boyerjasmine12 boyerjasmine12

06-03-2020
Mathematics

contestada

What is the standard form of (7-5i)(2+3i)
A. 29+11i
B. -29+11i
C. -11+29i
D. 11-29i

Respuesta :

devishri1977 devishri1977

06-03-2020

Answer:

A

Step-by-step explanation:

(7-5i)(2+3i)= 7*(2+3i) - 5i*(2+3i)

= 7*2 + 7*3i - 5i*2 - 5i*3i

= 14 + 21i -10i - 15i² {i² = -1}

= 14 + 21i - 10i -15*(-1)

= 14 + 11i + 15

= 29 + 11i

Answer Link

Otras preguntas

christelle is making a doll house. The doll house is 6/10meter high without the roof. The roof is 15/100 meter high. What will the height of the doll house be,w

Do you think that victims of human rights abuses are protected

In a community, there are five brown squirrels, five grey squirrels, and ten white squirrels. what is the relative abundance of brown squirrels? A 5% B 20% C 25

What does the second apparition tell Macbeth

Physical appearance of who use ecstasy four example.

A juice stand uses 11 cups of strawberries to make 66 pitchers of juice. What is true about the number of cups of strawberries in each pitcher?

When making informed decisions about health products or procedures, it's important to consider __________. a. risks, costs, and caution b. credibility, risks,

How does a traditional economy differ from a capitalist economy

How can nationalism be considered a cause of World War I

Alice wants to put wall-to-wall carpeting in a small room with thefloor plan shown.a. Alice says she can find the area of the room by dividing thefloor plan int