Give an appropriate answer.Let
f(x) = -9 and
g(x) = 4. Find
[f(x) ? g(x)].
A. -4
B. 4
C. -5
D. -36
Answer: D
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Find the coordinates of the vertices and foci of the ellipse.y2 = 4(1 - x2)
A. V(-4, 0), V(4, 0), F(-3, 0), F(3, 0)
B. V(-2, 0), V(2, 0), F
, F
C. V(0, -2), V(0, 2), F
, F
D. V(0, -4), V(0, 4), F(0, -3), F(0, 3)
Solve the problem.Dave can hike on level ground 3 miles an hour faster than he can on uphill terrain. Yesterday, he hiked 29 miles, spending 2 hours on level ground and 5 hours on uphill terrain. Find his average speed on level ground.
A. 6.7 mph B. 6.3 mph C. 4.1 mph D. 3.3 mph
Solve the problem.A nuclear cooling tower cross section is a hyperbola having a diameter of 52 ft at the center. The distance between the two foci is 96 ft. What is the equation for the hyperbola?
A. 
- 
= 1
B. 
- 
= 5
C. 
- 
= 1
D. 
- = 1
Solve.-1 = -2x + 9
A. {-8} B. {8} C. {-4} D. {5}