What is the standard deviation of the data set given below?

4,7, 8, 9, 12

Which expression is equivalent to 4 (5x+3y)

5. A ball is kicked into the air and follows the path described by h (t) = - 4.9t^2+6t+0.6. where t is the time in seconds and h is the height in meters above the ground. Find the maximum height of the ball.

Solve 6e^x - 4e^-x = 5 for X

Solve for t 2.25t + 5 = 13.5t + 14

3 and 1 4th divided by 4 and 1 3rd

Determine whether the statement below is always, sometimes, or never true. Justify your reasoning. The Expressions x - 3 and y - 3 represent the same value.

You throw a snowball from a height of 12 feet with an upward velocity of 14 feet per second. The function h=-16t^2+14t+12 gives the height h of the snowball after t seconds.

Which symbol makes this sentence true? - √7 * blank * 3.5

Graph the number line 8.75

What is the mode of 4, 9, 9, 9, 4, 6, 6, 6, 9?