Find all the real zeros of 
.
A. x = 
, 4
B. x = 
, 
C. x = 
, -2
D. x = 
, 
E. x = 
, -4
Answer: A
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Find the length of the parametric curve defined over the given interval.x = t + 
, y = 
ln(t8) ; 1 ? t ? 6
A. 16
B. 
C. 
D. 
The position vector of a particle is r(t). Find the requested vector.The acceleration at t = 0 for r(t) = t2i + (8t3 - 10)j + 
k
A. a(0) = 2i + 
k
B. a(0) = 2i - 
k
C. a(0) = 2i - 
k
D. a(0) = 2i - 
k
Use Cramer's rule to solve the linear system. If D = 0, use another method to determine the solution set. x + y = 84x + 4y = 32
A. Cramer's rule does not apply since D = 0; ? B. {(1, 7)} C. Cramer's rule does not apply since D = 0; {(8 - y, y)} D. {(0, 0)}
Solve the problem.The demand function for a certain product is given by:D(p) = 
.Find the marginal demand D'(p).
A. D'(p) = 
B. D'(p) = 
C. D'(p) = 
D. D'(p) = 