Suppose sin t = - 
and cos t is negative. What is cos t?
A. 
B. - 
C. - 
D. - 
E. none of these
Answer: D
Mathematics
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Use the graph of y = 
to solve the equation 
where 
and y2 represent linear functions.
A. {0} B. {-6} C. {-5} D. {-4}
Mathematics
Use the intermediate value theorem to show that the polynomial has a real zero between the given values of a and b.a = -1 and b = 0f(x) = 8x3 + 6x + 4
A. f(-1) = 10 and f(0) = 4 B. f(-1) = 10 and f(0) = -4 C. f(-1) = -9 and f(0) = 5 D. f(-1) = -10 and f(0) = 4
Mathematics
Sketch the graph of the given equation over the interval [-2?, 2?].y = sin 
A. 
B. 
C. 
D. 
Mathematics
Simplify. Assume that all variables represent positive numbers.
A. 9
B. 3
C. 
D. 15
Mathematics