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pythagorean/722758: My triangle has two sides of 13cm and 12cm. I squared them both and got 144 +169=c^2. It was then 313=c^2. From there I'm stuck I need to find the radical form or something like that but it doesn't match with the times table my teacher have me. Help! 1 solutions
Answer 442853 by solver91311(16897) on 2013-03-06 15:02:30 (Show Source):
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Polynomials-and-rational-expressions/722701: How to Factor Completely and show the steps:
1. t^2 + 4z^2
2. y^3 = y^2 -4y -4
Solve using ac method and show the steps.
9t^2 + 5t -4 1 solutions
Answer 442825 by solver91311(16897) on 2013-03-06 13:01:50 (Show Source):
You can put this solution on YOUR website!
does not factor over the Real numbers. If you want to factor over the complex numbers, write back and say so.
Does not have rational factors. Suspect the equals sign between and is a typo (it factors nicely if that is a + sign instead).
Cannot be solved. You can't "solve" something that doesn't have a relational operator (=, <, >, etc.). It can be factored, but that is not what you asked.
1. Pay more attention to what you have written and correct any errors BEFORE you hit "Send"
2. Read, understand, and follow the written instructions for posting. Namely, complete explanation of what is required, complete explanation of what you do not understand, a complete description of what you have tried, and -- pay careful attention now -- ONE problem per posting.
John

Egw to Beta kai to Sigma
My calculator said it, I believe it, that settles it
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Linear-equations/722174: y=ax^2+bx+c
(0,29.8): 0a+0b+1=29.9
(2,29.9): 4a+2b+1=29.9
(4,30.1): 16a+4b+1=30.1
Find the values of a, b, and c such that y=ax^2+bx+c models this data. (Make into one equation). 1 solutions
Answer 442658 by solver91311(16897) on 2013-03-05 12:28:25 (Show Source):
You can put this solution on YOUR website!
Where did you get the "1" in each of your equations?
When you get the three equations in a, b, and c written correctly, solve the 3X3 system. Hint: Since the coefficients on a and b are zero in the first equation, you can determine the value of c directly and the system degenerates to a more easily solved 2X2 system.
John

Egw to Beta kai to Sigma
My calculator said it, I believe it, that settles it
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Proofs/722156: I need help solving this proof.
1.T = (L > K)
2.~N * K
Conclusion: T
* = and
> = If..Then
I can use all 19 rules
Thanks! 1 solutions
Answer 442654 by solver91311(16897) on 2013-03-05 12:01:55 (Show Source):
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Square-cubic-other-roots/721841: 1.what is the cubed root of 7 divied by the cube root of 3?
2.What is the cube root of 81 divied by the cube root of 3?
3.The cube root of 14 minus the cubet root of 112?
4.The cube root of 14 times the cube root of 13? 1 solutions
Answer 442527 by solver91311(16897) on 2013-03-04 17:31:46 (Show Source):
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Permutations/721792: If p, r and s are three different prime numbers greater than 2, and n= p*r*s, how many positive factors, including one and n, does n have? 1 solutions
Answer 442504 by solver91311(16897) on 2013-03-04 16:01:44 (Show Source):
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Rational-functions/721729: The cost for using 20 HCF of water is $33.08, and the cost for using 57 HCF is $83.03. What is teh cost for using 31 HCF of water?
---What is the formula used to find the answer? 1 solutions
Answer 442480 by solver91311(16897) on 2013-03-04 13:28:11 (Show Source):
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