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uranmaximum [27]
3 years ago
10

Multiply. Write the answer in standard form. (8+3i)2=

Mathematics
1 answer:
Flauer [41]3 years ago
6 0

Answer:

  55 +48i

Step-by-step explanation:

Complex numbers can be treated as though they were binomials with a variable "i". At the end, any instance of i² can be replaced by -1.

  (8 +3i)² = 8² + 2(8)(3i) +(3i)² = 64 +48i -9

  = 55 +48i

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F

Step-by-step explanation:

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3 years ago
(7x2+3x-6)-(-4x2+x-2)
Alex17521 [72]
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7 0
3 years ago
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PLEASE HELP!!!!!!!!! I NEED IT
Andreyy89

Answer:

32.5 feet

Step-by-step explanation:

This situation forms a right triangle. We are given the distance from the base of the tower (long leg of the triangle) and are asked to find the height (short leg of the triangle).

With this information, we can use the tan ratio, opposite over adjacent, to find the height of the tower.

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Simplify and round to the nearest tenth:

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3 0
3 years ago
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gladu [14]

Answer:

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4 0
3 years ago
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