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3 years ago

Find the sum of 10 + 5i and its complex conjugate. Write your answer in the form a + bi

Mathematics

1 answer:

gogolik [260]3 years ago

7 0

Answer:

20.

Given, complex number is 10+5i .

We need to find sum of the given complex number and its conjugate. The conjugate of 10+5i is 10-5i. Therefore, the sum will be 10+5i+10−5i=20.

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Answer:

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3 years ago

Is 60.43 an irrational number

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Answer:

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MariettaO [177]

$\qquad\qquad\huge\underline{{\sf Answer}}$

Let's find out the gradient (Slope " m ") of line q ;

$\qquad \sf \dashrightarrow \:m = \dfrac{y_2 - y_1}{x_2 - x_1}$

$\qquad \sf \dashrightarrow \:m = \dfrac{4 - 0}{0 - 1}$

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2 years ago

Subtract: 2x2 - 4x - 3 from x2 - 5x - 8.

VladimirAG [237]

X^2 - 5x - 8 - <span>2x^2 + 4x + 3
= -x^2 - x - 5

hope that helps</span>

7 0

3 years ago

Read 2 more answers

A 27 1⁄2-mile stretch of road needs repaving. A company bid on the repaving project, saying they would repave 2 1⁄4 miles of roa

Umnica [9.8K]

Answer:

The correct answer is 12 and a half or 13 weeks.

Step-by-step explanation:

First, convert the values to decimals.

27 1/2 = 27.5

2 1/4 = 2.25

Then, divide miles of road that need to be repaved by the number of miles that are repaved per week.

27.5/2.25 = 12.2222222222222

Round that up to 12 and a half weeks or 13 weeks.

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3 years ago