Suppose a railroad rail is 5 kilometers and it expands on a hot day by 10 centimeters in length. approximately how many meters would the center of the rail rise above the ground?

What is the smallest integer n such that n\sqrt{2} is greater than 20

Which graph represents an even function?

Select the correct answer from each drop-down menu. the length of a rectangle is 5 inches more than its width. the area of the rectangle is 50 square inches. the quadratic equation that represents this situation is the length of the rectangle is inches.