The equation tan(55 degree) equals startfraction 15 over b endfraction can be used to find the length of line segment a c. triangle a b c is shown. angle b c a is a right angle and angle b a c is 55 degrees. the length of a c is b and the length of hypotenuse b c is 15 centimeters. what is the length of line segment a c? round to the nearest tenth. 3.0 in. 9.8 in. 10.5 in. 12.8 in.

Which term best describes the association between variables a and b? no association a negative linear association a positive linear association a nonlinear association a scatterplot with an x axis labeled, variable a from zero to ten in increments of two and the y axis labeled, variable b from zero to one hundred forty in increments of twenty with fifteen points in a positive trend.

Simply 8x squared + 5(7x squared- x) - 2x =

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.