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.

< xcy ≅ < xby

step-by-step explanation:

in δcax and δbax,

so, δcax ≅ δbax (side-angle-side or sas)

since δcax ≅ δbax, we can conclude < acx ≅ < abx

in δacy and δaby,

so, δacy ≅ δaby (side-angle-side or sas)

since δacy ≅ δaby, we can conclude < acy ≅ < aby

now,

< acy ≅ < aby

=> < acx + < xcy ≅ < abx + < xby

=> < acx + < xcy ≅ < acx + < xby   (since < acx ≅ < abx already proved above)

subtracting < acx from both sides, we get

< acx + < xcy -< acx ≅ < acx + < xby -< acx

cancelling out < acx and -< acx from both sides, we get

< xcy ≅ < xby (proved)

step by step explanation: when u removing the parentheses and combined them that would be : x+3y-x-y=2y