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Why are the shapes and widths of the time zones different?
The widths all average out the same ... 15 degrees of longitude per time zone. The shapes are drawn the way they are in order to avoid splitting cities and states into two different time zones.
What is the length of the sides of a rectangle that has a perimeter of .875?
You can't tell the dimensions from the perimeter. There are an infinite number of different rectangles, all with different lengths and widths, that all have the same perimeter.
Why can different three dimensional figures have the same volume?
If they have varying heights and widths and lengths. For example: You have a cube and a rectangular prism. The cube has sides that are all 6 cm. long. That cube has a volume of 216 cm Squared. The rectangle has the dimensions 3 by 12 by 6. This rectangular prism has a volume of 216 cm squared, just like the cube, and even though they weren't the same figure, they has the same volume.
What is the width of a rectangle that has the length of 6 and a perimeter of 20?
12+2x=20its 12 because a rectangle has parlelle sides that are equal in length, so there are two sides that equal 6.the widths are 2x because they are the same length, we know these have to add up to 20.2x=8x=4width=46+6+4+4=20
Can calculus and trigonometry be taken in the same semester in collge?
It depends on the college and since you have not bothered to specify which one, I cannot provide a more useful answer.
