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Olenka [21]
3 years ago
10

Rewrite −1 + 2i in polar form.

Mathematics
1 answer:
raketka [301]3 years ago
8 0
The length of the radius would sqrt(1+4), or sqrt(5).
                                                                                           2
The angle would be in Quadrant II and would be arctan ------ , or arctan (-2).
                                                                                           -1

Find this angle using a calculator or table.

Then you end up with -1+2i = sqrt(5) angle arctan(-2).  The angle would be + and measured from the + horizontal axis.
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3 years ago
The graphs below have the same shape what is the equation of the blue graph
azamat

Answer:  g(x) = (x-2)^2 + 1. Choice C

===========================================================

Explanation:

The graphs have the same shape, which means they have the same 'a' value.

In this case, a = 1.

The vertex of the red graph is (0,0).

The vertex of the blue parabola is (2, 1)

The red curve has been shifted 2 units to the right and 1 unit up.

Since the vertex of the blue graph is (2,1), this means h = 2 and k = 1.

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5 0
4 years ago
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Answer:

\huge\boxed{Answer=>44}

Steps:

If you do the steps correctly, the answer should be 44 ice cream scoops.

(Short way to do this problem/question)

Information given:

1. He uses 1/16 of the bottle of syrup(Every scoop of icecream he eats)

2. The question wants us to find, if he had ate 2 3/4 bottle of chocolate syrup.. how many scoops did he eat.

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Now, if we do 16 times 2 3/4 we would get...

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