Find all rational zeros.f
= x4 + 2x3 + 2x2 - 4x - 8
A. No rational zeros
B. -2, 2
C. 2, -1
D. -2, -3
Answer: A
Mathematics
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Provide an appropriate answer.Find 
when r = -1 and s = -3 if w(x, y, z) = xz + y2, x = 5r + 6, y = r + s, and z = r - s.
A. 
= -1
B. 
= 10
C. 
= 7
D. 
= 3
Mathematics
List the factors of the number.84
A. 1, 2, 3, 4, 5, 6, 7, 8, 9, 12, 14, 21, 28, 42, 84 B. 1, 2, 3, 4, 6, 7, 12, 14, 21, 42, 84 C. 1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84 D. 1, 2, 3, 4, 7, 14, 21, 28, 42, 84
Mathematics
Simplify the radical expression. Indicate if the expression is not a real number.
A. 40 B. 10 C. Not a real number D. 9
Mathematics
Match the story with the correct figure.The height of an animal as a function of time.
A. 
B. 
C. 
D. 
Mathematics