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#1 2006-06-08 05:00:44
- needhelpplease
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Algebra problem
1.If N = h(A²-B²),find N when h = 7,A = 5 and B = 3
2.IF V = hr², find V when h = 5 and r = 3
#2 2006-06-08 05:18:40
- luca-deltodesco
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- Registered: 2006-05-05
- Posts: 1,470
Re: Algebra problem
just substitue the values
N = 7*(5^2 - 3^2) = 7*(25-9) = 7*14 = 91
V = 5*3^2 = 5*9 = 45
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#3 2006-06-08 18:02:14
- numen
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- Registered: 2006-05-03
- Posts: 115
Re: Algebra problem
Just a correction...
1) N = 7*(5^2 - 3^2) = 7*(25-9) = 7*16 = 112 
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#4 2006-06-12 03:18:51
- the_wildcats
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Re: Algebra problem
The answer to the first one is 112. Im so nervous...ive got my math exam tomorrow and i need an 80% to pass the course...keep your fingers crossed:P:P:P
#5 2006-06-12 03:20:20
- the_wildcats
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Re: Algebra problem
Number 2 is 45
#6 2006-06-12 03:22:51
- the_wildcats
- Guest
Re: Algebra problem
luca-deltodesco, 25-9 is 16 dont worry i do it all the time:P
#7 2006-06-12 03:25:48
- luca-deltodesco
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- Registered: 2006-05-05
- Posts: 1,470
Re: Algebra problem
luca-deltodesco, 25-9 is 16
oooh yeh 
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