Solve the problem. Round to the nearest hundredth.80 is 30% of what number?
A. 266.67
B. 24.00
C. 2666.70
D. 26.67
Answer: A
Mathematics
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Solve the equation.
= 
A. {-12} B. {3} C. {4} D. {-4}
Mathematics
Sketch the surface z = f(x,y).f(x, y) = 1 - 
A. 
B. 
C. 
D. 
Mathematics
Write the inequality in interval notation.-7 < x < 7
A. (-7, 7] B. (-?, 7) C. (-7, 7) D. [-7, 7]
Mathematics
Solve the problem.At the two points where the curve x2 - xy + y2 = 16 crosses the x-axis, the tangents to the curve are parallel. What is the common slope of these tangents?
A. 1 B. -1 C. -2 D. 2
Mathematics