Given the following information tanA = -8/15 and A is in quadrant II
cosB = -5/13 and B is in quadrant III
Find the following as fractions in simplest form. Show work in an organized manner.
Find sinA
cosA
sinB
tanB
sin(a+b)

Compare the subtraction problems 6/8 - 5/8 = 1/8 and 6/9 - 7/9 = 1/9 why is the answer to the first problem positive and the answer to the second problem negative

Solve with work both bert and ernie received an increase in their weekly salaries. bert's salary increased from $520 to $520. ernie's salary went from $580 to $645. find the percent of increase for each salary. what was the larger of the two percents ?

Question b of 10which of the following describe an angle with a vertex at a? check all that applyo a. labcов. савd dooo c_baco d. zacb