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

Variable c is 5 more than variable a. Variable c is also 3 less than variable a. Which pair of equations best models the relationship between c and a? c = a −

How many genotypes are possible for the offspring of a homozygous male and heterozygous female.

Over which of the following domains of governance do state governments NOT have authority?

Which group contains the names of three Latin American "freedom fighters" of the Independence era?

Which was an impact of the Pan-African movement in the 1920s and 1930s? Pan-African conferences allowed African nationalist intellectuals to meet and exchange i

what temperature is 10 degrees higher than minus 7 degrees

Cowboys borrowed their dress, skill sets, and tools from which of the following cultures?

Which important member of the feudalism system am I? I was hired to protect the kingdom. For my service in the standing army, I received a part of the kingdom's

What does this quote tell us about the media influence during the Nixon investigation

How did the 1917 uprising against Czar Nicholas II push the United States into entering World War I? Americans had thought Czar Nicholas II was a poor military