01/17/16

Word problem
A web music store offers two versions of a popular song. the size of the standard version is 2.1 MB. The size of the high quality version is 4.5MB. Yesterday, the high quality version was... more
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01/17/16

A sample of a gas occupies 2067 mL at 311 degrees celcius and 740 torr. At what temperature would it occupy 1876.1 mL if the pressure is kept constant?
Can you show the answer and how you got the answer thanks
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01/16/16

given a one cubic yard of concrete in a block, how much hood in Sq ft would you need to buy to completely build a wood box around the 1 cubic yard of concrete?
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01/16/16

A ball is dropped from a bridge which is 160 ft above a river. How long will it take the ball to hit the water? Use the equation s(t)= -16t^2+vot+so
How would you do this problem?Thanks. The o stands for sub o or knot.
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01/14/16

A square that has a perimeter of (8x + 36) what is measurement of each side?
A square has a perimeter of (8x + 36) what is measurement of each side?
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01/14/16

Parallelograms
In parallelogram ABCD, AC and BD intersect at E. If AE is 5x-6 and EC is 2x+3, find the of x. What is the length of AC? If BD is 6x, what kind of quadrilateral could his be? Why?
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01/12/16

a penny and one die are tossed at the same time,list all the possible outcomes of the two events
outcomes-math practice
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01/11/16

What is the vertex of the quadratic function y = -7x^2 + 28x - 5?
What is the vertex of the quadratic function y = -7x^2 + 28x - 5?    Thank you! 
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01/08/16

What is correct?
An opinion pollster says "All I need to do to ensure the accuracy of the results of my polls is to make sure I have a large sample."A casino operator says "All I need to do to ensure that the house... more
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01/08/16

Parametric Equations,Equations of planes
(i) Find the parametric equation of the line l through the point (2, 2, −2) andparallel to the line x = 2 − 7t, y = 3 + 4t, z = −t, t ∈ R.   (ii)Calculate the equation of the plane which contains... more
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01/08/16

equations and vectors
Given the following parametric equation of the line l:x = 2 − 7t, y = 3 + 4t, z = −t, t ∈ R,give two points on l and a vector parallel to l.
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01/06/16

pleas i need your help about this question . what the following function is graph symmeteries plot it graph .y=-x^3
pleas i need your help about this question . what the following function is graph symmeteries plot it graph .      y=-x^3
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11/08/15

A linear algebra question, please help!
Consider the following matrices. A= -3  1    and B=0   4        0  2              -1  6 (a) Find -2A+B (b) Find 4A-3B (c) Find the transpose of a (d) Find the transpose of B-A
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10/27/15

How much of each type of nut is in the package?
A company mixes peanuts, cashews, and almonds to obtain 17 oz package worth 4.63 dollars. If peanuts, cashews, and almonds cost 17, 42, and 50 cents per oz respectively, and the amount of cashews... more
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10/27/15

can someone please help?
A shipping company is designing boxes to meet specific requirement. Each box must be a completely closed rectangular prism with no overlapping material. The boxes must hold 24 cans in two layers of... more
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