A ramp is to be built using a 20 foot long board and an 18 foot long board. To make the ramp stable, the builders would like to add a third board to create a right triangle. How long should that board be, to the nearest hundredth of a foot? Justify.

Which of the following is most likely the next step in the series? a3z, b6y, c9x, d12w, е15v, f18u

Solve the equation using the zero-product property. -3n(7n - 5) = 0 a. 0, -5/7 b. -1/3, -5/7 c. -1/3, 5/7 d. 0, 5/7

Adecibel is a logarithmic unit that can be used to measure the intensity of a sound. the function y = 10logx gives the intensity of a sound in decibels, where x is the ratio of the intensity of the sound to a reference intensity. the reference intensity is generally set at the threshold of hearing. use the graphing utility to graph the decibel function.a whisper has a sound intensity of 30 decibels. use your graph to you complete the following statement. the sound intensity of a whisper is times the reference intensity.