Solve the problem. Round your answer to the nearest tenth, if necessary.Sue rowed her boat across and back Lake Bend in 3 hr. If her rate rowing back was 2 mph less than the rate rowing across, and if the distance each way was 7 mi, find her rate rowing across.
A. 3.7 mph
B. 5.9 mph
C. 1.5 mph
D. 5.5 mph
Answer: B
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Solve the problem.How long would it take to drive a distance of 24 miles if you drive at a constant speed of 58 miles per hour? Round your answer to the nearest hundredth if necessary.(Distance = Speed × Time)
A. 0.41 hours B. 1392.0 hours C. 4.14 hours D. 2.42 hours
Find the center, transverse axis, vertices, foci, and the equations of the asymptotes of the hyperbola.(y - 2)2 - 16(x + 1)2 = 16
A. center: (1, -2)
transverse axis: x = 1
vertices: (1, -6) and (1, 2)
foci: (1, -2 - 
) and (1, -2 + 
)
asymptotes: y - 2 = - 4(x + 1) and y - 2 = 4(x + 1)
B. center: (-1, 2)
transverse axis: x = -1
vertices: (0, -1) and (0, 7)
foci: (0, 3 - 
) and (0, 3 + 
)
asymptotes: y - 2 = - 
(x + 1) and y - 2 = 
(x + 1)
C. center: (-1, 2)
transverse axis: x = -1
vertices: (-1, -2) and (-1, 6)
foci: (-1, 2 - 
) and (-1, 2 + 
)
asymptotes: y - 2 = - 4(x + 1) and y - 2 = 4(x + 1)
D. center: (-1, 2)
transverse axis: y = 2
vertices: (1, -4) and (-1, 4)
foci: (-1, - 
) and (-1, 
)
asymptotes: y - 2 = - 4(x + 1) and y - 2 = 4(x + 1)
Solve the proportion. Write the solution in decimal form when applicable.
= 
A. 5.5 B. 2.1 C. 5.6 D. 2.6
Find the direction angle ? for the given vector. Let 0° ? ? < 360° and round ? to the nearest tenth when appropriate.
A. 270° B. 45° C. 116° D. 90°