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2 years ago

4

Simplify the exponent

title="(\frac{b^{2} }{2a} )^{4}" alt="(\frac{b^{2} }{2a} )^{4}" align="absmiddle" class="latex-formula">, ( The answer must be positive.)

1 answer:

statuscvo [17]2 years ago

8 0

Answer:
MARK BRAINLEIST !

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At noon Joyce drove to the lake at 30 miles per hour. but she made the long walk back home at 4 miles per hour. How long did she

mars1129 [50]

Answer:

60 miles

Step-by-step explanation:

let d = distance to the lake

Using: time = distance ÷ speed

Create expressions for the time it takes for each journey:

Drive: $t_1=\dfrac{d}{30}$

Walk: $t_2=\dfrac{d}{4}$

If total time = 17 hours

$\implies t_1+t_2=17$

$\implies \dfrac{d}{30}+\dfrac{d}{4}=17$

$\implies \dfrac{17d}{60}=17$

$\implies 17d=1020$

$\implies d=\dfrac{1020}{17}$

$\implies d=60$

Therefore she walked 60 miles

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Answer:

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Step-by-step explanation:

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3 years ago

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Answer:

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Jorge walked 25 steps north. then he walked 75 steps south. What is Jorge's final position?

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Answer:

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Step-by-step explanation:

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