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3 years ago

Which expression is equivalent to OA2 42 O -7 1

Mathematics

1 answer:

Marina CMI [18]3 years ago

8 0

it is the last one before the time

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Solve for v:<br> -5.5 = 7.3 + v/8

Romashka [77]

-5.5=7.3+v/8

convert decimals to fractions

-11/2=73/10+v/8

multiply both sides by 40

-220=292+5v

move terms

-5v=292+220

add the numbers

-5v=512

divide both sides by -5

v=512/5

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AlladinOne [14]

Answer:

Step-by-step explanation:

Given expression:

$27 \cdot \left(\left(3^3\right)^{-1}\right)$

Following the <u>order of operations</u>, carry out the operations inside the parentheses first:

$\implies 27 \cdot \left(\left(3 \cdot 3\cdot 3\right)^{-1}\right)$

$\implies 27 \cdot \left(27^{-1}\right)$

$\textsf{Apply exponent rule} \quad a^{-n}=\dfrac{1}{a^n}:$

$\implies 27 \cdot \left(\dfrac{1}{27^1}\right)$

$\implies 27 \cdot \left(\dfrac{1}{27}\right)$

Convert 27 to a fraction:

$\implies \dfrac{27}{1} \cdot \dfrac{1}{27}$

Cross cancel the common factor:

$\implies \dfrac{\diagup\!\!\!\!\!27}{1} \cdot \dfrac{1}{\diagup\!\!\!\!\!27}$

$\implies \dfrac{1}{1}$

$\implies 1$

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2 years ago