3 years ago

Simplify (9 + 7i)/(-10 + 8i)

1 answer:

3 0

Multiply numerator and denominator by the conjugate of the denominator

Denominator: -10 + 8i
Conjugate of the denominator: -10 - 8i

Operation:

[9 +7i] / [-10 + 8i] * [-10 -8i] / [-10 - 8i] = [-90 - 72i - 70i +56] / [100 + 64] =

[-34 -142i] / 164 = [-17 -71i] / 82

You might be interested in

What is the slope of the line that passes through the points (-3,2),(8,-9)

UNO [17]

Slope is -1

Hope this helps

5 0

3 years ago

Read 2 more answers

HELPPPP......ASAP Will give 10 points

Leni [432]

Answer:

120 degrees, I think

Step-by-step explanation:

5 0

3 years ago

Read 2 more answers

Write as an inequality y is less than 0 and greater than -6

navik [9.2K]

Since Y is greater than -6 the symbol has to point away from the -6 and towards the y. And because Y is less than 0, the symbol has to point towards the zero and away from they. -6<y<0

3 0

3 years ago

Algebra 2 Question, tagged in the link

deff fn [24]

The answer to the question

7 0

2 years ago

Giovanni had seven rows of trading cards each row had five cards then he added three new cards how many cars are there altogethe

natali 33 [55]

Your answer is 38 because 7x5+3 is 38.

4 0

2 years ago