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

Why can air pollution be a problem even if you do not live next to a factory?

Which statement best describes the first railroad line in Kansas?

1. Kobe Bryant is a great basketball player. He gave me an autograph one time. *Why is this thesis statement poorly written?

1.If a line passes through the origin, it passes through the point (0, 0) *TRUEFALSE2.What is the gradient of the line which passes through the points ( -3, 0 )

4. Contoso, Ltd. has a vigorous Office 365 and Azure cloud-service presence. They've incorporated their on-premises Active Directory Domain Services (AD DS) inf

please with that please

In the following drawing, Silvia is introducing José to the math teacher, Sr. Torres. Complete the speech bubbles with appropriate expressions.

Help me ASAPNonsense = Report

Paul took 29 minutes to walk to the bus stop. If he waited 15 minutes for the bus and the journey took 45 minutes more, how long did it take Paul for the entire

tác giả của bài Lão Hạc