Sketch the surface z = f(x,y).f(x, y) = -x2 - y2
A. 
B. 
C. 
D. 
Answer: A
Mathematics
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Add. Do not use a number line except as a check.-1.8 + 6.4
A. 8.2 B. -8.2 C. -4.6 D. 4.6
Mathematics
Graph the equation by plotting points.y = x3 + 2
A. 
B. 
C. 
D. 
Mathematics
Find the specified domain and express it in interval notation.For f(x) = x2 - 9 and g(x) = 2x + 3, what is the domain of 
(x)?
A. (-3, 3)
B. 
C. All real numbers except - 
D. All real numbers
Mathematics
Find the LCM of the set of numbers.18, 24, and 28
A. 672 B. 504 C. 252 D. 168
Mathematics