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dedylja [7]
3 years ago
11

Laurie was scuba diving. Each time she dove 5 feet deeper, she would stop and clear her ears. Each time that this totaled 20 fee

t deeper, she would stop and check her instruments to make sure they were working properly. After Laurie had checked her instruments 3 times, she was at her maximum depth. Which expression best represents Laurie’s maximum depth?
A) (4)(-5)(3)
B) (-4)(-5)(-3)
C) (-5)(20)(3)
D) (-5)(-20)(-3)
Mathematics
2 answers:
Alisiya [41]3 years ago
6 0

Answer:

A

I hope that it is the right answer and that it will help you.

aksik [14]3 years ago
5 0

Hi, There!

Answer:

A) (4)(-5)(3)

I hope it helps!!

And thanks for your Question!!

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<h2>Answer:</h2>

f^{-1}  (x)=\sqrt{\frac{x}{14}}.

<h2>Step-by-step explanation:</h2>

<h3>1. Write the expression.</h3>

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<h3>2. Substitute y for x, and x for y.</h3>

x=14y^{2}

<h3>3. Solve for y.</h3>

14y^{2}=x\\ \\y^{2} =\frac{x}{14} \\ \\y=\sqrt{\frac{x}{14}}

<h3>4. Express your result.</h3>

f^{-1}  (x)=\sqrt{\frac{x}{14}}.

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