There are 10,000 dolphins swarming for food. For each single dolphin on the surface, 20 are below the water. How many dolphins are on the surface? How many are below water?

Find all values of x in the interval [0, 2Ï] that satisfy the equation. (enter your answers as a comma-separated list.) 6 + 3 cos (2x) = 9 cos (x)

What is the equation of these line x-3y = 18 in slope-intercept form

Given: - 3x + y = 1. Write the equation in general form Ax + By + C = 0.

4. Calculate using the order of operations. a) (+30) / (-10) + (-20) / (-1)

About 2% of the people in the world have red hair. There are about 7,000,000,000 people in the world. about how many people have red hair?

If two angles in a triangle add up to138, then what is the size of the third angle

Kay has an 80% probability of making a free throw in basketball and each free-throw is independent. Kay gets to take two free throws and must make both to win the game. What is the probability that Kay's team will win the game?

Round the underlined digit 75,254

The GCF of 24 and 32 is

Which is a higher score 3 out of 10 or 5 out of 20?