Determine an appropriate viewing window for the given function and use it to display its graph.f(x) = 
A. 
B. 
C. 
D. 
Answer: A
Mathematics
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Solve the problem.If the shaded figure is a gnomon to the white rectangle, then x =
A. 12. B. 6. C. 18. D. 8. E. none of these
Mathematics
Solve. Give an exact answer unless indicated otherwise.Line l1 contains the points (-3, 4) and (3, -2). Find the slope of the line l2 such that the angle from l1 to l2 is 45°.
A. 
B. 0
C. - 
D. 
Mathematics
Solve the problem.The hydrogen ion concentration of a substance
is about 2.9 x 10-12 moles per liter. Find the pH. Round to the nearest tenth. Use the formula pH = -log [H+].
A. -12.5 B. 12.5 C. 11.5 D. 11.8
Mathematics
Evaluate the expression.
2
A. 
B. - 
C. 
D. - 
Mathematics