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bazaltina [42]
3 years ago
13

What expression is equivalent to 2^-3/2^-5?​

Mathematics
1 answer:
mr_godi [17]3 years ago
6 0
2^2 , or 4
since the exponents have the same base, we can subtract the exponent of the numerator by the exponent in the denominator.

So 2^-3 - 2^-5 = 2^(-3-(-5)) = 2^2

The new exponent is 2 because -3-(-5) is equal to 2.

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Select the correct answer.
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3 years ago
Simplify: −7 + {12 − 3[50 − 4(2 + 3) ] }
DedPeter [7]

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Step-by-step explanation:

<em><u>1) (2 + 3)</u></em>

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<em><u>2) -7 + {12 - 3[50 - 20] }</u></em>

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<em><u>3) -7 + 12 - 90</u></em>

5 - 90

<u>Answer: -85</u>

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svetoff [14.1K]

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Step-by-step explanation:

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andrew11 [14]

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Step-by-step explanation:

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