Rearrange the formula c^2=a^2+b^2 for b

Find the value of tan theta if sin theta = 12/13 and theta is in quadrant 2

Scott harris can invest $7,000 in a 1-year cd that earns interest at an annual rate of 4 percent compounded monthly. the amount per $1.00 is 1.040742. he can also invest $7,000 in a 1-year cd at annual rate of 4 percent compounded quarterly. the amount per $1.00 is 1.040604. what is the difference in the amount of interest earned for each investment? a) $0.96 b) $0.81 c) $0.87 d) $0.88

Julius sold five times as many computers as sam sold last year. in total, they sold 78 computers. how many computers did julius sell?