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

Croquet balls must have a mass of 0.50 kg. A red croquet ball, moving at 10 m/s, strikes an at-rest green croquet ball head-on. The red ball continues moving at

At what point after treatment will the group treated with pesticide probably reach its pretreatment population?

What is the percent composition of Ca(C2H3O2)2? Select one: a) 25.3% Ca, 30.4% C, 3.8% H, 40.5% O b) 40.4% Ca, 24.2% C, 3.1% H, 32.3% O c) 6.67% Ca, 26.67% C, 4

What is the function of cu

Find the nth term of this quadratic sequence4,9, 16, 25, 36,

List two reasons why someone looking at a career in the Energy cluster might want to focus on new technology, such as energy-efficient products or sustainable e

How does an author use the element of surprise in fiction? a.) withhold information from the reader until a specific time b.) give a hint or clue of will happen

suppose line AT bisects ∠CAR. if ∠CAT = 5x and ∠CAR = 9x +7, what is ∠TAR

How does the spring constant of the smaller springs relate to that of the original spring? Choose the correct explanation. A) The spring constant of each half w

what is the dimensional consistency of s = Vot + 1/2 at2