axyoungcva axyoungcva

02-01-2017
Mathematics

contestada

Write (21 − 4i) − (16 + 7i) + 28i as a complex number in standard form.

Respuesta :

02-01-2017

standard form is a + bi
Combine like terms
5 + 17i

Answer Link

apologiabiology apologiabiology

02-01-2017

treat i as a placeholder
get into standard form (a+bi)

distribute stuf and move
21-4i-16-7i+28i
21-16-4i-7i+28i
5+17i

Answer Link

Otras preguntas

Explain how you can find the missing number in 3 4/5 / missing number = 2 5/7

what is -1.716 as a fraction?

What statement can you make about the classification of organisms using the animal tree and the plant tree

food A contains 150 calories in 3/4 of a serving. food B contains 250 calories in 2/3 of a serving. which food has fewer calories per serving?

Find each sum or difference? Do u just work the problem out and put the answer down?

PLEASE HELP MEthank you, and 15 points!!Gretchen and Ezia received equal scores on a test made up of multiple choice questions and an essay. Gretchen got 18 mul

Manuela planted 5 patches of beans Each patch had 8 rows of 27 beans plants. How many bean plants are in each patch? How many bean plants did Manuela plant in a

Fern rounded to the nearest ten to estimate 548-132. She subtracted 540-130 and got 410. Is Fern's estimate correct? Explain.

F=3gh+7c solve for g

Write the word form and tell the value of the underlined digit. 9,000,009 the first 9 is underlined