langelajlabAnnett langelajlabAnnett

07-06-2016
Mathematics

contestada

Solve the equation. If necessary, round your answer to the nearest tenth.

4x2 = 121

A.
2.75, –2.75

B.
5.5, –5.5

C.
11, –11

D.
30.25, –30.25

Respuesta :

08-06-2016

x^2=121/4
x^2=30.25
x=+/- 5.5
so B

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