foxpower0519 foxpower0519

04-05-2020
Mathematics

contestada

When you multiply (3+6i)(3+7i) you get an answer of the form a+bi. Find a.

Respuesta :

OfficialRoytriever OfficialRoytriever

04-05-2020

(3 + 6i)(3 + 7i)

FOIL: First, Outside, Inside, and Last

3 x 3 = 9

3 x 7i = 21i

6i x 3 = 18i

6i x 71= 42i

9 + 21I + 18I + 42I = 9 + 81I

a = 9

B = 81I

Answer Link

Otras preguntas

what would the answers be on p n w y

0.34+0.1+0.25 use benchmarks to estimate

Explain how to break apart the addends to find the sum 25+16

Which is the subordinate clause in the sentence? Some flowers fell when the forest burned and became preserved under layers of ash. a. under layers of ash b.

Read the sentence. I am taking advanced math to learn methods for solving equations. Which phrase is the complete infinitive phrase in the sentence? to learn me

what is 69 / 2 in a decimal

Mallory is buying bedroom furniture for $1,789.43. The dresser is 39.7% of the total cost. Which is the best estimate for the cost of the dresser? A. $5.40 B. $

This force rubs things away.

The Krebs cycle takes place within the: A. mitochondria B. lysosome C. vacuole D. cytoplasm

how does meiosis work