09/18/14

Walt made 10,000 last year. He invested part of his money at 7% and the rest at 9%. He made a total of $780 in interest. How much was invested at 9%?
If possible i would like to see the equation used for this problem, if not the answer will do just fine. If possible an explanation of how the problem was solved would be helpful.
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09/15/14

Word problem
A student working for a delivery company earns $57.50 per day plus $4.75 for each package she delivers. How many deliveries must she make each day to earn $200 a day?
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09/09/14

solve formula for the specified letter PV/T=pv/t for P
need the formula 
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09/06/14

How to solve for x
what is x if log underoot (x) 2 = 1/2?
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09/04/14

lim sqrt (5-x)-1 / 2- sqrt (x)
i need help, can you help me solve this answer. 
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09/04/14

write the equation of a line parallel to the given y=-1/2x+1;(4,2)
but passing through the given point.
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09/04/14

lim 1/(h+2)^2 - 1/4 / h as h approaches 0
Please help me, i don't understand this problem
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09/02/14

DOT MULTIPLICATION
ANGLE BETWEEN a AND b VECTORS IS 2π⁄3. |a|=3 |b|=4 FIND (3a-2b)(a+2b) 
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08/28/14

Let g(x)=x^2+x. Find formulas for the following functions. g(squareroot x)
g(x)=x2+x.   g(√x)  
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08/27/14

[-4,0) or (10,21) write this set in indicated notation in words.
My teacher taught this a little too fast and I do not understand how to do it properly. Please help!:)
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08/23/14

What is blank divide 5 equals 1/21
Plzzzzz help me I need help I really do plz I don't get this at all plzzzzzzzzz help meeeeeeee I seriousLu need help!!!!!!!!!!! I don't get it at allllllll
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08/15/14

how to factor x2 – x – 72
how to factor x2 – x – 72
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07/23/14

At the car dealership there are 58 cars, 28 cars are white and the rest are blue. Approximately what percentage is blue
a word problem  help me please 
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07/08/14

Whats -6(4-3x)-5x= ?x + ?
I dont know where to start from im really comfused especially on the x part ! Please help me 
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07/07/14

I need to have the combination for this question and the conclusion
Martha luis is having a dinner party, she has 8 different bottles of red wine and 6 different botttle of white wine on her rack. she wants 3 bottles of red wine and 1 bottle of white wine to serve... more
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07/07/14

on the right is an illustration of a tap root. what is the function of the small root hairs that branch off the main root?
I need help on this question
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06/26/14

An ice cream cone is shaped like a hemisphere on top of a cone. If the radius of the base of the cone is 3.5 cm and the height is 8.5 cm, find the volume of the
An ice cream cone is shaped like a hemisphere on top of a cone. If the radius of the base of the cone is 3.5 cm and the height is 8.5 cm, find the volume of the ice cream in and on top of the cone.
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06/25/14

Solve tan 2x - cot x = 0
Solve tan 2x - cot x = 0 for the interval [0, 2pi)
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06/25/14

(x -2)2 if the value = -8
how to solve by factoring if (x -2)2 has the value of negative 8
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06/15/14

Find the average or mean slope of the function on this interval
Consider the function f(x)=6-7x2 on the interval [-4,5].  Find the average or mean slope of the function on this interval (f(5)-f(-4))/(5-(-4))= By the Mean Value Theorem, we know there exists a... more
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06/12/14

vertex of the parabola #1
Question is, find the vertex of the parabola...   f(x)= x2-8x+23
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06/09/14

I need to check this equation
-9x+9>=4x-8 -9x?=4x-17 -13x ? = -17 x ?=  -17/-13 simplify further by dividing -17 by -13 x ? = 1.31
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06/07/14

solving equation
what number must be added to the following expression in order to complete the square?
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05/27/14

let f(x)=(3x)/(x-q) ...
q cannot be equal to x.   a) find the equations of the vertical and horizontal asymptotes of the graph of f.   the vertical and horizontal asymptotes to the graph of f intersect at the point... more
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05/27/14

top level will always have 2 blocks. How many levels can her pyramid have if Alicia has 200 blocks?
Alicia wants to build a block pyramid similar to the one shown. block pyramid the top level will always have 2 blocks. Alicia wants her pyramid to contain as many levels as possible. How many... more
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