All Answers 358158 Answers

+3146

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V=(4/3)*pi*r^3

[input](4/3)*pi*(10cm)^3[/input]

adminMar 20, 2012

+3146

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[input]300000 * (1/48)[/input]

adminMar 20, 2012

+3146

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[input]1/4 + 1/3[/input]

least common multiple of 4 and 3:
[input]lcm( 4, 3 )[/input]

12/4 = 3
(3*1)/(3*4) = 3/12

12/3 = 4
(4*1)/(4*3) = 4/12

3/12 + 4/12 = 7/12

adminMar 20, 2012

+3146

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[input]81^(3/4) / 81^(1/2)[/input]

adminMar 20, 2012

0

GuestMar 20, 2012

+2

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this should not be a problem. Its the same as saying 3 multiplied by 4 = 12

uzoezie22Mar 20, 2012

0

the answer should be 12 considering 3x4 is 12

GuestMar 20, 2012

Mar 19, 2012

+3146

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[input]5 1/2 + 1/2[/input]

[input](1/2) * (1/3)[/input]

adminMar 19, 2012

+3146

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[input]82.4%[/input]

[input]0.824[/input]

adminMar 19, 2012

+3146

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[input]7*0.01eur+3*0.5eur+2*1eur[/input]

[input]53g+7*2.30g+3*7.8g+2*7.5g in g[/input]

adminMar 19, 2012

+3146

0

[input]5.5[/input]

5.5 = 5+ 1/2 = 5/1 + 1/2 = (2*5)/(2*1) + 1/2 = 10/2 + 1/2 = 11/2

adminMar 19, 2012

+3146

0

keronekow:
y+4x=27
xy+x=40

[input]solve( y+4x=27, x*y+x=40 )[/input]

adminMar 19, 2012

+3146

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[input]solve( F = 9/5 * C + 32, C)[/input]

adminMar 19, 2012

+3146

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[input]35 / 80[/input]

adminMar 19, 2012

0

440/200=2,2
-->
300+2,2 = 660

GuestMar 19, 2012

0

see
http://www.khanacademy.org/math/algebra/polynomials/v/factoring-trinomials-by-grouping-4

GuestMar 19, 2012

Mar 18, 2012

0

(9-10)-(-6)
-4

9-10 = -1

-(-6) = +6

-1+6=5

5 divided by -4 = -5/4 or negative one and one fourth

GuestMar 18, 2012

+3146

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poor john:
How long is the rope?

adminMar 18, 2012

0

r means recurring

GuestMar 18, 2012

+3146

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adminMar 18, 2012

+3146

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[input]12+16i[/input]
[input]abs(12+16i)[/input]
[input]arg(12+16i)[/input]

adminMar 18, 2012

+3146

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7^(6x)-2=10
7^(6x)-2+2=10+2
7^(6x)=12
logarithm on both sides:

ln( 7^(6x) ) = ln( 12 )
6x * ln( 7 ) = ln( 12 )
x = ln(12)/(6*ln(7))
x = 0.2128

adminMar 18, 2012

+3146

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adminMar 18, 2012

+3146

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[input]sin( 90 )[/input]

adminMar 18, 2012

+3146

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[input]solve( (x^2) + (y^2) = 16 , (4x^2) + (y^2) = 23 )[/input]

adminMar 18, 2012

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