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Dvinal [7]
2 years ago
10

Which expression is a cube root of -1+ i sqrt 3? (multiple choice)

Mathematics
1 answer:
lara31 [8.8K]2 years ago
6 0

Answer:

see below

Step-by-step explanation:

Find the magnitude   (-1)^2  + (sqrt3)^2 = m^2   m = 2

find the angle    arctan (sqrt3/-1) = 120 degrees

the cube root would then be

\sqrt[3]{2}(cos 40 + isin 40)

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3 years ago
Solve the inequality.
maw [93]

The solution to inequality is less than the negative of 21. Then the correct option is C.

<h3>What is inequality?</h3>

Inequality is defined as an equation that does not contain an equal sign. Inequality is a term that describes a statement's relative size and can be used to compare these two claims.

The inequality is given below.

−(1/3)x + 10 > 17

Then the solution to the inequality will be

−(1/3)x + 10 > 17

       −(1/3)x > 17− 10

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When the sign is changed then the equality sign also changed.

(1/3)x < −7

     x < − 21

The value of x is less than the negative of 21.

Thus, the correct option is C.

More about the inequality link is given below.

brainly.com/question/19491153

#SPJ1

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2 years ago
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Answer:

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Step-by-step explanation:

What you do is you will divide 611 by 91 to find your answer.

<em>611/91=6.714</em>

You will round up because the 7 is greater than 5.

About 7 buses.

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