a3ngr1aceboo a3ngr1aceboo
  • 02-12-2016
  • Mathematics
contestada

What are the solutions to the equation x2 = 64?

A.
8 only

B.
32 and –32

C.
8 and –8

D.
32 only

Respuesta :

kittysage
kittysage kittysage
  • 02-12-2016
[tex]x^2=64[/tex]
[tex]\sqrt{x^2}=\pm\sqrt{64}[/tex]
[tex]x=\pm8[/tex]

[tex](\pm32)^2[/tex] is 1,024.
Also, all square root functions have a positive and a negative result.
Answer Link

Otras preguntas

d) A wire carrying a current of 10A and 2m in length is placed in a field of flux density 0. 15T. Calculate the force on the wire if it is placed: i) At 300 t
A nurse teaches a nursing student about the criteria that a client should meet in order to be admitted to a hospice. Which statement made by the nursing student
need help please and thanks​
hi help :) plz don’t be rude i’ve already had to leave a acc for ppl calling me and idio.t
Is dollars 250 is to be divided among Neymar Rohit Sharma and Nadal so that Neymar gets two parts Rohit gets three parts and Nadal gets 5 parts how much money w
describe the polymerase chain reaction using an analogy
Can someone list the amount of numbers that have a GCF of 7 and a product of 490?
3. Alexa wrote the reciprocal of the mixed number incorrectly. Explain why she is incorrect and provide the correct reciprocal.
Copper (II) Sulfate pentahydrate, CuSO4 X 5H20 is heated in an open crucible to remove the water. (a) Diagram the lab set up clearly labelling the key chemicals
Algunas herramientas del escultor son la arcilla y la piedra. Los escultores pueden usar varios tipos de piedra para esculpir.¿Cuál es otro tipo de piedra que p