What is the value of sin(80degrees)cos(20degrees) - cos(80degrees)sin(20degrees)? a. -1/2
b. -root3/2
c. 1/2
d. root3/2

20 solve 2(4 x + 3) < 5 x + 21. a) { x | x < 9} b) { x | x > -5} c) { x | x > -9} d) { x | x < 5}

Cal's go cart has a gas tank with the dimensions shown below. he uses a gas can that holds 11 gallon of gas, to fill the go cart tank. 11 gallon = 231 inches^3 how many full gas cans will it take to fill the go cart's gas tank?

Find the maximum value of p= 4x + 5y subject to the following constraints :