michaelluna104
michaelluna104 michaelluna104
  • 17-10-2019
  • Mathematics
contestada

5. Use any method to solve the equation. If necessary, round to the nearest hundredth.
8x2 - 48 = 0
O 0.41, -0.41
O 6.93, -6.93
O 2.83,-2.83
2.45, -2.45

Respuesta :

mberisso
mberisso mberisso
  • 17-10-2019

Answer:

2.45, -2.45

Step-by-step explanation:

Since the equation has only one term in the unknown "x", we can solve for it isolating "x" on one side of the equal sign:

[tex]8x^2-48=0\\8x^2=48\\x^2=\frac{48}{8} \\x^2=6\\x=+/-\sqrt{6} \\x=+/- 2.449[/tex]

Which we can round to: x = - 2.45 and x = 2.45

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