Graph.5x2 + 25y2 = 225 
A. 
B. 
C. 
D. 
Answer: A
Mathematics
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Solve the problem.A boat is towed toward a dock by a cable attached to a winch that stands 15 ft above the water level (see figure). Let ? be the angle of elevation of the winch and let z be the length of the cable as the boat is towed toward the dock. Compute 
when 
A. 
= -0.00030
B. 
= -0.00418
C. 
= -0.26287
D. 
= -0.00446
Mathematics
Solve the system of equations by substitution.3x + y = 132x - 7y = 24
A. (5, 2) B. (-5, -2) C. (-5, 2) D. (5, -2)
Mathematics
Solve the problem.Find the cost to asphalt a circular racetrack if asphalt costs $70 per 100 ft2. Use 3.1.4 for ? and round to the nearest dollar. 
A. $25,277 B. $21,980 C. $43,081 D. $17,804
Mathematics
Find the graph of the following polar equation. r = -3 sin (3q)
a. 
b. 
c. 
d. 
e. 
Mathematics