Solve the problem.A ball is thrown downward from a window in a tall building. Its position at time t in seconds is 
where s is in feet below the window. How long (to the nearest tenth) will it take the ball to fall 111 feet?
A. 1.8 sec
B. 2.6 sec
C. 3.2 sec
D. 1.6 sec
Answer: A
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Solve the problem. Round your answer, if appropriate.One airplane is approaching an airport from the north at 157 km/hr. A second airplane approaches from the east at 299 km/hr. Find the rate at which the distance between the planes changes when the southbound plane is 27 km away from the airport and the westbound plane is 23 km from the airport.
A. -313 km/hr B. -626 km/hr C. -469 km/hr D. -156 km/hr
E = 12 V, R1 = 5.6 Kê, R2 = 4.7 Kê, R3 = 3.3 Kê, R4 = 5.1 Kê, and RL = 1.2 Kê. Find the value of the voltage across RL.
a. 3.18 V
b. 2.29 V
c. 1.79 V
d. 1.02 V
e. 0.37 V
Two sides and an angle are given. First, determine whether the given information results in no triangle, one triangle, or two triangles. Solve each resulting triangle.C = 35°, a = 18.7, c = 16.1
A. one triangle; A = 42°, B = 103°, b = 27.4 B. no triangle C. two triangles; A1 = 42°, B1 = 103°, b1 = 27.4 or A2 = 138°, B2 = 7°, b2 = 3.4 D. two triangles; A1 = 103°, B1 = 42°, b1 = 27.4 or A2 = 7°, B2 = 138°, b2 = 3.4
Write the integer that corresponds to the situation.$232 profit
A. 232 B. -232