Evaluate the integral.
A. - 
e-x8 + C
B. - 
e-x7 + C
C. -7e-x8 + C
D. e-x7 + C
Answer: B
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Find the average rate of change of y with respect to x from P to Q.y = x3 - 9; P(2, -1), Q(2.1, 0.261)
A. 1.261 B. 0.1261 C. 12.61 D. 12.6
Find all possible solutions to the problem.A rectangle has an area of 42 in2. Its length and width are whole numbers. What are the possibilities for the two numbers?
A. 2 and 21, 3 and 14 , 6 and 7 B. 1 and 42, 2 and 28, 3 and 14, 6 and 7 C. 1 and 42, 2 and 21, 3 and 14 , 4 and 8, 6 and 7 D. 1 and 42, 2 and 21, 3 and 14 , 6 and 7
Provide an appropriate response.A tennis racket company has manufacturing costs given by the equation C = 
where x is the number of rackets manufactured and C is the cost to manufacture each racket. What number of rackets must be manufactured to bring the cost per racket to $4?
A. 40,000 rackets B. 44,000 rackets C. No number of rackets manufactured satisfies this goal. D. Not enough information is given to answer this question.
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