If tan(x) = −9 and x is in quadrant IV, find the exact values of the expressions without solving for x. (a) sin(2x) , (b) cos(2x) , (c) tan(2x)

Which matrix multiplication is possible?

Find the multiplicative inverse of 8-12i

Ricky takes out a $31,800 student loan to pay his expenses while he is in college. after graduation, he will begin making payments of $190.66 per month for the next 30 years to pay off the loan. how much more will ricky end up paying for the loan than the original value of $31,800? ricky will end up paying $ more than he borrowed to pay off the loan.