3 years ago

Write a expression that uses partial products to multiply 8 x 64

Mathematics

1 answer:

krok68 [10]3 years ago

3 0

8 x 64
=64 x 2 x 4
=128 x 2 x 2
=256 x 2
=512

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Evaluate 8-2. A. -16 B. -64 C. -1/64 D. 1/64

makvit [3.9K]

I'm assuming you meant to write 8^(-2) or $8^{-2}$ where the -2 is the exponent over the 8.

If my assumption is correct, then we use the rule $a^{-b} = \frac{1}{a^b}$

So,

$a^{-b} = \frac{1}{a^b}\\\\8^{-2} = \frac{1}{8^2}\\\\8^{-2} = \frac{1}{64}$

<h3>Answer: Choice D. 1/64</h3>

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