Verify the Identity

cot (x - pi/2) = - tan x

A trapezoid with bases that measure 8 inches and 11 inches has a height of 3 inches. What is the area of the trapezoid?

A parachutist's speed during a free fall reaches 13 miles per hour. What is this speed in feet peer second? At what speed, how many feet will the parachutist fall during 10 seconds of free fall?

What is the least common multiple of 10, 98, and 7

Solve each system by substitution: 3x+y=2 4x+y=20 How do I solve this and set this up

Mark walks to school in 3 minutes. It takes Tom 4 times as long to walk to school as it does Mark. How long does it take Tom to walk to school? minutes

Ken likes to build domino trains. He uses boxes of double-six dominoes which contain 28 dominoes. If he built a train with over 500 dominoes, what would be the fewest number of boxes he needed? What operation is needed? What numbers are to be used?

A baker lives 11 blocks away from the store. the baker walks to the store and back, taking a two-block detour each way. how many blocks did the baker walk in total?

How can transformations be used to solve real world problems?

Chris needs to find the product of two numbers. One of the numbers is 6. The answer also needs to be 6. How will he solve this problem? Explain

I have 8 M&Ms. There are 2 green ones in the pack. What is the proportion of green M&Ms in the pack?