lennajaneslaystheday lennajaneslaystheday

10-12-2021
Mathematics

contestada

Simplify the expression 2i(4.5 – 20i) + 3i. Write your answer in the form a + bi.

Respuesta :

jimrgrant1 jimrgrant1

10-12-2021

Answer:

40 + 12i

Step-by-step explanation:

note that i² = - 1

2i(4.5 - 20i) + 3i ← distribute parenthesis by 2i

= 9i - 40i² + 3i

= 9i - 40(- 1) + 3i

= 9i + 40 + 3i

= 40 + 12i

Answer Link

Otras preguntas

In an 8 team floor hockey, each team plays each of the other team twice. What is the total number of games played

why did hostilities erupt in the Philippines after the Spanish American war

which statement best relates to how the structure of a lipids influences the lipids function? a. The ends of the lipids are attacked to each other b.a lipid is

Compared to other minerals, a mineral that is ranked higher on the Moh’s scale will be:

(7 − 3i) • (2 − i) 4 i 14 3i 11 − 13i < 14 − 10i

6.which of the words in the following sentence should be capitalized? who was the first roman catholic of the united states? A.who;Catholic;United States B.who;

Which technology played an integral role in the 1960 election? a. televisions b. radios c. computers d. automobiles

What is federal reserve system in a sentence?

what is the equation for sixteen is divided by the sum of a number q and 1. the result is 4

Hi everybody! I need help on an Algebra 1 question. 35 points for help. The length of a rectangle is (5x2 + 4x - 4) units, and its width is (4x3 - 2x + 6) un