Insert parentheses in order to make the statement true. More than one set of parentheses may be needed.3 ? 6 - 2 = 12
A. (3 ? 6) - 2 = 12
B. 3 ? (6 - 2) = 12
C. (3)(6)(-2) = 12
D. 3 ? 6 (-2) = 12
Answer: B
Mathematics
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The median for this set of numbers: 1.5cc, 4.0cc, 6.5cc, 8.0cc, 8.0cc, 8.0cc, 10.5cc, 12.0cc, 12.0cc; is
A. 8.0cc B. 8.0cc and 12.0cc C. 7.8cc D. none
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Use Pascal's triangle to answer the question.Guess a formula for the sum of the entries in the nth row of Pascal's triangle.
A. 2n + 1 B. 2n-1 C. 2n - 1 D. 2n
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Simplify by writing the expression with positive exponents. Assume that all variables represent nonzero real numbers.
-2
A. 
B. 
C. 
D. 
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Find the polar form of the complex number.-4
- 4i
A. 8
B. 8
C. 4
D. 4
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