05/21/16

Arithmetic and Composition
The cost to manufacture a product is proportional to the quantity produced, with a cost of $200000 dollars per day when 800 items are produced. The cost to store n items is proportional to the... more
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05/20/16

problem solving by conditional probability
 conditional probability     Professional athletes who play in the NLF are subject to random drug tests. Suppose the probability that the test shows a positive result given that the athlete is... more
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05/19/16

Determine if the relationship between each pair of values is a direct variation or an inverse variation
(0.8, 4), (1.6, 2), (5, 0.64)
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05/19/16

Can someone help me solve and check
sqrt(-8x^3)
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05/19/16

Can someone help me solve and check
sqrt(2x-3)=3-x
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05/18/16

Find the area of a sector of a 16 cm diameter circle.
 Jason wants to make a spinner for a new game. The spinner is a circle divided into eight equal pieces with the diameter of 16 cm what is the area of each piece?
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05/18/16

Four cups of pure water are added to a 20-cup bowl of punch that is 75% juice. What percentage of the new punch is juice?
OriginalAddedNewAmount of Juice15 cups0 Amount of Punch20 cups4 cups 27%37.5%62.5%75%
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05/16/16

9x^2 + 9y^2 = 63
You have to find the radius of the circle
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05/16/16

A swimming club has 16 members, of which 2 are males and the rest are females. What is the ratio of females to males?
I need help too this Question? its hard.
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05/16/16

Frank can type a report in 4 hours and James takes 7 hours how long will it take the two of them typing together
It's a word problem 
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05/16/16

April and Blake went running. Blake ran about 4 miles farther than April. Added together, they ran a total of 16 miles. How far did April run?
x=April's distance 4+x= Blake's distance
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05/16/16

David is twice as old as Sara, and Jessica is three times as old as Sara. If al thir ages add up to 30, how old is David?
x=Sara's age 2x=Davids age 3x=Jessica's age Please help I need the answer before 10 o'clock today
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05/16/16

A function question about transformations...
The function F(X)=(square root) X is transformed solely by using translations and reflections to produce g. The domain of g is all real numbers greater than or equal to -7, and the range is all... more
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05/16/16

How far is point B from the fire?
Point B is 9 miles east of point A. Point a  is 11 degrees 40 minutes north east from the fire. Point B is 28 degrees 40 minutes north east from the fire.
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05/15/16

Mix of peanuts and cashews how many of each?
Peanuts cost $7 a pound. Cashews costs 9$ a pound. There is a mixture of peanuts and cashews that weigh 10 pounds and costs$84.
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05/14/16

A car travelling with 5/7 of its actual speed covers 42 km in 1 hr 40 min 48 sec find actual speed car
A car travelling with 5/7 of its actual speed covers 42 km in 1 hr 40 min 48 sec find actual speed car     i know the solution what i need to find out that how to convert time in to... more
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05/14/16

.solve the triangle?
Angle C = 96 degrees Angle A and B = Unknown a = 6 b = 4 c = unknown 
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05/14/16

word problem doubt
A train running with 7/11 of its own speed reached a place in 22 hours how much time could be saved if the train would have run at its own speed now let train speed be x                        D... more
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05/12/16

Story problem Probability
A bicycle-rental shop has ten bicycles for rent. On an average day, 60% of the bicycles are rented out. To the nearest whole percent, what is the probability that on one day, only four of ten... more
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05/12/16

How to factor this ?
Hi, I know how to factor when the exponent is squared but the 4 exponent is confusing me.    x4 —13x2+36
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05/12/16

How to reduce exponential equation to quadratic equation form?
I was teaching a class and came across a question related to quadratic equations. Question was about reducing given exponential equation to quadratic form and solve by factorization later. I would... more
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05/08/16

Help!!!!! please!
How much heat does it take to raise the temperature of 3.5 kg of water from 25C to 46C? The specific heat of water is 4.18 kJ/(kg C). Use Q = mc(Tf - Ti). A. 310 kJB. 88 kJ C. 74 kJD. 160 kJ
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05/08/16

Finding the price per share of two stocks
Norman and Suzanne own 35 shares of fast food restaurant stock and 63 shares of a toy store company. At the close of the markets on a particular day in 2004, their stock portfolio consisting of... more
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05/07/16

jose wants to simplify 24+9 using the greatest common factor and the distributive property what expression should he write?
jose whants to simlify 24+9 sung the greatest common factor and the distributive property. what expression should he write?
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05/07/16

Write in standard form the equation of the line that passes through the given point and has the given slope
(6,-1) and M=0
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