Write in simplest exponent form.x ? x ? x ? x ? x
A. 5x
B. x5
C. 5x
D. 5
Answer: B
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Solve the problem.Find the number of units that must be produced and sold in order to yield the maximum profit, given the following equations for revenue and cost:R(x) = 60x - 0.5x2C(x) = 2x + 6.
A. 59 units B. 64 units C. 62 units D. 58 units
Solve the initial value problem.y'(x) = 8 sec2 2x, y(0) = 2
A. y = 4 tan 2x + 1 B. y = 4 tan 2x - 2 C. y = 4 tan 2x + 2 D. y = 8 tan 2x + 2
Find the coordinate vector [x]B of the vector x relative to the given basis B.b1 = 
, b2 = 
, x = 
, and B = 
A. 
B. 
C. 
D. 
Solve the problem.A rumor is spread at an elementary school with 1200 students according to the model 
where N is the number of students who have heard the rumor and d is the number of days that have elapsed since the rumor began. How many students will have heard the rumor after 5 days?
A. 495 students B. 406 students C. 629 students D. 661 students