2007-11-12 08:11:11 · 11 answers · asked by dario bernard 1 in Science & Mathematics ➔ Mathematics
p ² = 81
p = - 9 , p = 9
2007-11-16 05:08:27 · answer #1 · answered by Como 7 · 2⤊ 0⤋
9
2007-11-12 08:14:42 · answer #2 · answered by Steve B 6 · 0⤊ 1⤋
ifp*p=81, what is the value of p?
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P*P = P^2
P^2 = 81
P = 81^(1/2) =
plus or minus 9
+ - 9
if you are not told the sign
Answer: + - 9
*still confused? write back
2007-11-12 08:24:13 · answer #3 · answered by john_lu66 4 · 0⤊ 0⤋
square root of 81 is +9 or -9
2007-11-12 08:16:14 · answer #4 · answered by Aaron777 3 · 1⤊ 0⤋
pxp=81 9x9=81
2007-11-13 05:45:51 · answer #5 · answered by Ciara 6 · 0⤊ 0⤋
p=9
9x9=81
2007-11-12 08:15:02 · answer #6 · answered by mixed up 2 · 0⤊ 1⤋
is the star multiplication, or power. if it is multiplying, the answer is 9 or -9, if it is to a power than the answer is very hard to find because it has to be a decimal.
2007-11-12 08:16:24 · answer #7 · answered by pickle 2 · 0⤊ 1⤋
I can't believe how many of you forgot negative 9.
2007-11-12 08:16:34 · answer #8 · answered by KEYNARDO 5 · 1⤊ 0⤋
p is either 9 or -9.
2007-11-12 08:14:43 · answer #9 · answered by S. B. 6 · 1⤊ 0⤋
OK
p*p = 81
p^2 = 81
p = sqrt 81
p = + or - 9
Hope that helps.
2007-11-12 08:15:00 · answer #10 · answered by pyz01 7 · 1⤊ 0⤋