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Recent questions in Math
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A 13 foot ladder is leaning against a house. The distance from the bottom of the ladder is 7 less than the distance from the top of the ladder to the ground.
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12 years
ago
in
Math
by
anonymous
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0
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Consider a rectangle of perimeter 12 inches. Form a cylinder by revolving this rectangle about one of its edges. What dimensions of the rectangle will result in a cylinder of maximum volume ?
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12 years
ago
in
Math
by
anonymous
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Consider all triangles formed by lines passing through the point (8/9, 3) and both the x- and y-axes. Find the dimensions of the triangle with the shortest hypotenuse.
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12 years
ago
in
Math
by
anonymous
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If the distance covered by a jogger is 2,541meters through the park and the time it took to cover that distance was 43.6 minutes, what was the speed of the jogger?
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12 years
ago
in
Math
by
anonymous
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If a cross country runner covers a distance of 347 meters in 134 seconds what is her speed?
asked
12 years
ago
in
Math
by
anonymous
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votes
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What is the speed of a baseball that travels 49 meters in 2.4 seconds?
asked
12 years
ago
in
Math
by
anonymous
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votes
0
answers
Which object has a greater velocity, a ball rolling down a 3.4 meter hill in six seconds or a fish swimming upstream and covering 5.4 meters in 0.4 minutes?
asked
12 years
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Math
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anonymous
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You are standing at the edge of a slow-moving river which is one mile wide and wish to return to your campground on the opposite side of the river. You can swim at 2 mph and walk at 3 mph. You must first swim across the river to any point on the opposite bank. From there walk to the campground, which is one mile from the point directly across the river from where you start your swim. What route will take the least amount of time ?
asked
12 years
ago
in
Math
by
anonymous
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votes
0
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A container in the shape of a right circular cylinder with no top has surface area 3 ft.2 What height h and base radius r will maximize the volume of the cylinder ?
asked
12 years
ago
in
Math
by
anonymous
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votes
0
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Find the dimensions of the rectangle of largest area which can be inscribed in the closed region bounded by the x-axis, y-axis, and graph of y=8-x3 . (See diagram.)
asked
12 years
ago
in
Math
by
anonymous
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Calculate the velocity of a mountain climber if that climber is moving northeast at a pace of 1.6 km in 1.4 hours? Give your answer in the SI unit for velocity.
asked
12 years
ago
in
Math
by
anonymous
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Construct a window in the shape of a semi-circle over a rectangle. If the distance around the outside of the window is 12 feet, what dimensions will result in the rectangle having largest possible area ?
asked
12 years
ago
in
Math
by
anonymous
0
votes
1
answer
There are 50 apple trees in an orchard. Each tree produces 800 apples. For each additional tree planted in the orchard, the output per tree drops by 10 apples. How many trees should be added to the existing orchard in order to maximize the total output of trees ?
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12 years
ago
in
Math
by
anonymous
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votes
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Calculate the speed of a dog running through a field if he is covering 23.7 meters in 54 seconds.
asked
12 years
ago
in
Math
by
anonymous
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votes
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A sheet of cardboard 3 ft. by 4 ft. will be made into a box by cutting equal-sized squares from each corner and folding up the four edges. What will be the dimensions of the box with largest volume ?
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12 years
ago
in
Math
by
anonymous
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An open rectangular box with square base is to be made from 48 ft.2 of material. What dimensions will result in a box with the largest possible volume ?
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12 years
ago
in
Math
by
anonymous
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A cylindrical can is to hold 20 m.3 The material for the top and bottom costs $10/m.2 and material for the side costs $8/m.2 Find the radius r and height h of the most economical can.
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12 years
ago
in
Math
by
anonymous
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Calculate the velocity of a car that travels 556 kilometers northeast in 3.4 hours. Leave your answer in kilometers per hour.
asked
12 years
ago
in
Math
by
anonymous
0
votes
1
answer
Gold has a density of 19.3 g/cm3. A cube of gold measures 4.23cm on each edge. What is the volume of the cube?
asked
12 years
ago
in
Math
by
anonymous
0
votes
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Find two nonnegative numbers whose sum is 9 and so that the product of one number and the square of the other number is a maximum.
asked
12 years
ago
in
Math
by
anonymous
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