03/11/14

Will my answer always be in parenthesis?
Like factoring a difference between two squares
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12/04/13

sect-cost=tantsint
im doing trig identities and i cant prove them. please show work
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11/30/13

f'(x) = 2(2/3)x-1/3 - (5/3)x2/3 = (4/3)x-1/3 - (5/3)x2/3 f"(x) = (4/3)(-1/3)x-4/3 - (5/3)(2/3)x-1/3 = (-4/9)x-4
how would I set the 1st and 2nd derivatives to zero and solve for x ?
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11/12/13

Find the value of x so that the area under the normal curve is between...
EDIT: μ = 200 and σ = 25.   1. Find the value of x so that the area under the normal curve between μ and x is .4525 and the value of x is less than μ.   2. Find the value of x so that the area... more
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11/06/13

Out of 250 students who failed in an examination, it was revealed that 128 failed in mathematics,87 failed in physics and 134 failed in chemistry.31 failed in
maths and physics,54 failed in chemistry and mathematics,30 failed in chemistry and physics.find how many candidates failed in: [a]in all the three subjects.[b]in mathematics but not in physics.[c]... more
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10/25/13

Need to Find X
y = (x * .4175) + x where y = 874.90
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10/24/13

675 is what percent of 900
i dont have any idea how to do this its for my math hw and its due tomorow plzzzz help
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10/22/13

x/+2=x/3-3 ?
I cannot figure this out...
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10/21/13

how to write a two column proof, proving corollary 4.4
learning about two column proofs and triangles
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10/21/13

2x_=(2x5)+(2x1)
2x_ =(2x5) + 2x1) what is the answer?  
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10/17/13

solving for x
Solve for x: 9c-4x=7 
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10/17/13

True or False and how do you find the answer.
Suppose that a judges decisions follow a binomial distribution and that his verdict is correct 90% of the time. In his next 10 decisions, the probability that he makes fewer than 2 incorrect... more
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10/10/13

How do I simplify an expression
How do u simplify expressions  
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10/10/13

Name the property that justifies each statement
1. mABC = mDEF and mDEF = mABC 2. AB = CD, CD = EF. therefore, AB = EF.  3. x + 7 = 5; x + 7 - 7 = 5 4. X = y; if x = 18, then y = 18 5. A = A
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10/10/13

why is heat transfer, conduction, and convection important?
I got caught with a question I don't know how to explain. Help please!
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09/09/13

How do you simplify this expression?
32 ^  4/5  -  32 ^ -4/5
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