Provide an appropriate response.To complete the square of 2x2 + 4x = 8, is it ever a good idea to divide by the coefficient of x2?
Fill in the blank(s) with the appropriate word(s).
Yes
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Solve the problem.To find the distance AB across a river, a distance BC = 805 m is laid off on one side of the river. It is found that B = 108.0° and C = 12.6°. Find AB.
A. 207 m B. 204 m C. 176 m D. 173 m
Solve each system of equations using matrices (row operations). If the system has no solution, say that it is inconsistent.
A. x = 5, y = 3, z = 9 B. x = -5, y = 9, z = 10 C. x = 5, y = 9, z = 3 D. Inconsistent
Solve the problem.In a school survey, students showed these preferences for instructional materials. Answer the question. 
About how many students would you expect to prefer radio in a school of 250 students?
A. About 5 students B. About 90 students C. About 45 students D. About 13 students
Solve the problem.If an object is dropped from a tower, then the velocity, V (in feet per second), of the object after t seconds can be obtained by multiplying t by 32 and adding 10 to the result. Find an equation relating the velocity, V, to the number of seconds, t. Use this equation to find the velocity of the object at time 
A. 68.9 ft/sec B. 66.9 ft/sec C. 67.6 ft/sec D. 65.6 ft/sec