Find the domain and range and describe the level curves for the function f(x,y).f(x, y) = (3x - 3y)3
A. Domain: all points in the x-y plane; range: real numbers z ? 0; level curves: lines
B. Domain: all points in the x-y plane; range: all real numbers; level curves: lines
C. Domain: all points in the x-y plane; range: all real numbers; level curves: lines c ? 0
D. Domain: all points in the x-y plane; range: real numbers z ? 0; level curves: lines c ? 0
Answer: B
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An ice-cream cone has a slant height of 8" and a diameter of 4". Find the surface area of the outside of the cone. ?
A. 16 in2 B. ?20?in2 C. ?16?in2 D. 20 in2 E. ?48?in2
Solve the system by graphing on a calculator. Round to the nearest hundredth if necessary.y = 3-xy = -
A. {(-1, 3)} B. ? C. {(1, -3)} D. {(1, 3)}
Find the slope of the line through the points.(2, -7) and (9, -5)
A.
B.
C. -
D. -
Simplify.
A. -
B. -a
C. -
D. a