06/14/13

How do you rewrite expressions using the distributive property
rewrite expressions using the distributive property -7/3-7/3-2/3   I can't figure out this at all; on my math lab they came up with the answer -14/3 and I don't know how they came up with that... more
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06/14/13

What formula should I use to solve the question
In a political poll, 2/5 of  the respondents said they would vote for a certain candidate.  Of these, 1/3 were men.  What fraction of all respondents that voted were women?
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06/13/13

a cylinder has a surface area of 402 cm^2. The height is three times greater than the radius. What is the height of the cylinder?
what i did: 402 = 2πr^2+2πr(3r) how do i separate r? 
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06/13/13

Find the horizontal and vertical components of this force?
A child pulls a sled through the snow with a force of 50 Newtons exerted at an angle of 30 degrees above the horizontal. Find the horizontal and vertical components of this... more
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06/10/13

geometry: one endpoint of PQ is (-2,4). the midpoint of PQ is M (1,0).
 explain how to find the PQ.
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06/09/13

CH3COOH + H2O
complete the following ionization reactions
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06/09/13

linear equation
Solve the systems of linear equations by using the method of substitution. If the system is consistent, inconsistent, or dependent, say so in your answer. y=1/3x +10         x-3y=30
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06/09/13

Linear Equations
Solve the systems of linear equations by using the method of substitution. If the system is consistent, inconsistent, or dependent, say so in your answer. 5x+y=1      3x+y=3
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06/09/13

A cylinder of radius 6 cm and height 18 cm is full of water. What must be the height of a cone with radius 9cm to hold the same amount of water?
dont know how to do
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06/09/13

suppose the radius and height of a cylinder are both doubled. by how much is the surface area increased, by how much is the volume increased
i dont get how to find the answer 
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06/08/13

How many years will it take scientists to invent teleportation device?
How many years will it take scientists to invent teleportation device from now on? And how much money can the person earn by inventing this? Can someone do experiments for this in a laboratory by... more
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06/08/13

What is the minimum y value on the graph of y= f(x)
f(x)=x^2+8x - 4
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06/06/13

find the vertex of y= x2 +5x +4
find the vertex of y =x2 +5x +4  
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06/06/13

Needed help with this math question.
y= 4x^2 +6x - 2 Using the quadratic formula to identify any x-intercepts on the graph of this equation x=? or are there no x- intercepts?
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06/03/13

what is the inverse of f(x) = x^2 + 2 ?
Hi, I just need to find the inverse of f(x) = x^2 + 2. So, can you help me ?
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06/02/13

what is the equivalent expression of this equation using the same bases (22*59)^2
I need help finding the equivalent expression using the same bases. this is an algebra 1 question that i am having very very hard trouble with.  
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05/29/13

Needed help with this math question.
Use f(x) = x+3 and g(x) = f+8 to find each of the following (a) (f+g) (x)=? (b) (f-g) (x)=? (c) (fg) (x) =? (d) (f/g) (x)=?
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05/28/13

Maths question Please help
Please help me :( Solve the following pairs of simultaneous equations using the elimination method.(a) x+ 2y = 12-x + 3y = 8 (b) 14x – 5y = 12-2x + 5y= 24 (c) x+y=6 -3x + 6y =0(d) 7x – 4y = 23... more
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05/26/13

which equation describes the relationship between the number of miles Mr. Shindler has traveled and the number of gallons remaining in his gas tank?
Mr. Shindler begins traveling east on Interstate 90 from Spokane with a full tank of gasoline. His car has a 15-gallon gas tank and gets 30 miles per gallon during highway travel. Let m = the... more
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05/26/13

Impact on range and mean by increasing salaries
At a particular company, every employee receives a 4% cost-of-living increase to their salary. What impact does this cost-of-living increase have on the mean and on the range of employee salaries... more
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05/24/13

how do you reduce 32/83 to the lowest terms
I'm on I.X.L (a math practicing source  and One question said : write 32/83 in lowest terms.Help! I'm a fifth grader,not a senior in collage!
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05/24/13

What are the answers to -4+sin(x)=-8+sqrt2/2
I need to know how to find the two answers between 0 and 2 pi. I need the answers in degrees, not radians. there should be two answers
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05/23/13

how to put this in slope intercept and standard form
(2,-3 )( -2,5)
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05/20/13

Probability and Statistics
Five different coins are in a bag. Three are drawn. I've 2 of the different coins. What are the chances my coins match the 3 drawn? Explain.
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05/19/13

How many students only created a dessert?
Each student in a cooking class of 50 students is assigned to create a dessert, an appetizer, or both. The total number of students creating an appetizer is seven more than the number of students... more
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