Solve the problem.The position of an object moving in a straight line is given by s = 2t2 - 3t, where s is in meters and t is the time in seconds the object has been in motion. How long (to the nearest tenth) will it take the object to move 20 meters?
A. 4.0 sec
B. 74.0 sec
C. 21.0 sec
D. 3.8 sec
Answer: A
Mathematics
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Solve the problem.A rectangular sea aquarium observation window is 16 ft wide and 6 ft high. What is the force on this window if the upper edge is 3 ft below the surface of the water. The density of seawater is 64 lb/ft3.
A. 73,700 lb B. 36,900 lb C. 23,000 lb D. 41,500 lb
Mathematics
Evaluate using a number line.-17 + (-7)
A. -10 B. 10 C. -24 D. 24
Mathematics
Solve the equation.- 
a = 0
A. {-19} B. {1} C. {0} D. {19}
Mathematics
Suppose the point (2, 4) is on the graph of y = f(x). Find a point on the graph of the given function.y = f(x) + 4
A. (2, -4) B. (2, 8) C. (6, 4) D. (-2, 4)
Mathematics