Angle ABC and angle DEF are complementary angles. The measure of angle ABC is twice the measure of angle DEF. Write an equation to find x, the measure of angle DEF, and then solve for x.

Convert 92.90 into degrees, minutes, and seconds

A bird sanctuary used to receive 10,000 birds per year. The number of birds migrating to the sanctuary is decreasing at the rate of 5% each year. Identify the exponential decay function that models the situation.

Find the zeros of the function. f (x) = 9x^2-12x-5

A candy store sells yogurt-covered raisins for $3.50 per pound and chocolate-covered-pretzels for $3.00 per pound. How many pounds of each should you buy to make a 15 pound mixture that costs $3.20?

What is the answer to this 3/4 + 12=?

What does the ratio of water and flour 10:4.5 mean?

If the vertex of a parabola is (-6,7) what is the axis of symmetry?

A large data sample of heights of US women is normally distributed with a mean height of 64.7 inches and a standard deviation of 2.6 inches. What is the approximate probability that a randomly selected person in this sample is shorter than 62.

What is the value of 3/4 k to the 3rd power - 9 when K=3

What is a common factor for the expression 24x^2+16x+144