Use a half-angle formula to find the exact value of sin(-31pi/12)

Rose bought a new hat when she was on vacation. the following formula describes the percent sales tax rose paid b=t-c/c

The perimeter of a rectangular lot of land is 436 ft. this includes an easement of x feet of uniform width inside the lot on which no building can be done. if the buildable area is 122 ft by 60 ft, determine the width of the easement. select one: a. 9 feet b. 18 feet c. 4.5 feet d. 7 feet

Xy x xy if a and b are positive integers such that a*b=9 and b*a=72 what is the value of a/b