a. 4 sqrt 6
b. -2 sqrt 6
c. -8 sqrt 6
d. 8 sqrt 6
Subtract (7 sqrt 6) - (3 sqrt 150)?
2009-12-29 1:24 pm
回答 (10)
2009-12-29 1:27 pm
✔ 最佳答案
c) , -8sqrt(6)Since 7sqrt(6) - (3sqrt(150))
= 7sqrt(6) - 15sqrt(6)
= -8sqrt(6)
Answer is c)
2009-12-29 10:24 pm
7â(6)-3â(150)
=7â(6)-3 â(25*6)
= 7 â(6)-3*5â(6)
=7â6-15â6
=-8â6 answer//
Answer is c.-8sqrt 6
=7â(6)-3 â(25*6)
= 7 â(6)-3*5â(6)
=7â6-15â6
=-8â6 answer//
Answer is c.-8sqrt 6
2009-12-29 10:07 pm
Subtract (7 sqrt 6) - (3 sqrt 150)?
7â6 – 3â150 = 7â6 – 15â6 = –8â6
a. 4 sqrt 6
b. -2 sqrt 6
c. -8 sqrt 6 .............................. correct answer
d. 8 sqrt 6
7â6 – 3â150 = 7â6 – 15â6 = –8â6
a. 4 sqrt 6
b. -2 sqrt 6
c. -8 sqrt 6 .............................. correct answer
d. 8 sqrt 6
2009-12-29 10:02 pm
150=2x3x5x5
\/'''150'''''=5\/'''6'''''
7\/'''6'''''' - 15\/'''6''''=-8\/'''6''''
God bless you.
\/'''150'''''=5\/'''6'''''
7\/'''6'''''' - 15\/'''6''''=-8\/'''6''''
God bless you.
2009-12-29 9:57 pm
7(sq rt 6) - 3(sq rt 150).
The sq rt 150 = (sq rt 25)(sq rt ) = 5(sq rt 6). Put that back into your original equation for the square root of 150.
7(sq rt 6) - 3(5)(sq rt 6) =
7(sq rt 6) - 15(sq rt 6). If you have 7a - 15a what would be the answer? - 8a. So in your problem:
Answer: - 8(sq rt 6). C.
The sq rt 150 = (sq rt 25)(sq rt ) = 5(sq rt 6). Put that back into your original equation for the square root of 150.
7(sq rt 6) - 3(5)(sq rt 6) =
7(sq rt 6) - 15(sq rt 6). If you have 7a - 15a what would be the answer? - 8a. So in your problem:
Answer: - 8(sq rt 6). C.
參考: Self
2009-12-29 9:45 pm
c. -8 sqrt 6
2009-12-29 9:34 pm
ANSWER : -8 sqrt 6
WORKING :
(7 sqrt 6) - (3 sqrt 150)
= 7 sqrt 6 - 3 sqrt ( 25 x 6 )
= 7 sqrt 6 - 3 sqrt ( 25 ) x sqrt ( 6 )
= 7 sqrt 6 - 5 x 3 sqrt ( 6 )
= 7 sqrt 6 - 15 sqrt ( 6 )
= ( 7 - 15 ) x sqrt ( 6 )
= -8 sqrt 6
WORKING :
(7 sqrt 6) - (3 sqrt 150)
= 7 sqrt 6 - 3 sqrt ( 25 x 6 )
= 7 sqrt 6 - 3 sqrt ( 25 ) x sqrt ( 6 )
= 7 sqrt 6 - 5 x 3 sqrt ( 6 )
= 7 sqrt 6 - 15 sqrt ( 6 )
= ( 7 - 15 ) x sqrt ( 6 )
= -8 sqrt 6
2009-12-29 9:34 pm
7â6 - 3â150
= 7â6 - 3â(2 * 3 * 5^2)
= 7â6 - 3(5)â(2 * 3)
= 7â6 - 15â6
= -8â6
(answer c)
= 7â6 - 3â(2 * 3 * 5^2)
= 7â6 - 3(5)â(2 * 3)
= 7â6 - 15â6
= -8â6
(answer c)
2009-12-29 9:29 pm
You need this simplification:
â150 = 5â6
Can you complete the subtraction now ? You can do it. You must do it.
QED
[- 8â6]
â150 = 5â6
Can you complete the subtraction now ? You can do it. You must do it.
QED
[- 8â6]
2009-12-29 9:28 pm
-8 sqrt 6
:-)
:-)
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