Solve the problem. Round your answer to the nearest tenth, if necessary.Bill can row 3 mph in still water. It takes him 3 hr 36 min to go 3 mi upstream and then return. Find the speed of the current.

A. 1.5 mph
B. 2.5 mph
C. 3 mph
D. 2 mph


Answer: D

Mathematics

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Provide an appropriate response.A micrometer is designed so that the screw thread makes the spindle advance 0.025 in. in one complete turn. How far will the spindle advance in 30 complete turns?

A. 75 in. B. 0.075 in. C. 7.5 in. D. 0.75 in.

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Arrange the polynomial in descending powers of the variable. Then find its degree and leading coefficient.7.1y2 + 5.2x6 - 4.9 - 1.5x

A. 5.2x6 + 7.1y2 - 1.5x - 4.9, degree: 4, leading coefficient: 5.2 B. 5.2x6 + 7.1y2 - 1.5x - 4.9, degree: 6, leading coefficient: 5.2 C. 7.1x6 + 5.2y2 - 1.5x - 4.9, degree: 6, leading coefficient: 7.1 D. 7.2y2 + 5.1x6 - 4.9x - 1.5, degree: 2, leading coefficient: 7.2

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Determine whether there is sufficient information for solving a triangle, with the given combination of angles and sides, by the law of sines.a, b, and c

A. Yes B. No

Mathematics

Determine if the function is concave up or concave down in the first quadrant.y = x5.4

A. Concave down B. Concave up

Mathematics