06/03/14

#### Can a figure have two lines of symmetry and no rotational symmetry?

Can a figure have two lines of symmetry and no rotational symmetry?

#### Optimization Problems

A cylindrical can is to have a volume of 1L.
a) Find the height and radius of the can that will minimize the surface area
b) What is the ratio of the height to the diameter? Do pop cans have a...
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03/07/14

#### How can I find the speed of a car from a yaw mark?

If someone is driving on a snow covered road with a drag factor of .2 and breaks suddenly, leaving a yaw mark with a 52 ft chord and a middle ordinate of 6 ft, what is the minimum speed they...
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03/02/14

#### Let f(x) = integral from (-2) to (x^2-3x) of e^(t^2) dt. At what value of x is f(x) a minimum?

At what value of x is f(x) a minimum?
I know f'(x) = e^((x^2-3x)^2) , but I don't know how to continue.
Thanks!

01/18/14

#### help simply 135b^2

would you help me simplify
___________ ______
√135b^2c^3d x √5b^2d
thanks

01/17/14

#### Find the volume?

The region in the first quadrant between the x-axis and the graph of y=6x-x^2 is rotated around the y-axis. The volume of the resulting solid of revolution is given by
a) ∫ pi(6x-x^2)^2 dx from...
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