Find the center, foci, and vertices of the ellipse.36(x + 3)2 + 25(y + 1)2 = 900
A. center at (-1, -3)
foci at (-1, -3 - 
), (-1, -3 + 
)
vertices at (-1, 5), (-1, -7)
B. center at (3, -1)
foci at (3, -1 - 
), (3, -1 + 
)
vertices at (3, 5), (3, -7)
C. center at (-3, -1)
foci at (-3, -1 - 
), (-3, -1 + 
)
vertices at (-3, 5), (-3, -7)
D. center at (-2, -1)
foci at (-2, -1 - 
), (-2, -1 + 
)
vertices at (-2, 5), (-2, -7)
Answer: C
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Solve the problem.A weight attached to a spring is pulled down 4 inches below the equilibrium position. Assuming that the frequency of the system is 
cycles per second, determine a trigonometric model that gives the position of the weight at time t seconds.
A. s(t) = 4? cos 5t
B. s(t) = 4 cos 10t
C. s(t) = -4 cos 
t
D. s(t) = -4 cos 10t
Solve the problem.Candy and Delvis are riding bicycles in the same direction. Candy is traveling at a speed of 5 miles per hour, and Delvis is traveling at a speed of 10 miles per hour. In 3 hours what is the distance between them (assuming that they began at the same point and time)?
A. 15 mi B. 12 mi C. 16 mi D. 24 mi
Write an expression that illustrates the quantity described.The cost of z pounds of nuts that sell for $1.52 per pound
A. $z B. $1.53z C. $1.52 D. $1.52z
Write out the sum. Do not evaluate.
A. 6 + 7 + 8 + 9 B. 10 + 11 + 12 + 13 C. 7 + 8 + 9 + 10 + ... D. 7 + 8 + 9 + 10