my answer is 15
2006-08-13 09:44:25 · 12 answers · asked by Retta 1 in Education & Reference ➔ Homework Help
Looks like 72 to me...
2006-08-13 11:16:29 · answer #1 · answered by 42ITUS™ 7 · 0⤊ 0⤋
W=2
2006-08-13 09:51:59 · answer #2 · answered by Brian 3 · 0⤊ 0⤋
2
2006-08-13 09:49:21 · answer #3 · answered by Anonymous · 0⤊ 0⤋
w=2
2006-08-13 09:51:13 · answer #4 · answered by Anonymous · 0⤊ 0⤋
Change by substitution
square root of 3 = 15 - 9 (6)
Thus 3W = 6 x 6 (36)
W = 36/3 (12)
2006-08-13 09:50:25 · answer #5 · answered by quatt47 7 · 0⤊ 0⤋
3w+9=15
1. First, you subtract 9 from both sides.
3w=6
2. Divide each side by 3.
w=2
3. Find the square root of both sides.
The square root of w=Positive square root of 2 or Negative square root of 2
2006-08-13 09:54:18 · answer #6 · answered by Darkwings 2 · 0⤊ 0⤋
72 is correct. First square both sides of the eqn to get rid of the radical. This gives you 3w+9=225. Subtract 9 from both sides.
This results in 3w=216. Then divide both sides by 3, isolating the variable. w=72.
2006-08-13 13:54:41 · answer #7 · answered by curious 3 · 0⤊ 0⤋
Is the square root over 3w, or the whole quantity (3w+9).
If it's just over 3w:
sqrt(3w) =6 by subtracting 9 from both sides
Square both sides: 3w = 36
Divide by 3: w=12 **********
BUT, if the sqrt covers the whole quantity 3w+9, start by squaring both sides first:
3w+9 = 225 Then sub. 9 from both sides:
3w = 216
Div. by 3: w=72 ****************
2006-08-13 10:36:13 · answer #8 · answered by jenh42002 7 · 0⤊ 0⤋
the square root of 2 (approx 1.414)
3w+9=15
3w=15-9
3w=6
w=6/3
w=2
sq.root of 2 = approx 1.414243562
2006-08-13 09:52:09 · answer #9 · answered by EricC 2 · 0⤊ 0⤋
First step minus 9 from both sides of the equal sign which gives you 3w=6.
Secondly isolate the w by dividing 3 by both sides getting the answer w=5.
I hope that my answer helps. :)
2006-08-13 12:04:12 · answer #10 · answered by zain 2 · 0⤊ 0⤋
w=72
(is the square root bar over all of '3w+9'?)
2006-08-13 09:51:10 · answer #11 · answered by Anonymous · 0⤊ 0⤋