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Morgarella [4.7K]
3 years ago
13

If f(x) = x2 + 7, what is the value of f(3)? A) 2 Eliminate B) 12 C) 13 D) 16 E) 17

Mathematics
1 answer:
VARVARA [1.3K]3 years ago
8 0

Answer:

D

Step-by-step explanation:

To evaluate f(3) substitute x = 3 into f(x), that is

f(3) = 3² + 7 = 9 + 7 = 16 → D

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Answer:

The correct answer is b.)

Step-by-step explanation:

Given:

Sequence  -7, -4, -1, 2, 5.......  => a₁ = -7, a₂ = -4, a₃ = -1, a₄ = 2 and a₅ = 5

We conclude that this sequence is arithmetic series.

First we must find difference d:

d = a₂ - a₁ = a₃ - a₂ = -4 - (-7) = -1 - (-4) = -4 + 7 = -1 + 4 = 3

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The formula for n-th term of the arithmetic series is:

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