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

Serena paid a tax of $288 on a house assessed at $48,000. Using the same tax rate, find the tax on a house assessed at $59,000.

Within any large animal population, there is _______ a variety of traits. And between different animal populations, there is _______ a variety of traits. A. n

Could someone give me a basic lesson on how to convert fractions into decimals? I have a retest coming up

Please help to answer ASAP

Explain how to solve the equation and how to check the solution. 40 = 8y

What is the rythme pattern in this stanza

anais bought 2 1/2 yards of ribbon. she had 2 feet and 8 inches of ribbon left after trimming some curtains. how many inches of ribbon did anais use to trim the

Find the missing length.

Choose the items that are associated with our second President of the United States, John Adams. The only Federalist to serve as President. The Quasi-War with

If rain is falling at a rate of 2.56 inches per hour, how much rain would you expect after 3.75 hours

good job