Which of the following is a solution to 2cos x + 1 = 0? a. 60° b. 120° c. 210° d. 300°

How much dextrose 70% must be mixed with dextrose 5% to prepare 1,000 ml of dextrose 20%?

If f(x) and g(x) are inverse functions of each other, which of the following shows the graph of f(g(x)

Which equation shows the variable terms isolated on one side and the constant terms isolated on the other side for the equation -1/2x+3=4-1/4x? a. -1/4x=1 b. -3/4x=1 c. 7=1/4x d. 7=3/4x