Solve the problem.A projectile is fired from a height of 8.8 feet with an initial velocity of 178 ft/sec at an angle of 56° with the horizontal. The parametric equations for the path of the projectile are x = (178 cos 56°)t, and y = 8.8 + (178 sin 56°)t - 16t2,where x and y are in feet and t is in seconds. How long does it take the projectile to hit the ground? Round your answer to the nearest tenth of a second.
A. 18.6 sec
B. 9.2 sec
C. 9.3 sec
D. 11.9 sec
Answer: C
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Solve the problem.Don James wants to invest $65,000 to earn $4650 per year. He can invest in 
bonds paying 
per year or in a Certificate of Deposit (CD) paying 
per year. How much money should be invested in each to realize exactly $4650 in interest per year?
A. $28,000 in B-rated bonds and $37,000 in a CD B. $37,000 in B-rated bonds and $28,000 in a CD C. $36,000 in B-rated bonds and $29,000 in a CD D. $29,000 in B-rated bonds and $36,000 in a CD
The problem tells by what factor and direction the graph of the given function is to be stretched or compressed. Give an equation for the stretched or compressed graph.y = x2 + 3
stretched horizontally by a factor of 3
A. y = 
+ 3
B. y = 9x2 + 3
C. y = 
+ 3
D. y = 3x2 + 9
Find the eccentricity of the hyperbola.x2 - y2 = 7
A. 
B. 
C. 0
D. 2
Find the center, foci, and vertices of the ellipse.25x2 + 49y2 = 1225
A. center at (0, 0)
foci at (0, -5) and (0, 5)
vertices at (0, -25), (0, 25)
B. center at (0, 0)
foci at (-7, 0) and (7, 0)
vertices at (-49, 0), (49, 0)
C. center at (0, 0)
foci at (- 2
, 0) and (2
, 0)
vertices at (-7, 0), (7, 0)
D. center at (0, 0)
foci at (0, - 2
) and (0, 2
)
vertices at (0, -7), (0, 7)