kenzbecker kenzbecker

12-04-2018
Mathematics

contestada

Explain why the square root of -64 is undefined but the cubed root of -64 is defined in the real number system

Respuesta :

iTSjUstRyaNt iTSjUstRyaNt

12-04-2018

Because there is no number that could be multiplied BY ITSELF and still be negative:
-2 x -2 = 4
2 x 2 = 4
But, cubed root works because a negative can be three times and still be negative:
-4 x -4 x -4 = -64
Hope this helps!

Answer Link

Otras preguntas

To define a picture plane, a two-dimensional artist must establish a. the borders of the artwork. b. specific atmospheric perspective. c. a vanishing point a

Which of the following events is a example of a revolution? a. A group of protesters hang posters that say the current president is not good for their country.

Why does Mark Twain use humor in "A Cub Pilot"?

What is the perimeter of this triangle expressed as a polynomial: Side A: 8x+2 Side B: 5x-4 Side C: 9x+3 Please and thank you

What is thethe protein-assembly factories of the cell, are present in prokaryotic cells, animal cells, and plant cells.

Which has a mismatch between subject and modifier? Though not the prettiest one at the fair, I was sure my cake was the tastiest. Though it wasn't the prettie

Complete the analogy below using the same relationship. shark : great white :: whale : _______ A) enormous B) humpback C) gray D) marine life

Why are phytoplankton essential to aquatic life zones? filter pollution from water provide basis of food chains moderate water temperature produce chemicals tha

Which number sentence below is not correct? 24.154 < 24.15 23.07 < 23.072 24.67 = 24.6700 28.045 > 28.044

What specific steps did Adolf Hitler take to rejuvenate Germany’s military and territorial power in the 1930s, how was the Munich Conference meant to halt Nazi