Solve the system using substitution.
A. (-4, 0)
B. (-3, -4)
C. (4, -1)
D. empty set; inconsistent system
Answer: A
Mathematics
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Find all the roots of the given equation.x4 - 81 = 0
A. -3, -3j, 3, 3j B. -3 - 3j, -3 + 3j, 3 - 3j, 3 + 3j C. -3, 3 D. -3j, 3j
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Decide whether or not the given equation is an identity.
= 
A. Yes B. No
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Solve the problem.Find the volume that remains after a hole of radius 1 is bored through the center of a solid cylinder of radius 2 and height 4.
A. 6? B. 12? C. 4? D. 16?
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Substitute the value(s) for the variable(s) and then evaluate.
? 8 - 52; S = 32, n = 6
A. 98,279 B. 3047 C. 3067 D. 23
Mathematics