Answer:
Option C is the correct answer.
Step-by-step explanation:
The height, h(t), of the ball can be modeled as a function of time, t, by the equation h(t) = -16t² + 40t + 20
When the ball hits the ground, we have h(t) = 0
h(t) = -16t² + 40t + 20 = 0
Negative time is not possible, so time = 2.93 seconds.
Option C is the correct answer.
Answer:
Step-by-step explanation:
Fourth row is least accurate.
Answer:
141 in³
Step-by-step explanation:
This problem bothers on the mensuration of solid shapes a cylinder, since the shapes of candles are cylindrical.
Given data
Radius r= 3in
Height h= 5in
Volume of cylinder V= πr²h
Substituting our given data we have
V= 3.14*3²*5
V= 3.14*9*5
V= 141.3in³
V= 141in³
The 2 smallest lengths in a triangle have to add up to be greater that the longest side of the triangle. In this case, the longest side is 20. The 2 smallest sides are 5 and 10. 5+10=15, but 15<20. This is why these 3 lengths can’t create a triangle.