Ricardo throws a stone off a bridge into a river below.
The stone's height (in meters above the water), 3 seconds after Ricardo threw it, is modeled by

w(2) = -5(2 – 8)(x + 4)

How many seconds after being thrown will the stone reach its maximum height?

2people are trying different phones to see which one has the better talk time. chatlong has an average of 18 hours with a standard deviation of 2 hours and talk-a-lot has an average of 20 hours with a standard deviation of 3. the two people who tested their phones both got 20 hours of use on their phones. for the z-scores i got 1 for the chatlong company and 0 for talk-a-lot. what is the percentile for each z-score?

Solve for n? [tex]z = \frac{3}{4} mn[/tex]

Two line segments are shown in the figure below. suppose that the length of the line along the x-axis is 6, and the length of the hypotenuse of the triangle is 10. what is the equation of the hypotenuse line (shown in red, below)?