3√6 - 6 √150
a. 27√6
b. 2√6
c. -3√6
d. -27√6
2007-12-12 07:33:43 · 6 answers · asked by . 1 in Science & Mathematics ➔ Mathematics
d
3√6 - 6 √150 = 3√6 - 6√(25*6) = 3√6 - 6√25*√6 = 3√6 - 6*5*√6 = 3√6 - 30√6 = 27√6
2007-12-12 07:36:57 · answer #1 · answered by antone_fo 4 · 0⤊ 0⤋
3â6 - 6â150 =
3â6 - 6â(25 X 6) =
3â6 - 6 X 5â6 =
-27â6
Ans. d
2007-12-12 07:56:02 · answer #2 · answered by Joe L 5 · 0⤊ 0⤋
3â6 - 6â150
= 3â6 - 6â(25)(6)
= 3â6 - 6(5)â6
= 3â6 - 30â6
= -27â6 --- or answer D
I showed you all the steps so you can solve the next one on your own.
2007-12-12 07:41:19 · answer #3 · answered by Don E Knows 6 · 0⤊ 0⤋
D. Because
6 sqrt(150) = 6 sqrt(25 *6) = 6*5 sqrt(6)
3 sqrt(6) - 30 sqrt(6) = -27 sqrt(6)
2007-12-12 07:40:09 · answer #4 · answered by Kate 4 · 0⤊ 0⤋
3 sqrt(6) - 6 sq rt(150)
First find the factors of 150
2)150
_____
5) 75
_____
5) 15
_____
3) 3
_____
1.
Hen ce 150 = 2 x 3 x 5 x 5
sq rt 150 = sq rt (2 x 3 x 5 x 5)
sq rt 150 = 5 sq rt(6)
Therefore
3 sqrt(6) - 6(5)sqrt(6)
3 sr rt(6) - 30 sq rt(6)
(3 - 30)sq rt(6) =
-27sqrt(6) => Ans; 'd'.
2007-12-12 07:41:28 · answer #5 · answered by lenpol7 7 · 0⤊ 0⤋
as above except answer is -27sqrt6 or (d)
2007-12-12 07:44:21 · answer #6 · answered by justforfun_1811 3 · 0⤊ 0⤋