Evaluate.
A. x2 + 2x + 1
B. 2x2 + x + 1
C. x2 + x + 2
D. x2 + x + 1
Answer: B
Mathematics
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Sketch the given surface.x2 + y2 = z2
What will be an ideal response?
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Find the indicated decile or percentile.The weights (in pounds) of 18 randomly selected adults are given below. Find the fourth decile , D4.
A. 146 B. 145 C. 144 D. 143
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Express the number in scientific notation.0.0077
A. 7.7 × 10-3 B. 77 × 10-1 C. 77 × 10-4 D. 7.7 × 10-4
Mathematics
Perform the indicated operations.12 ? 11 - (11 - 8) ÷ 3 - (8 - 6)
A. 41 B. 117 C. 129 D. 35
Mathematics