In right triangle abc, ∠c is a right angle and sin a = sin b. solve for m∠a.
a. 30 degrees
b. 45 degrees
c. 60 degrees
d. 75 degrees

For which rational expression is -2 an excluded value of x?

You invested $5000 between two accounts paying 4% and 9% annual interest, respectively. if the total interest earned for theyear was $350, how much was invested at each rate? $was invested at 4% andwas invested at 9%.

Solve the system of equations. y= 2x y= x^2 - 15