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

Fiona wrote the linear equation y = y equals StartFraction 2 over 5 EndFraction x minus 5.x – 5. When Henry wrote his equation, they discovered that his equatio

if alan had bought a figure at a discount of 5%, he would pay $20 less. How much would he pay if he had bought it at a discount of 20%

Locais que se usam saneamento básico as pessoas que andam descalça podem adquirir uma doença que as deixam fracas e anemias como se chama essa doença? A)Amarelã

f(x) = x2. What is g(x)?

Sales, Production, Direct Materials Purchases, and Direct Labor Cost Budgets The budget director of Gourmet Grill Company requests estimates of sales, productio

-4 = BLANK - 9 what is BLANK

The formula for the area of a circle is A= ar?m where A is the area and r is the radius. The subject of the formula is A. Rearrange the formula to make r the su

CAN SOMEONE HELP ME Effects of rays and chemicals on cell

At minimum, how far above the floor should food be stored? O a. 2 inches (5 cm) O b. 4 inches (10 cm) O c. 6 inches (15 cm) O d. 8 inches (20 cm)

How long will it take for a lump-sum investment to double in value at an interest rate of 1.5% per month, compounded continuously