2007-08-26 12:44:23 · 8 answers · asked by firecrackergirl 1 in Science & Mathematics ➔ Mathematics
its is 16 since the square root of 16 is 4 and 4x2=8 so 8+3=11
2007-08-26 12:48:51 · answer #1 · answered by Jessi <3 2 · 0⤊ 3⤋
hmm...
answers are different because the equation is a bit confusing:
if it's the:(2y)^-2 + 3 = 11
y = 32
checking:
(32*2)^-2 + 3 = 11
64^-2 + 3 = 11
8 + 3 = 11
11 = 11
2007-08-26 19:58:24 · answer #2 · answered by toffer 3 · 0⤊ 0⤋
32x2 = 64 square root is 8
8 + 3 = 11
so its 32
2007-08-26 19:52:52 · answer #3 · answered by Anonymous · 1⤊ 0⤋
If this means sqrt(2y+3) = 11 then y = 64
If this means sqrt(2y) + 3 = 11, then y = 32
You should use paretheses to make clear which one you mean.
2007-08-26 19:56:35 · answer #4 · answered by ironduke8159 7 · 0⤊ 1⤋
the right answer is 32.
((sq.rt of) 2y) + 3 = 11
((sq.rt of) 2y) + 3 - 3 = 11 - 3
((sq.rt of) 2y) = 8
sq.((sq.rt of) 2y) = sq.(8)
2y = 64
2y/2 = 64/2
then y=32
2007-08-26 19:55:44 · answer #5 · answered by Cesar F 2 · 1⤊ 0⤋
sqrt(2y) + 3 = 11
sqrt(2y) = 8
2y = 64
y = 32
2007-08-26 19:50:47 · answer #6 · answered by vlee1225 6 · 1⤊ 0⤋
y^.5 +3 =11
y^.5 =8
y =64
2007-08-26 19:51:46 · answer #7 · answered by William B 4 · 0⤊ 1⤋
ummmmmmm obviously 64
2007-08-26 19:49:27 · answer #8 · answered by MoneyFace 2 · 0⤊ 2⤋