# Mathematics

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Two motorcycles head toward each other from opposite ends of a freeway 1120 kilometers long. If the speed of the first motorcycle is 40 kilometers per hour and the speed of the second motorcycle is 30 kilometers per hour
[Mathematics]
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The price of a dvd decreased by 1/4. If the original price was $440. What is the price today?
[Technical Mathematics]
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John Miller bought a new computer for $3,500. Ron a friend of John's can only afford to pay 3/5 as much as John
[Technical Mathematics]
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A machinist drills four holes in a straight line. Each hole has a diameter of 1/10 inch and there is 1/4 inch between the holes
[Advanced Math]
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In families with four children, you’re interested in the probabilities for the different possible numbers of girls in a family.
[Advanced Math]
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Write an equation in both rectangular and polar form for the line with slope -1 through (3, -1 )
[Calculus]
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Write an equation in both rectangular and polar form for the horizontal line through (2, 5 )
[Calculus]
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Write an equation in both rectangular and polar form for the vertical line through (-3, 0 )
[Calculus]
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Find a vector that has the same direction as 6i - 3j and is (a) four times its length; (b) one third its length
[Calculus]
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Given a = 2i + 3j, b = 3i + 5j, and c = 8i + 11j express c in the form ra + sb where r and s are scalars
[Calculus]
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Given a = 5i + 9j and b =12i - 10j, determine whether or not a and b are perpendicular
[Calculus]
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Find (to the nearest degree) each angle of the triangle with vertices A(1, 2, 3 ), B(4, 1, 3 ), and C(1,2, 6 )
[Calculus]
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Find (to the nearest degree) each angle of the triangle with vertices A(1, 1, 1 ), B(0, 0, 3 ), and C(4, -1, -3 )
[Calculus]
(3)