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Elan Coil [88]
3 years ago
13

Which of the following is the conjugate of a complex number with 2 as the real part and −4i as the imaginary part? (6 points)

Mathematics
1 answer:
agasfer [191]3 years ago
8 0
The number you have given parts for is written
2-4i. to get the complex conjugate just change the sign in the middle. in this case it's 2+4i
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A right triangle has leg measures of 8 and 15 inches. What is the area and perimeter of the triangle?
rewona [7]

Hello!

<h3><em><u>Answer</u></em></h3>

The area of the right triangle is 30 in^{2}. The perimeter is 40 in.


<h3><em><u>Explanation</u></em></h3>

First, we must find the measure of the hypotenuse of the triangle by using the Pythagorean Theorem.

a^{2} + b^{2} = c^{2}

8^{2} + 15^{2} = c^{2}

64 + 225 = c^{2}

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17 = c

Now that we have all the side lengths, we can use the formulas to find the area and perimeter.

<h3>AREA:</h3>

A = \frac{bh}{2}

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<h3>PERIMETER:</h3>

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