The cost to install x number of central air conditioning units for a company is given by the function C(x) = 4000x +1300/3 Use the function to determine the cost to install 45 air conditioners

Given:

The cost to install x number of central air conditioning units for a company is given by the function

To find:

The cost to install 45 air conditioners.

Solution:

We have,

Putting x=45, we get

Therefore, the cost to install 45 air conditioners is $60433.33.

0.85 or 85%

step-by-step explanation:

1) divide 23 by 27

2) round the decimal to the nearest 10

3) so your answer would be 0.85 or 85%

15%

step-by-step explanation:

use the table and count the number of guesses that has two correct answers.

the following are two correct answers

10010, 01100, 11000

a total of 3 numbers having 2 correct guesses out of 20 questions.

probability of getting 2 correct guesses = the number of questions getting 2 correct answers / total number of questions.

= 3/20

to convert it into percent multiply by 100, we get

= 3/20 * 100

= 15%

the answer is 15%

you.