Find the center, foci, and vertices of the ellipse.49x2 + y2 - 588x + 1715 = 0
A. 
+ (y - 7)2 = 1
center: (7, 0); foci: (7, 
), (7, -4
); vertices:(7, 6),
(7, -6)
B. 
+ (y - 6)2 = 1
center: (6, 0); foci: (6, 4
), (6, -4
); vertices:(6, 7), (6, -7)
C. (x - 7)2 + 
= 1
center: (7, 0); foci: (7, 
), (7, -
); vertices:(7, 6), (7, -6)
D. (x - 6)2 + 
= 1
center: (6, 0); foci: (6, 4
), (6, -4
); vertices:(6, 7), (6, -7)
Answer: D
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Make a stem and leaf plot of the data.The following data show the number of laps runby each participant in a marathon.46 65 55 43 51 4857 30 43 49 32 56
A. 
B. 
Simplify.(4a)3
A. 12a B. 64a C. 12a3 D. 64a3
Solve the problem.Assuming equal costs, when warehouse workers use hand trucks to load a trailer, it costs the management 
for labor for each trailer. After management purchases a forklift for 
, it costs only 
for labor to load each trailer. Write the equation that models the cost, C(n), of loading n trailers with a hand truck, and the cost, C(n), of loading n trailers with the forklift. Then, solve this system using an algebraic approach.
A. Cost using hand trucks: C(n) = 50n Cost using forklift: C(n) = 2100 + 25n n = 82 B. Cost using hand trucks: C(n) = 25n Cost using forklift: C(n) = 2100 + 50n n = 82 C. Cost using hand trucks: C(n) = 25n Cost using forklift: C(n) = 2100 + 50n n = 84 D. Cost using hand trucks: C(n) = 50n Cost using forklift: C(n) = 2100 + 25n n = 84
Establish the identity.tan
= 
What will be an ideal response?