Help with math !!1
(1) Evaluate sqrt9/16
(2) Simplify 7sqrt700
and finally
Simplify sqrt112x^4 assuming that x represents a positive number
Help Please
2007-02-05 15:21:47 · 7 answers · asked by CookFrNW 3 in Science & Mathematics ➔ Mathematics
1)
sqrt(9/16)
= +/- 3/4
2)
7sqrt(700)
=7sqrt(100*7)
=7*10*sqrt(7)
=70sqrt(7)
3)
sqrt(112x^4)
=sqrt(7*16x^4)
=4x^2sqrt(7)
2007-02-05 15:26:44 · answer #1 · answered by seah 7 · 1⤊ 0⤋
1. sqrt of 9/16 = square root of 9 / square root of 16 = + or - 3/4
2. 7 sqrt700 = 7 sqrt ( 7 x 100) = 7 sqrt ( 7 x 10^2)
you can pull out the 10
7 x 10 sqrt (7) = 70 sqrt (7)
3. sqrt112x^4 = sqrt (16 x 7 x x^4) = sqrt ( 4^2 x 7 x (x^2)^2)
you can pull out 4 and x^2
4x^2 sqrt (7) is your final answer.
2007-02-05 23:32:43 · answer #2 · answered by Ace 4 · 0⤊ 0⤋
it's easy,
1)u cn take separate sqrt in9 and 16
=sqrt(9/16)
=sqrt9/sqrt16
=3/4
2)7sqrt700
=7sqrt(7*100)
=7sqrt7sqrt100
=70sqrt7
sqrt112x^4
=x^2sqrt(16*7)
=x^2sqrt16*sqrt7
=4x^2sqrt7
2007-02-05 23:37:17 · answer #3 · answered by Sobanath 2 · 0⤊ 0⤋
sqrt(9/16)=3/4
7sqrt(7*100)
=70sqrt(7)
use calc. to simplify from this
4x^2(sqrt(6)) ans
2007-02-05 23:36:46 · answer #4 · answered by Anonymous · 0⤊ 0⤋
1) sqrt(9/16)=sqrt(9)/sqrt(16)=+/-3/4
2) sqrt(700)=10sqrt(7) because 10^2=100 and 100 x 7=700, so 7sqrt(700)=70sqrt(7)
3)sqrt(112 x^4)= sqrt(112)sqrt(x^4)=x^2sqrt(112)
2007-02-05 23:28:50 · answer #5 · answered by Anonymous · 0⤊ 0⤋
(1) 3/4
(2) 70*sqrt(7)
4*sqrt(7)x^2
2007-02-05 23:31:23 · answer #6 · answered by F B 3 · 0⤊ 0⤋
1.3/4
2.185.202.....
3.10.58300......x^2
2007-02-05 23:43:24 · answer #7 · answered by fallinglight 3 · 0⤊ 0⤋