Seudónimo Seudónimo

20-10-2017
SAT

contestada

If x=9 is a solution of the equation x² -a=0, which of the following is a solution of x^4 - a=0?

A: -81
B: -3
C: 0
D: 9
E: 81

Respuesta :

mreijepatmat mreijepatmat

21-10-2017

x² - a = 0. If x = 9, then:

9² - a = 0 or 81 =a
So a= 81(E)

Answer Link

Otras preguntas

what is dark poetry? thanks in advance

what does 'have a ball' mean?

what does it mean to 'kick the bucket'?

what is dynamics and music?

Vicki puts 10 books on a shelf.The 10 books take up 28 centimeters.What is the mean (average) thickness of her books?= 2.8 cmThe shelf is 120 centimeters long.V

Jason is 5 years older than bill,and bill is twice as old as sharon.how old is jason ?whic expression represent the best way to solve the following problem? A.2

What is it important that carbon is recycled?

can you give me some simple project ideas and how to do it for ancient egypt?

7x-8x+4=5x-2 solve for x

what rule applies most closely to this word? avail-