Give an appropriate answer.If f(x, y, z) = (x4 + y2 + z)2 find fyy(x, y, z).
A. 4x4 + 12y2 + 4z
B. 8y2(x4 + y2 + z)
C. 4y2(x4 + y2 + z)
D. 2x4 + 6y2 + 2z
Answer: A
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Perform the indicated operations.(3x - 11y)(-4x + 3y + 1)
A. -12x2 + 9xy + 3x - 33y2 B. -12x2 + 53xy + 3x - 33y2 - 11y C. -12x2 + 44xy + 3x - 33y2 - 11y D. -12x2 + 53xy + 53y2
Provide an appropriate response.Solve the system of equations using the addition method:x - y =-5-x + y =-5
A. dependent; many solutions B. x = 0, y = 5 C. inconsistent; no solution D. x = -5, y = 0
Solve the problem.Mara can type 1120 words in 
hour (40 minutes). How many words per minute can she type?
A. 28 words/minute B. 19 words/minute C. 42 words/minute D. 747 words/minute
Find area of figure. Round to the nearest hundredth if necessary.
A. 270 in.2 B. 182 in.2 C. 170 in.2 D. 121 in.2