11/06/13

4^2x-1=5^x+2
this question comes exponents 4ˆ²×-1=5ˆ×+²
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11/04/13

(20secqtanq) / (10-secq)^2
how do I simplify this problem using trig identities  
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11/03/13

can you help me with trigonometric equations?
cos θ=-sin(-θ) solve each equation on the interval 0≤θ<2Π
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11/03/13

Suppose Line L has the points (-2,4) and (6,2). If the following points are on the line (w, 1.5w) and (u, U+14), what is the value of w and u?
Suppose line L has the two points (-2,4) and (6,2). If the following points are on the line (w,1.5w) and (u,u+14),what is the value of w and u?
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11/01/13

examples of vectors going in the same direction
what are examples of motion
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10/31/13

prove derivative of x^n
I need help proving this derivative using the difference quotient.     prove derivative of x^n
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10/31/13

one acetic solution is 70% water, and another is 30% water. How many liters of each solution shoukd be mixed to produce 20 liters of solution that is 40% water.
Its Algebra 2 and its Applications Using Systems of Equations.
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10/31/13

Why is the derivative of the answer to an integral equal to the primary function which we want to take integral of? I'm looking for the concept.
I'm in a hurry to find the answer. Please help me. Thanks so much
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10/31/13

word problem trying to set up a formula to find the answer
AS i looked out into the park I saw rabbits and birds. I count 170 heads and 402 feet. How many rabbits and how many birds are there? (animals are normal, rabbit has 1 head-4feet and birds have 1... more
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10/30/13

Quarter 1 POW #5
Two cars race around a circular track, in opposite directions, at constant rates. They start at the same position and meet every 30 seconds. If they move in the same direction, they meet every 120... more
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10/30/13

finding the phase shift
let y = √20sin(4piex+7e-1) what is the amplitude? what is the period? what is the phase shift? 
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10/30/13

If f(x) = x2 + x and g(x) = x - 8, what is f(g(x))?
how di find the answer to my question
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10/30/13

graph the following logarithmic function: f(x)=log5 (x-1)-4
critical point and domain
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10/30/13

Trig Identities
Explain how you could determine the exact value of (sec 7pi/6) if you know the value of (sin 11pi/6). Prove with diagrams.I've no idea how to do this question that's worth 10 marks.
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10/30/13

how do i divide equation by the coefficient of x
like this one:     24x=34+7x
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10/30/13

a classroom has 29 students. The number of girls is 4 less than twice the number of boys. find each number
 Word Problem
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10/27/13

How long did James travel before Julio caught up with him?
James left the hardware store and traveled toward the capital at an average speed of 28 km/h.  Some time later Julio left traveling in the same direction but at an average speed of 35 km/h.  After... more
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10/26/13

Unsolved AP
Given sequence is 1,2,4,7,11,16... Find 125th term and also find sum.(good luck)
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10/25/13

How could you prove?
How could you prove cube root of (xyz)≤(1/3)(x+y+z)(geometric mean≤arithmetic mean)?
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10/25/13

If 48 marbles are to be divided between bill and carl in the ratio 3:5 how man y marbles will bill get?
Ratio word problems and proportions dealing with word problems.
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10/24/13

Use the quadratic formula to find any x-intercepts on the graph of the equation.
y=3x^2+3x-3     I have to options   Option #1   x=?????     simplify you answer. type an exact answer using radicals as needed. Use a comma to separate answers as needed.   Option #2  ??? ... more
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10/23/13

Prove that 1+sin(x)-cos(x) = 2sin(x/2)cos(x/2)+sin(x/2)
I have not managed to establish how sin(x/2) relates to cos(x)
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10/22/13

Write the function rule that gives the value of a dollar x years from today
Inflation runs at a steady 3% per year, then the amount that a dollar is worth today decreases by 3% each year. Write the function rule that give the value of a dollar x years from today.  
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10/22/13

Joint Probability: Let P(A) = .3, P(B) = .4 and P( A U B ) = .7 a. What is the joint probability of A and B? b. Find the probability of the complement of A.
How would I go about answering these questions? Also, how do you differentiate between solving them as a dependent or an independent event?   Let P(A) = .3, P(B) = .4 and P( A ∪ B ) = .7   a.... more
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10/22/13

Use the substitute x= tan y to show that
∫1       1     dx =¶  +  1 0  (1+x2)2         8      4
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