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den301095 [7]
3 years ago
12

Ggefv23ehwdg1uhigvfgwuiderfghvwh4eryu

Mathematics
1 answer:
Marta_Voda [28]3 years ago
8 0

Answer:

1. 15+63= 78 ft cubed

2. 5.5+33= 38.5 m cubed

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Step-by-step explanation:

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Simplify the expression-3÷(-2/5)​
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Answer:

15/2 or 7.5

Step-by-step explanation:

-3÷ (-2/5)

The reciprocal of -2/5 is -5/2

So we multiply -3 into the reciprocal of the fraction and we can get the same answer

Therefore,

-3÷(-2/5)

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3 years ago
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Is <img src="https://tex.z-dn.net/?f=2%5E%7B-3%7D" id="TexFormula1" title="2^{-3}" alt="2^{-3}" align="absmiddle" class="latex-f
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Answer:

Rational

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2^{-3} simplifies to \frac{1}{8}.

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2^{-3}\\\\\text {Apply negative exponent rule: } a^{-n} = \frac{1}{a^n} \\2^{-3}= \frac{1}{2^3}\\ \rightarrow 2^3 = 2*2*2=8\\\boxed{2^{-3}=\frac{1}{8}}

<em>Brainliest Appreciated. </em>

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.56 is ur answer.......
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