Graph the solution of the system. x + y ? 7y ? 7x - 3x ? 0y ? -3
A. 
B. 
C. 
D. 
Answer: D
Mathematics
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Find the indicated derivative.Find y " if y = 5x sin x.
A. y " = - 5x sin x B. y " = 10 cos x - 5x sin x C. y " = 5 cos x - 10x sin x D. y " = - 10 cos x + 5x sin x
Mathematics
Solve the problem, using simple interest. Round your answer, as needed.Diego paid $156.35 interest over 
year on a loan for $5300. What interest rate did he pay?
A. 5.9% B. 12.5% C. 12.3% D. 11.8%
Mathematics
Plot the point given in polar coordinates.
A. 
B. 
C. 
D. 
Mathematics
Use the Intermediate Value Theorem to determine whether the polynomial function has a zero in the given interval.f(x) = -7x4 + 6x2 + 2; [-2, -1]
A. f(-2) = -86 and f(-1) = -1; no B. f(-2) = 86 and f(-1) = -1; yes C. f(-2) = 86 and f(-1) = 2; no D. f(-2) = -86 and f(-1) = 1; yes
Mathematics