Suppose h(t) = -5t² + 10t + 15 is the height of a diver above the water (in meters), t seconds after the diver leaves the springboard. How high above the water is the springboard?

A. 5 meters
B. 10 meters
C. 15 meters
D. 20 meters​

Manuela claims that and are congruent. which statement best describes her claim? she is incorrect because the segments do not have the same orientation. she is incorrect because the segments do not have the same length. she is correct because the segments have the same length. she is correct because the segments have the same orientation.

Two sides of a right triangle measure 2 units and 4 units. what is the area of the square that shares a side with the third side of the triangle?

Ahousekeeper mixed 5 gallons of blue paint with every 9 gallon of yellow paint in order to make a green paint which ratio of gallon of blue paint to gallon of yellow paint will make the same shade of green paint