15 handshakes each person shook hands exactly once. how many people are at the party?

Using the slope and the y - intercept, graph the line represented by the following equation. Then select the correct graph. 2 y + 4 = 0

9 * 10^7 is how many times as large as 3 * 10^-2

A ball is thrown upward from the top of a building. The function below shows the height of the ball in relation to sea level, f (t), in feet, at different times, t, in seconds: f (t) = - 16t2 + 32t + 90 The average rate of change of f (t) from t =

What is the equation of a parabola with a focus (-2,4) and directrix y = 0?

Solve. 2x - 3 > 23 Drag answer here 2x - 3 > 3x - 1 Drag answer here 5x - 4 < 21 Drag answer here x>-2 x13. x5

What is 4-1+10*9:11-8+10?

X^7 / (x^3) ^2 = 1/x x x^2

What do i do when my headphones don't work because we are do a assignment

Write a real world problem for the equation x-75=200

Find the probability of drawing a heart or a black card from a standard deck of cards