Multiple Choice
At time t = 0 seconds, a ball is thrown vertically upward from the top of a building that is 76 metres high. The height of the ball above ground t seconds later is given by h = 76 + 39.2t - 9.8 
m (until the ball hits the ground) . At what speed does it hit the ground (to the nearest tenth of a metre per second) ?
A) 200.0 m/s
B) 230.4 m/s
C) 215.6 m/s
D) 245.9 m/s
E) 237.8 m/s
Correct Answer:
Verified
Correct Answer:
Verified
Q80: Differentiate the following function: f(x) = <img
Q81: The daily cost of production of x
Q82: Find the rate of change of the
Q83: At how many points does the curve
Q84: Given the curve <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB9661/.jpg" alt="Given the
Q86: Find the equation of the tangent line
Q87: Evaluate <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB9661/.jpg" alt="Evaluate dx
Q88: Find the value of <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB9661/.jpg" alt="Find
Q89: Find the derivative of <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB9661/.jpg" alt="Find
Q90: Find an equation of the line normal