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Estimation Solve the equation. First estimate using the perfect square closest to 85. Then use a calculator.

72 = 85
Estimate.
Z~ 9, -9"
(Use a comma to separate answers as needed.)
Use a calculator.
zan
(Round to the nearest tenth as needed. Use a comma to separate answers as needed.)

Estimation Solve the equation. First estimate using the perfect square closest to-example-1
User Remy Kabel
by
4.1k points

1 Answer

4 votes

Answer: z aprox = 9.2

Explanation:

1) Square root 85 to get the answer

sqrt(z^2)=sqrt(85)

z = sqrt(85)

z = 9.2195

z aprox = 9.2

User Alexmac
by
4.6k points