4 years ago

Can someone help with this math question please

1 answer:

alexandr1967 [171]4 years ago

6 0

The best choice is
B.

_____
The black triangle is on the end of one of the rectangular faces, the end that meets up with the double line on the triangular base.

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3 years ago

Find f(3). f(x) = x2 + 5x - 9 A) 7 B) 10 C) 9 D) 15

Lelechka [254]

Answer:

f(3) = 15. Correct: D)

Explanation:

Numeric Value of a Function

The value of a function f(x) when x = a is calculated by replacing the x for a. We have the function:

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It is required to find f(3), or the numeric value of f when x=3. Replace x for 3

$f(3)=3^2+5(3)-9$

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D) Correct. f(3) =15 as found above.

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