Given right triangle ABC with altitude BD drawn to hypotenuse AC. If AB = 8 and AD 4, what is the length of AC ? (Note: the figure is not drawn to scale.)

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.

Samantha is growing a garden in her back yard. she spend $90 setting up the garden bed and buying the proper garden supplies. in addition, each seed she plants cost $0.25. a. write the function f(x) that represents samantha's total cost on her garden. b. explain what x represents. c. explain what f(x) represents. d. if samantha plants 55 seeds, how much did she spend in total?

The zoo collects $9.60 for every 24 tickets sold. how much will be collected for 400 tickets?