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3 years ago

9

You are purchasing carpeting for an office building. The space to be carpeted is 30 feet by 50 feet. Company A charges $2.99 per

square foot plus a $200 installation charge. Company B charges $19.99 per square yard plus a $500 installation charge.

1 answer:

pishuonlain [190]3 years ago

4 0

The Answer is $5 = $20(x<span>)!!!!!!!!!!!!!!!!!!!!!!!!</span>

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Step-by-step explanation:

Alright, lets get started.

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3 years ago

Find the exact solution of x <br> 3x^2+7=28<br> A.+√7<br> B.7<br> C.+7<br> D.-7

yulyashka [42]

Answer:

x = ± $\sqrt{7}$

Step-by-step explanation:

3x² + 7 = 28 ( subtract 7 from both sides )

3x² = 21 ( divide both sides by 3 )

x² = 7 ( take square root of both sides )

x = ± $\sqrt{7}$

that is x = - $\sqrt{7}$ , x = $\sqrt{7}$

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