Answer:
4.3 *10^3
Step-by-step explanation:
I think 517.26
I did 10 times 3^2 (9) it equals 90. Then 90 times 3.14 and got 282.74. Then did 800- 282.74 and got 517.26
Errrmmm.... Where is the expression?
The correct answer is: [B]:
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<span> f(x) = (x - 9)(x + 9)(x + 5); x= 9, -9, -5 .
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