Find the mean for the group of data items. If necessary, round the answer to nearest tenth.30, 47, 78, 20, 111, 83
A. 61
B. 73.8
C. 61.5
D. 62
Answer: C
Mathematics
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xy + 2y2 - 29 = 0
A. parabola B. ellipse C. hyperbola D. circle
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Simplify the expression 
as much as possible after substituting 
for x.
What will be an ideal response?
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Graph the numbers on a number line.-11, -9, -7, -5
A. 
B. 
C. 
D. 
Mathematics
Factor the sum or difference of cubes.2u3 - 16
A. (u - 2)(u2 + 2u + 4) B. 2(u + 2)(u2 - 2u + 4) C. (u + 2)(u2 - 2u - 4) D. 2(u - 2)(u2 + 2u + 4)
Mathematics