

Step 2: Calculate the distance between each data point and the mean and take the absolute value of each difference.

$|9-30|=21\n|13-30|=17\n|43-30|=13\n|55-30|=25$

Step 3: Add the distances together.

$21+17+13+25=76$

Step 4: Divide the sum by the number of data points.

$MAD = (76)/(4) =19$

For one child, a childcare facility charges $350 per month for preschool and $5.00 per hour for each additional hour for after-school care. The function below can be used to determine f(h), the monthly fee for after-school care and preschool, where h represents the number of hours spent in after-school care.f(h) = 350 + 5h

If the total monthly bill for one child was $750, what was the total number of hours the child spent in after-school care?

A.100
B.90
C.88
D.80

Answers

Answer:

D.) 80

Step-by-step explanation:

750 - 350 = 400

400/5 = 80

80 hours

Hopefully this helps you :)

pls mark brainlest ;)

Answer:

D-80

Step-by-step explanation:

750-350=400

400/5=80

How to simply the radical

Answers

6√2 + 4 √32
try to get the same number "2" remaining under the root sign by finding what # times 2 gives 32
6√2 + 4√2×√16
since 16 is a perfect Square √16 gives 4
therefore.
6√2 + 4 ×4 √2
6√2 +16√2
these are Like terms so add them
which would give u
22√2
hoped i helped, feel free to ask any question XOX

Solve each quadratic equation. Show your work. 14. (2x – 1)(x + 7) = 0 15. x^2 + 3x = 10 16. 4x2 = 100

Answers

14.)

2x(x + 7) -1(x + 7) = 2x² + 14x - x - 7 = 2x² + 13x - 7 ...//Ans ...

15.)

x² + 3x - 10 = x² + 5x - 2x - 10 = x(x + 5) -2(x + 5) = (x - 2) (x + 5) ...//Ans ...

16.)

4x² = 100
x² = 100 ÷ 4 = 25
x = √25 = 5 ...//Ans ...

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