Match the graph to one of the listed functions.
A. f(x) = x2 - 2x - 1
B. f(x) = x2 + 2x
C. f(x) = x2 - 2x
D. f(x) = x2 + 2x - 1
Answer: C
Mathematics
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Solve the problem.How many 3-digit numbers can be formed using the digits 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, if repeated digits are allowed and the first digit may not be a 0?
A. 1000 B. 899 C. 900 D. 27
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Multiply.
A. 1428 B. 1418 C. 1528 D. 1438
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Determine whether the positive or negative sign makes the equation correct.cos (11?/6) = ±
A. Negative sign B. Positive sign
Mathematics
Solve the problem.Solve the formula a + b = s + r for r.
A. r = a + b - s
B. r = s(a + b)
C. r = 
+ b
D. r = 
Mathematics