A website password must include at least 5 letters and 5 numbers. How many ways can you arrange 5 letters from 26 for your password, if the letters must all be distinct

Find the length of the following tangent segments to the circles centered at o and o' whose radii are 5 and 3 respectively and the distance between o and o' is 12. what is the tangent segment of cd?

Evaluate the following expression 1/3^2

One positive number is 9 more than twice another. if their product is 95, find the numbers