Solve.A ping-pong ball is dropped from a height of 9 ft and always rebounds 
of the distance fallen. Find the total sum of the rebound heights of the ball.
A. 6 ft
B. 4.5 ft
C. 3 ft
D. 13.5 ft
Answer: B
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Provide an appropriate response.The distance from the Sun to planet Earth is approximately 9.3 × 107 miles. This distance represents one astronomical unit. The distance from planet Earth to an approaching comet is approximately 0.8 astronomical units. What is this distance?
A. 7.4 × 106 mi B. 1.2 × 106 mi C. 7.4 × 107 mi D. 7.4 × 108 mi
Evaluate the expression.2x - 6(x - 3) when x = -
A. -10 B. 25 C. 11 D. 4
In the circuit below, Vin = 35 V, R = 20 Kê, and fCO = 23 Khz. What is the circuit impedance and Imax for the circuit?
a. Z = 28.3 Kê, I = 1.24 mA
b. Z = 40.0 Kê, I = 1.75 mA
c. Z = 39.2 Kê, I = 3.50 mA
d. Z = 28.3 Kê, I = 1.75 mA
e. Z = 14.2 Kê, I = 1.24 mA
Solve the equation.Solve cos ? = 1 for ?, where 0° ? ? ? 90°.
A. 0° B. 60° C. 30° D. 90°