Use the circle graph to solve the problem.In a school survey, students showed these preferences for instructional materials.
About how many students would you expect to prefer written materials in a school of 450 students?
A. About 162 students
B. About 81 students
C. About 9 students
D. About 41 students
Answer: D
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Find the angle between the given vectors to the nearest tenth of a degree.<-3, -8>, <6, -8>
A. 67.4° B. 28.7° C. 18.7° D. 57.4°
Find the equation of the line tangent or normal (as indicated) to the given curve with the given slope.y = (4x - 7)3, normal line with slope - 
, x > 0
A. 12x - y - 14 = 0 B. x + 12y - 14 = 0 C. x - 12y - 14 = 0 D. 12x + y - 14 = 0
Decide whether the perimeter or area would be used to solve a problem concerning the measure of the quantity.Measuring a room for baseboards
A. Perimeter B. Area
Provide an appropriate response.Consider the arrangements of the letters in the word ALGEBRA. Is this a combination, a permutation, or neither?
A. Permutation B. Combination C. Neither