Use the power rule and the power of a product or quotient rule to simplify the expression.(-6x3y6z)3
A. -216x3y6z
B. -216x9y18z3
C. -18x10y19z4
D. 216x6y9z
Answer: B
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Find the derivative.s = 2t2 - 2t - 7
A. 2t2 - 2 B. 2t - 2 C. 4t - 2 D. 4t2 - 2
Solve the problem.An office contains 1000 ft3 of air initially free of carbon monoxide. Starting at time = 0, cigarette smoke containing 4% carbon monoxide is blown into the room at the rate of 0.5 ft3/min. A ceiling fan keeps the air in the room well circulated and the air leaves the room at the same rate of 0.5ft3/min. Find the time when the concentration of carbon monoxide reaches 0.01%.
A. 6.01 min B. 5.01 min C. 7.01 min D. 8.01 min
In a series RC circuit, the voltage across the capacitor ______ the circuit current.
a. lags b. leads c. in-phase
Solve.A ball is thrown upward with an initial velocity of 14 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 it takes the ball to hit the ground. Round your answer to the nearest tenth of a second.
A. 4.7 sec B. 5.1 sec C. 4.9 sec D. 6.9 sec