04/29/14

Help me solve my word problem
When interest is compounded continuously, the balance in an account after t years is given byP(t) = P0ekt, where P0 is the initial investment and k is the interest rate. Suppose that P0 isinvested... more
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04/29/14

How do I find what these two problems equal? y=-2x+14+y=1.5x-0.4
I need help on how to do this 
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04/29/14

how do you solve exponents with letters
i dont know how to do this (2x^7y^-3z^18)
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04/28/14

Write a system for this?
I need some serious help! Without it, I cannot become a pokemon master!
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04/27/14

Prove that cot a - tan a = 2 cos2a / sin2a
Help!!! I"m so confused I've been writing in circles! 
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04/27/14

What is solution
log tan 1degree + log Tan 2degree .......+ log Tan 89degree
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04/27/14

Domain, x-intercepts, y intercepts
Let  P(x)=-2x^4+2x^3+12x^2 When factored, P(x)= -2x^2(x+2)(x-3) (a).State the domain. (b) State the x-intercepts: (c) State the y-intercept:
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04/27/14

solve and write interval notation
Solve  (x^2-9) ≤0  and write interval notation for the solution set. Show careful algebraic work/explanation.              x
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04/27/14

(12a^3-3a^2-5a+14)/(4a+3)
Polynomial long division. Need help please!
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04/26/14

help finding terms
    1.  write the first three terms of the expansion of (a - b)^6     2.  what are the last three terms of (a - b)^7   thanks
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04/26/14

help finding the sum of infinite series
  how do I find the sum of the following infinite series:     1.  1/2 + 1 + 2 + 4......   2.  9 - 3 + 1 - 1/3 + 1/9 .....     thanks
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04/26/14

Rate of work problem
If Andy and his wife charlotte can paint the house in 3.5 hours, and charlotte and her daughter nancy can paint it in 4 hours, and all three can paint it in 3 hours, how long would it take... more
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04/23/14

(2x^2-20xy+50y)
Factor each polynomial completely... I just don't get it. At all. I pay attention in class, but it just doesn't register in my mind. Please help me with the problem. 
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04/21/14

solve the equation
tan (2x) -tan(x) = 0 
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04/17/14

please evaluate the determinant of the given matrix
[7,-5, 2, -4, 9, -4, 0, 6, 10]
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04/16/14

help solve this system
x-y=4 x-2y=10   I came up with   y=-4 2/3   Or y= -2   And I don't think either works back in the system:(
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04/16/14

construct a truth table for the compound proposition negation,p,disjunction(variable r,implication,negation variable q)
(negation,p,disjunction(variable r,implication,negation variable q
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04/16/14

Let A = {15, 25, 35, 45, 55, 65} and B = {25, 45, 65}. What is A n B
need help trying to figure out this problem no idea how to do it 
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04/14/14

how long does it take train B to catch up to train A?
Train A leaves a station traveling at 48 kilometers per hour. Two hours later, train B leaves the same station traveling in the same direction at 58 kilometers per hour. 
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04/14/14

tom is 4 times as old as todd. in 5 years toms age will be 13 years more than 2 times as old as todd. how old is tom?
i really need help figuring out this problem. thank you
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04/14/14

you invest $5,000 stocks bonds paying 7% and 2%, interest both investments after one year is $225. For the following problems
mathematical expression for the total amount of money invested?   mathematical expression for the total amount of money earned?   how much money was invested in stocks?    
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04/14/14

Probability with Combinations?
Please help me! I'm so confused! Please include all steps AND helpful tips that will help me solve these kinds of problems (problems with probability and combinations)! Thanks a lot!   A 5 card... more
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04/14/14

a couple buys one bag of popcorn and two drinks for $5.75. a group of teenagers buys 2 bags of popcorn and 5 drinks for $13
I have to find the price of each bag popcorn and each drink. Please help!!
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04/14/14

the sum of three consecutive integers is (-204) what is the largest number?
can you help me with this problem so i know what to do next time? Can you please explain it the easiest way there is? thanks
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04/14/14

Eight times the reciprocal of a number equals 2 times the reciprocal of 4. What is the number?
how to solve geometry word problems
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