Decide whether the relation defines a function. Student Test Score
A. Not a function
B. Function
Answer: B
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Find the mean for the given sample data. Unless otherwise specified, round your answer to one more decimal place than that used for the observations.Last year, nine employees of an electronics company retired. Their ages at retirement are listed below. Find the mean retirement age.52?67?6352?67?5868?54?54
A. 58.8 B. 58.0 C. 58.2 D. 59.4
Find the domain of the composite function (g ? f)(x). Write the domain in interval notation.f(x) = 4x2 + 4x + 5, g(x) = 4x - 7
A. (-?, 0) ? (4, ?) B. (-?, ?) C. (-?, 0] D. [0, ?)
Use the discriminant to determine the number of real solutions.4y2 = -5y - 3
A. Two real solutions B. One real solution C. No real solutions
Solve the problem.Find the amount of money in an account after 3 years if $1300 is deposited at 5% annual interest compounded annually.
A. $1509.91 B. $1507.60 C. $1504.91 D. $1508.98