Determine the x-values at which the graphs of f and g cross. If no such x-values exist, then state that fact.f(x) = x2 + 2x - 3, g(x) = 2x + 1
A. x = -1.4142136 and x = 1.41421356
B. x = -2 and x = 2
C. x = -4 and x = 4
D. None exist.
Answer: B
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Determine which, if any, of the three statements are equivalent.I) Gasoline costs $1.99 per gallon if and only if you live in Cook County.II) You do not live in Cook County and gasoline does not cost $1.99 per gallon.III) If you do not live in Cook County then gasoline does not cost $1.99 per gallon and if gasoline does not cost $1.99 per gallon then you do not live in Cook County.
A. I and II are equivalent B. I and III are equivalent C. II and III are equivalent D. None are equivalent
Solve the problem.Jeanne is currently taking college economics. The instructor often gives quizzes. On the past nine quizzes, Jeanne got the following scores:
Determine what test scores are outliers.
A. 53 B. 98, 99 C. 98 D. 80, 53
Round each number to the nearest hundred to estimate the sum or difference.5515 + 7651 + 3564
A. 16,000 B. 16,800 C. 16,700 D. 18,000
Find the mean of the given data set.7.8 m, 8.7 m, 5.5 m, 8.7 m, 5.3 m
A. 6 m B. 7.8 m C. 7.2 m D. 8.7 m