4.) given the right triangle below. which of the following statements is true?

a) sin t = sin c
b) cos c = sin c
c) sin a = cos t
d) cos c = sin t

Aretha wanted to gather data about the cost of local bowling leagues in her area. she plotted the data and determined that the average bowling league costs consist of a one-time registration fee and a monthly fee modeled by the equation y = 15x + 20. identify and interpret the y-intercept in this model. the y-intercept is 20. this is the cost per month. the y-intercept is 20. this is the cost of registration. the y-intercept is 15. this is the cost of registration. the y-intercept is 15. this is the cost per month.

Is there an x intercept in the equation 60*1.15^x

What is the output, or dependent variable of quantity? 1: x 2: f(x) 3: y