Gray is building braces for a shelf. He will attach each brace to the front edge of the 6-inch shelf and 3 inches down the wall. If he uses 3 braces for the shelf, how much bracing, in inches, will he need? Round your answer to the nearest tenth of an inch. 6 in. wall 3 in. O 67.5 inches © 20.1 inches O 13.4 inches O 6.7 inches​

Given the following sampling distribution of one mean with a sample size 49, from a normally distributed population,find the population standard deviation, o.79828588912497

Television sizes are based on the length of the diagonal of the television's rectangular screen. so, for example, a 70-inch television is a television having a diagonal screen length of 70 inches. if a 70 inch television's diagonal forms a 29°angle with the base of the screen, what is the vertical height (1) of the screen to the nearest inch? 70 inhin

Which of the expressions (on the photo document i inserted) together represent all solutions to the following equation? 8cos(12x)+4=-4 *the answer should be in degrees.* > i would like for someone to explain the process to find the solutions for this.