beatrizsolano60 beatrizsolano60

23-05-2019
Mathematics

contestada

Express the square root of -80 in its simplest terms.

A- cannot be determined
B- 8i sqrt 10
C- 4i sqrt 5
D- 2i sqrt 20

Respuesta :

jimrgrant1 jimrgrant1

23-05-2019

Answer:

C

Step-by-step explanation:

noting that [tex]\sqrt{-1}[/tex] = i

Given

[tex]\sqrt{-80}[/tex]

= [tex]\sqrt{16(-1)(5)}[/tex]

= [tex]\sqrt{16}[/tex] × [tex]\sqrt{-1}[/tex] × [tex]\sqrt{5}[/tex]

= 4i[tex]\sqrt{5}[/tex] → C

Answer Link

Otras preguntas

An investigation was carried out to determine which of three antibacterial soaps is most effective. Four petri dishes labeled A, B, C, and D were set up. The sa

Explain why is the sky blue? When you got to space, the sky is black but if you look at sky from earth, it looks blue. Why is the sky blue and how does the colo

According to the food plate, which of these food groups should make up the largest portion of your diet? dairy grains protein

3.2-9x+7.1-3x= what is the answer

What difficulties did slaves face

An __________ is a portion of a country that is separated geographically from the mainland. a. exclave b. enclave c. autonomous region d. occupied territory

Theme is _____. an underlying concept a moral dilemma a lesson to readers an attitude toward life

Which aspect of this excerpt from Christina Rossetti's poem "Remember" would the imagists have disliked?

how many laps around the perimeter of the field would equal 1 mile

Watson and Crick worked out the structure of DNA molecules in 1952. This discovery affected the legal system that is used in society by changing how criminal tr