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GarryVolchara [31]
2 years ago
13

Adding subtracting complex numbers (5-3i) - (-2+4i)

Mathematics
1 answer:
telo118 [61]2 years ago
8 0

Answer:

7-7i

Step-by-step explanation:

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1.
Bad White [126]

first polygon

ext. angle=180°-120°

=60°

ext \: ang =  \frac{360}{n}

n=360°/60°

n=6

second polygon

n=2(6)=12

ext. ang= 360°/n = 360°/12° = 30°

int. ang = 180°-30°= 150°

answer is C

6 0
3 years ago
The volume of this sphere is 972x cubic inches. What is its radius?
agasfer [191]

Answer: 9

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Help ASAP will give brainlist
Mekhanik [1.2K]

Answer:

4/25 (Srr if incorrect)

Step-by-step explanation:

8 0
2 years ago
Are the figures below similar? Why or why not? Determine whether the triangles shown in the image are similar.
Vika [28.1K]

Answer:

B) no, because the corresponding angles are not congruent

Step-by-step explanation:

Similar triangles must have proportional sides, as well as congruent corresponding angles. In this instance, we can see that the angles are not <em>congruent</em>, and so there is no need to solve for proportion.

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3 0
3 years ago
Read 2 more answers
If angle B is two more than three times the measure of angle C, and angle B are
GalinKa [24]

Set up a system of equations:

B=2+3C

B+C=90

The variable B is already solved, so plug into bottom equation:

2+3C+C=90

2+4C=90

4C=88

C=22

Plug C back in:

B+22=90

B=68

So B is 68 degrees and C is 22 degrees

Hope this helped!

6 0
3 years ago
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