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OLEGan [10]
3 years ago
7

Simplify: (7+4i)+(-4+5i)+(4+7i) a)15+6i b)3+9i c)7+16i d)-1+2i

Mathematics
1 answer:
Kay [80]3 years ago
8 0

Answer:

i strongly believe the answer is (c)

Step-by-step explanation:

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Answer:

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Step-by-step explanation:

Kaia's window is in the shape of a trapezoid. Three of the angles are 80°, 100°, and 109°. What is the measure of the fourth angle?

The sum of angles in a trapezoid is equal to = 360°

We are given 3 angles in the trapezoid as: 80°, 100°, and 109°.

The measure of the fourth angle is calculated as:

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360° - (80°+ 100° +109°)

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= 71°

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Step-by-step explanation:

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