If a heart beats 15 times in 3 seconds, how many times does it beat in 1/2 minute?

Find the missing factor. 7s2 + 25s + 12 = (s + 3)( ).

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.

Why is x= 4 a solution to the proportion 14/x 56/1 6