Solve the problem.The amount of simple interest I generated by principal P, annual interest rate r, and time t in years is given by 
Find the interest if t = 4 years, 
, and 
.
A. $33.60
B. $2.82
C. $0.40
D. $282.24
Answer: A
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Solve using the addition and multiplication principles together.
p - 
p = 3
A. 21 B. -24 C. -21 D. 24
Find the magnitude or direction angle of the given vector as indicated.u = 8[(cos 30°)i + (sin 30°)j]; Find the direction angle ?.
A. 45° B. 30° C. 120° D. 60°
Estimate the value of the quantity.The table shows the velocity of a remote controlled race car moving along a dirt path for 8 seconds. Estimate the distance traveled by the car using 8 subintervals of length 1 with left-end point values.
A. 154 in. B. 139 in. C. 298 in. D. 149 in.
Solve the problem.The ceiling height of a room is 8 feet. The width of the floor is 7 feet and the length is 6 feet. How much airspace is in the room?
A. 48 ft3 B. 42 ft3 C. 56 ft3 D. 336 ft3