Assuming that the equations define x and y implicitly as differentiable functions 
find the slope of the curve 
at the given value of t.x = t sin t + t, y cos t + y = 2t, t = 
A. 
B. - 
C. 2 + ?
D. 
Answer: D
Mathematics
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Solve the problem.If 999! ? 4 × 102564, which of the following numbers most closely approximates 1000!?
A. 4 × 102564 + 1000 B. 4 × 102564 + 1 C. 4 × 102567 D. 4 × 102566 E. none of these
Mathematics
Solve the equation for the specified variable.A = 
bh for b
A. b = 
B. b = 
C. b = 
D. b = 
Mathematics
Solve the problem.The sales of a mature product (one which has passed its peak) are given by the function 
where t is time in years. Find the sales after 6 years if 
and 
A. 12,462 B. 52,761 C. 24,923 D. 21,451
Mathematics
Solve the system using the inverse that is given for the coefficient matrix.
?
A. {(2, -3, 2)} B. {(2, 4, 2)} C. {(-3, 6, 1)} D. {(2, 9, 6)}
Mathematics