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If fire fighters response time to an emergency call is normally distributed with a mean of 9 minutes and a standard deviation of 2 minutes. Determine the percent of emergency calls with a firefighter response time:
(a) Between 7 and 11 minutes (b) Less than 12.2 mins (c) At least 7.8 minutes

Answer:

the sales commission is $225

Step-by-step explanation:

Given that

The sale is of $900

And, the commission rate is 25%

We need to find out the sales commission

So, the sales commission is

= Sale × commission rate

= $900 × 0.25

= $225

We simply multiply the sales with the commission rate so that the sales commission could come

Hence, the sales commission is $225

Answer:

(2x-8)(2x+8)

4x squared -64 is the answer

how you get it is by multiplying 2x times 2x to get 4x squared and -8 times 8 =    -64

hope this helps

if this is algebra 1 then this is right

Answer: 41 vans will be needed.

Step-by-step explanation:

There are a total of 492 campers. We know that each van can hold a total of 12 passengers.

So, simply divide 492 by 12 to get the total amount of vans needed.

492/12 = 41 vans.

Answer:

A. $213.75

Step-by-step explanation:

If we add up all the numbers listed, we get a sum of 2565.

Divide $2,565 by how many numbers we added. We added 12 numbers.

2,565 ÷ 12 = 213.75.

Therefore, the average is $213.75.

Answer:

31.

Step-by-step explanation:

π(18)l = 558π

l = 558/18 = 31

Therefore the answer is 31.

Answer:

1) x = 8

2) ∠RPS = 36°

Step-by-step explanation:

GIVEN :-

TO FIND :-

FACTS TO KNOW BEFORE SOLVING :-

In a straight line , if there are two angles such that their sum is equal to straight angle (or 180° in other words) , then those angles are known as linear pair.

PROCEDURE :-

1)

Measure of ∠QPS = 180° and it comprises of ∠QPR & ∠RPS.

⇒ ∠QPR & ∠RPS are linear pair.

⇒ ∠QPR + ∠RPS = 180°

⇒ 7x + 88 + 3x + 12 = 180°

⇒ 10x + 100 = 180

⇒ 10x = 180 - 100 = 80

⇒ x = 80/10 = 8

2)

x = 8. So,

∠RPS = 3×8 + 12 = 24 + 12 = 36°

Answer:

56

Step-by-step explanation:

The range of a box and whisker graph is the difference of the furthest point to the right and furthest point to the left. 76-20 = 56

Answer:

The range is 56.

Step-by-step explanation:

The range is the greatest value subtracted by the smallest value.

76 - 20 = 56.

Also, It would be FRICKIN' FANTABULOUS if I could get brainliest!!!

Answer:

for A plug in those numbers on the right and on the left start with 1 and move up(for example 1,2,3,4,5...)

For b  the answer is 2.5x²−4.5x+1.

Step-by-step explanation:

Answer:

The answer is 3.

Step-by-step explanation:

All you need to do is insert 3 and 2 into T and S's places because they give you the value of both or then. When you insert the numbers, you multiply them. It should look like this: (12(3)) divided by (6(2)). Then divided both the numbers in the order the equation is asking to get 3.

Answer:

2x2 matrix

Step-by-step explanation:

Given

Dimension of matrices A = 2x2 matrix

Dimension of matrices B = 2x1 matrix

The dimension of matrix AB can be gotten by cancelling the row of matrices 1 and column of matrices 2.

After cancelling both row and column, the remaining dimension will be 2x2 matrix. Hence the dimension of AB is 2x2 matrix

Answer:

I think the correct answer is c

Answer:

The corresponding p - value will be  is < 0.00001 which is less than 0.05

Step-by-step explanation:

Suppose p= 0.12 and n= 540 then the standard deviation can be taken out as √p(1-p)/n= √0.12(1-0.12)/540= 0.014

For the probability that the survey will provide a sample proportion within 6.03 of the population proportion

we will find the z statistic

z= p^-p/√p(1-p)/n

But √p(1-p)/n= 0.014 and p^-p= 6.03

Putting the values

z= 6.03/0.014= 430.71

The corresponding p - value will be  is < 0.00001 which is less than 0.05

Answer:

The integers are 269 and 271.

Step-by-step explanation:

Since the sum of two consecutive odd integers is 540, to determine what are the integers, the following calculation must be performed:

Odd integer 1: X

Odd integer 2: X + 2

X + X + 2 = 540

2X + 2 = 540

2X = 540 - 2

X = 538/2

X = 269

Therefore, the integers are 269 and 271.

Step-by-step explanation and Answer:

First, write statements! Then find out the operation. Very simple!

Number of burritos Chloe ate: 34

Number of burritos Lucy ate: 3

Number of burritos Chole ate more that Lucy: 34-3= 31

= Chloe ate 31 burritos more that Lucy.

Answer:

Upper Control Limit for a c-chart = 9.1

Step-by-step explanation:

Given - construction company has just constructed 150 new apartments. An external inspector is hired to do the final checking before they are given way to prospective customers. Inspector at random selects 8 apartments and and counts how many defects are in each one them. He finds 7,3, 2, 1, 2, 5, 4, 4 defects.

To find -  What will be Upper Control Limit for a C chart ?

Proof -

Upper Control Limit for a c-chart =  c bar + 3(square root of c bar)

Now,

c bar = [tex]\frac{7+3+2+1+2+5+4+4}{8}[/tex] = 3.5

∴ we get

Upper Control Limit for a c-chart =  3.5 + 3(square root of 3.5)

                                                      = 3.5 + (1.87)

                                                      = 3.5 + 5.61

                                                      = 9.1

⇒Upper Control Limit for a c-chart = 9.1

Answer:

First Blank: 4*2 = 8

Second Blank: 6*2 = 12

Step-by-step explanation:

The common ratio for the right row is the number thats given on the opposite side of it's left row times 2

Hope this helps!

Answer:

I have no clue my guess tbh 4 to 8 and 6 to 12

Answer:

2/11

Step-by-step explanation:

6/11 x 1/3 =

6/33 =

2/11

If my answer is incorrect, pls correct me!

If you like my answer and explanation, mark me as brainliest!

-Chetan K

Answer:

2/11 as a fraction

0.18 as a decimal

Step-by-step explanation:

Answer:

The officers can be chosen in 1320 ways.

Step-by-step explanation:

The order in which the officers are chosen is important(the first is president, second vice president and third secretary) which means that the permutations formula is used to solve this question.

Permutations formula:

The number of possible permutations of x elements from a set of n elements is given by the following formula:

[tex]P_{(n,x)} = \frac{n!}{(n-x)!}[/tex]

In this question:

3 officers from a set of 12. So

[tex]P_{(12,9)} = \frac{12!}{9!} = 1320[/tex]

The officers can be chosen in 1320 ways.

Answer:

IDH or CDE

Step-by-step explanation:

adjacent angles share same vertex and share one side so it's either IDH or CDE.

Answer:

45%

Step-by-step explanation:

27/60 = x/100

Solve for x

x = 45

Answer

for number 6 it should be 459

Step-by-step explanation:

Remember you always multiply the numbers for a easy way or method u can use LxWxH=V. Lengh x Width x Height=Volume

Im so sorry if its wrong

Answer:

The red segment is from 1/4 to 3/4.

Step-by-step explanation :

Answer:

The red segment is from 1/4 to 3/4.

3/4 - 1/4 = 2/4

2/4 = 1/2

1/2

This answer can also be found by seeing there are four equal boxes making up the one larger box, since two out of the four boxes are filled then the fraction would be 2/4, which simplifies to 1/2

Answer: Hello: ) ✨473 miles

Step-by-step explanation:

43 mph for 11 hours = 43×11 = 473

Step-by-step explanation:

the answer is 28.2m²

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Answer:

3?

Step-by-step explanation: