3 years ago

Evaluate the expression when b=5 and x=-3

Mathematics

1 answer:

Nata [24]3 years ago

8 0

Answer:

-33

Step-by-step explanation:

x-6b when b=5 and x=-3

-3-6(5)=-3-30=-33

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Write out the following proportions in words. 81/9 = 45/5

sergiy2304 [10]

What do you mean by in words?

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4 years ago

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

TEA [102]

Answer:

Rational

Step-by-step explanation:

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Therefore, it is rational.

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