20ahumphreys 20ahumphreys

06-06-2020
Mathematics

contestada

1. Find the product: (4 + 6i)(7-2i)
a. 11 + 4i
b. 28 - 12i
c. 40 + 34i
d. 62 - 12i

Respuesta :

tatiklisek tatiklisek

06-06-2020

Answer:

c

Step-by-step explanation:

(4 + 6i)(7-2i)=

28-8i+42i-12i^2

i^2=-1, so

28+12-8i+42i

40+34i

answer is c

Answer Link

Otras preguntas

What is the answer to this?

I am a quadrilateral with exactly one pair of opposite sides that are parallel. Who am I?

Solve 2(x+6)=2(6+13x).

Phosphoric acid can be used to clean scale (calcium carbonate) from water fixtures like taps by reacting with it to form products that dissolve easily. warming

Minimum wages create unemployment in markets where they create a

The tone of this speech could best be described as expressing a feeling of

Explain the system of peonage in Latin America

20 POINTS!!What type of graph would you use to compare the number of books at each price? In two or more sentences, explain your choice.bar graphline graphscatt

A flute is similar to a pipe open at both ends, while a clarinet is similar to a pipe closed at one end. Explain why the fundamental frequency of a flu

SQUA is a square. If side SQ has endpoints S(-2,8) and Q(4,10), find the perimeter to two decimal places? HURRY!!