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astraxan [27]
3 years ago
11

Evaluate this expression when a=9

Mathematics
1 answer:
OlgaM077 [116]3 years ago
6 0

Answer:

63

Step-by-step explanation:

a=9

7a

7(9)

63

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Which of the following equations is of a parabola with a vertex at (3, 0)?
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D. y = (x - 3)²

Step-by-step explanation:

The parabola formula in vertex form is:

y = a(x - h)² + k

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3 years ago
Use the Perfect Square Trinomial and provide the first step to calculating 382 without a calculator.
dusya [7]

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3 years ago
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