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2 years ago

PLEASE HELP ASAP!!! CORRECT ANSWERS ONLY PLEASE!!!

Mathematics

2 answers:

Katen [24]2 years ago

7 0

Answer: D

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

When dealing with a an exponent in fraction form:

the top number represents the exponent.
the bottom number represents the root.

$5^{\frac{1}{3}} = \sqrt[3]{5^{1}} = \sqrt[3]{5}$

Vanyuwa [196]2 years ago

3 0

The radical expression is D

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Answer:

Step-by-step explanation:

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3 years ago

Pls help:Find all the missing elements:

Yuliya22 [10]

Answer:

Step-by-step explanation:

In order to find B we must first angle C

To find angle C we use the sine rule

That's

$\frac{ |a| }{ \sin(A) } = \frac{ |c| }{ \sin(C) }$

From the question

a = 15

A = 70°

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So we have

$\frac{15}{ \sin(70) } = \frac{14}{ \sin(C) }$

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C = 61.288

<h3>C = 61.3° to the nearest tenth</h3>

Since we've found C we can use it to find B.

Angles in a triangle add up to 180°

To find B add A and C and subtract it from 180°

That's

A + B + C = 180

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B = 180 - 70 - 61.3

<h3>B = 48.7° to the nearest tenth</h3>

To find b we can use the sine rule

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$\frac{ |a| }{ \sin(A) } = \frac{ |a| }{ \sin(B) }$

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$|b| = \frac{15 \sin(48.7) }{ \sin(70) }$

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<h3>b = 12.0 to the nearest tenth</h3>

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