3 years ago

5 to the 3rd power times 5 to the negative 2 power

1 answer:

3 0

The equation is $5^{3}$ × $5^{-2}$

First, you need to solve the bases/exponents

$5^{3}$ is 5×5×5=125

Then you solve the second base/exponent but know that with negative exponents, you divide 1 by the number rather than multiplying

$5^{-2}$ = 1÷5÷5=.04

So now the equation is 125×.04=5

Answer: 5

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Estimate the answer to the following problem to the nearest 10 13+46+87= a. 130 b.155 c.160 d.150

Lunna [17]

150

13+46= 59
59+87= 146

Round 46 to the nearest ten, which in this case would be 50 because the last number is larger than a 5.

Then add the 1 back in to make it 150.

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3 years ago

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fiasKO [112]

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