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

What is the proper way to say the plural form of octopus?

From what social class did many puritans in england come? the professional class the middle class the lower class royalty

a contractor estimates that he can paint a house in 5 days using 6 men. if he actually uses 5 men for the job, how many days will they take to paint the house?

In the constitution where is the right to trial by jury found

What is 89,659 rounded to the nearest hundred thousand

You just purchased a parcel of land for $10,000. if you expect a 12% annual rate of return on your investment, how much will you sell the land for in 10 years?

Which of the following is an example of an aerobic activity that improves cardiovascular endurance? a. Step aerobics b. Weight lifting c. Yoga d. Breathing exer

A small college has 36 math majors, 78 engineering majors , and 156 business majors in its graduate programs. What’s is the ration of engineering majors to math

express 24 cm in inches? 60 inches , 24 inches, 12 inches , 9.6 inches

During the Civil War, what was the reason for secession of the Southern States?