Solve the problem.A race track is 506 meters long. If a driver goes around the race track twice, how many kilometers did the driver travel?
A. 506,000 km
B. 0.506 km
C. 1,012,000 km
D. 1.012 km
Answer: D
Mathematics
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Solve triangle ABC. If necessary, round the answer to the nearest tenth.a = 5.50, b = 9.2, C = 122.1°
A. No triangle exists. B. c = 15.9, A = 23°, B = 34.9° C. c = 18.8, A = 19°, B = 38.9° D. c = 13, A = 21°, B = 36.9°
Mathematics
Write the expression in the standard form a + bi.
10
A. 
+ 
i
B. 
- 
i
C. - 
+ 
i
D. - 
- 
i
Mathematics
Find the curve y = f(x) in the xy-plane that has the given properties.
= 24x and the graph of y passes through the point (0, 9) and has a horizontal tangent there.
A. y = 4x3 - 9 B. y = 4x3 + 9 C. y = 12x3 + 9 D. y = 12x2 + 9
Mathematics
Find the sum of the arithmetic series using a formula.4 + 8 + 12 + . . . + 248
A. S62 = 7564 B. S62 = 7688 C. S62 = 7938 D. S62 = 7812
Mathematics