Find the volume of a pyramid with the following measurements. also, explain how you got it. area of base is 270 ft^2 and height is 8 yds.

On a string instrument, the length of a string varies inversely as the frequency of its vibrations. an 11-inch string has a frequency of 400 cylces per second. find the frequency of a 10-icnch string.

Abird on top of a 200 ft bridge tower sees a man standing on the lower part of the bridge (which is 50 ft above the ground). the angle of depression from the bird is 26 ̊. how far is the man from the base of the bridge tower? with explanation and pictures .

What is the 17th term in the arithmetic sequence in which a6 is 101 and a9 is 83