What is the length of stack f n with bar on top when dm = 8 in., dn = 17 in., and mf = 10 in.? round your answer to the nearest tenth of an inch.

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.

Find the value of p for which the polynomial 3x^3 -x^2 + px +1 is exactly divisible by x-1, hence factorise the polynomial

Draw a scaled copy of the circle using a scale factor of 2