Solve the problem. Round to the nearest tenth, if necessary.If an object is propelled upward from ground level with an initial velocity of 72.1 feet per second, its height h in feet t seconds later is given by the equation 
After how many seconds does the object hit the ground?
A. 9.0 sec
B. 4.5 sec
C. 0.2 sec
D. 2.3 sec
Answer: B
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If A = 7 and h = 2, solve for b.
The area of a triangle is 
A) b = 7
B) b = 8
C) b = 14
D) b = 10
E) b = 3.5
Solve the problem.A city is growing at the rate of 0.6% annually. If there were 4,497,000 residents in the city in 1995, find how many (to the nearest ten-thousand) are living in that city in 2000. Use 
.
A. 360,000 B. 12,140,000 C. 4,630,000 D. 4,660,000
Graph the linear function by plotting the x- and y-intercepts.- 
x + y - 3 = 0
A. intercepts: (0, -6), (6, 0)
B. intercepts: (0, 3), (-6, 0)
C. intercepts: (0, 3), (6, 0)
D. intercepts: (0, 3), (-3, 0)
Identify the vertex, axis of symmetry, and whether the parabola opens upward or downward.
A. (-1, -2); x = 0; Upward B. (-2, -1); x = -2; Downward C. (-1, -2); x = 0; Downward D. (-2, -1); x = -2; Upward