Solve the problem.In a school survey, students showed these preferences for instructional materials.About how many students would you expect to prefer lectures in a school of 400 students?

A. About 72 students
B. About 18 students
C. About 144 students
D. About 80 students


Answer: A

Mathematics

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Solve the problem.The velocity of a body of mass m falling from rest under the action of gravity is given by the equation  where k is a constant that depends on the body's aerodynamic properties and the density of the air, g is the gravitational constant, and t is the number of seconds into the fall. Find the limiting velocity, limt?? v, of a 460 lb. skydiver (mg = 460) when k = 0.006.

A. 276.89 ft/sec B. There is no limiting speed. C. 0.00 ft/sec D. 87.56 ft/sec

Mathematics

Provide an appropriate response.Make this statement true:  2 = 1 qt

A. 2 gal = 1 qt B. 2 pt = 1 qt 

Mathematics

The following table shows the stopping distance D, in feet, for a car that is traveling at a speed of  S miles per hour.  S 25 35 40 60 75 D 89 138 167 304 436? Use power regression to answer the following question. If the speed is cut in half, how is the stopping distance affected? Round your answer to two decimal places. ?

A. The stopping distance is multiplied by 0.37. B. The stopping distance is multiplied by 0.50. C. The stopping distance is multiplied by 1.52. D. The stopping distance is multiplied by 1.20.

Mathematics

Find the Taylor polynomial of order 3 generated by f at a.f(x) = ln x, a = 4

A. P3(x) = ln 4 +  -  + 
B. P3(x) =  -  +  - 
C. P3(x) = ln 4 -  +  - 
D. P3(x) =  +  +  + 

Mathematics