Seudónimo
Seudónimo
20-09-2016
Mathematics
contestada
If 4a^2 = 144 then a is?
Respuesta :
Аноним
Аноним
20-09-2016
4a²=144
a²=144/4
a²=36
a=⁺₋√36
a=⁺₋6
Answer: we have two values for a; a=-6; and a=6
we check it out:
if a=-6
4(-6)²=4*36=144
if a=6
4(6)²=4*36=144
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