Solve the problem.What is the y-intercept of y = cos x?
A. 0
B. 
C. 1
D. ?
Answer: C
Mathematics
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Use Cramer's rule to solve the system.6x + 3y = 64x + y = -2
A. {(2, -6)} B. {(6, -2)} C. {(-6, -2)} D. {(-2, 6)}
Mathematics
Provide an appropriate response.Simplify: 
Fill in the blank(s) with the appropriate word(s).
Mathematics
Solve the problem.Let f(x) = x-1.24 - x2.7. Approximate f(2.72) to the nearest hundredth.
A. x ? -14.35 B. x ? -14.62 C. x ? 1.73 D. x ? 3.39
Mathematics
Graph the quadratic function.f(x) = -x2 + 6x - 8
A. 
B. 
C. 
D. 
Mathematics