Solve the following quadratic application using the quadratic formula.A ball is thrown downward with an initial velocity of 35 meters per second from a cliff that is
high. The height of the ball is given by the quadratic equation
where h is in meters and t is the time in seconds since the ball was thrown. Find the time that the ball will be
from the ground. Round to the nearest tenth.
A. It would take approximately 2.4 seconds for the ball to be 20 meters from the ground.
B. It would take approximately 1.5 seconds for the ball to be 20 meters from the ground.
C. It would take approximately 1.4 seconds for the ball to be 20 meters from the ground.
D. It would take approximately 1.3 seconds for the ball to be 20 meters from the ground.
Answer: C
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A. 26 B. 25.5 C. 25 D. 26.5
Perform the indicated arithmetic.-5 ÷ 2
A. -1
B. -1
C. 1
D. -2
Factor completely. If unfactorable, indicate that the polynomial is prime.s14 - t10
A. (s12 - t8)2 B. (s12 + t8)(s12 - t8) C. (s7 - t5)2 D. (s7 + t5)(s7 - t5)
Approximate the circumference of the circle using 3.14 as an approximation for ?.
A. 12.874 mi B. 52.783 mi C. 6.437 mi D. 25.748 mi