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vekshin1
3 years ago
8

Please help me do this math problem. It is open ended with no answer choices to choose from, and I am sooo confused about how to

do it. The attachment shows the problem.

Mathematics
1 answer:
dusya [7]3 years ago
8 0
Use Moivre Formula to find cube roots of 64(cos219+isin219)

Cubic roots =∛[64(cos219+isin219)] = [64(cos219+isin219)]^(1/3)

= 4[(cos219+isin219)]^(1/3)=4[cos(219)/3+isin219/3)]=
= 1.169 + 3.82 i

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bearhunter [10]

Answer:

I think (D)

Step-by-step explanation:

8 0
3 years ago
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How do i Solve: 3x2−6x−12=0 ?
MrMuchimi

Answer:

1 + root 5, 1 - root 5

Step-by-step explanation:

I assume you mean 3x^2-6x-12=0.

First, note that you can divide both sides by 3. You get:

x^2-2x-4=0

Use the quadratic equation.

x=\frac{2\pm\sqrt{4+16}}{2}=\frac{2\pm2\sqrt{5}}{2}=1\pm\sqrt{5}

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4 0
3 years ago
which of the following side lengths can form a triangle. A.10,16,&amp;30 B.11,14,&amp;26. C.41,51,&amp;61. D.100,200,&amp;600.
bulgar [2K]
C is the correct answer. :)
3 0
3 years ago
Mariam is making
ira [324]

Answer:

  no

Step-by-step explanation:

A trapezoid is shown, not a bag. If we assume that this shape is supposed to be the front of the bag, Mariam does NOT have enough pink fabric to make the front of the bag from pink fabric.

The area of the trapezoid shown is ...

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This area is larger than the amount of fabric Mariam has, so she does not have enough.

3 0
3 years ago
20 POINTS NEED HELP ASAP!!!Which is
TEA [102]

Answer:

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3 years ago
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