Determine if the following is a function or not. The set of whole numbers f(x) = 
, where x ? {1, 4, 9, 25, 36}.
A. Yes
B. No
Answer: A
Mathematics
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List the terms of the expression. Then identify the coefficient of each term.2y3 - 4y2 - y
A. 2y3, 4y2, y; 2, 4, 1 B. 2y3, -4y2, -y; 2, -4, -1 C. 2y3, -4y2, -y; 2, 4, 1 D. 2y3, -4y2, y; 2, -4, 1
Mathematics
Show by substitution whether the number r is a solution of the corresponding quadratic equation.x2 - 4x + 3 = 0; r = -1
A. Yes B. No
Mathematics
Find the domain of the rational function.r(x) = 
A. All real numbers except -7 and 7. B. All real numbers except 0 and-7. C. All real numbers except 0 and 7. D. All real numbers except 0.
Mathematics
Solve the problem.A semicircular driveway has a diameter of 60 ft. How long is the driveway?(Use 3.14 for ? .)
A. 92.2 ft B. 600 ft C. 94.2 ft D. 188.4 ft
Mathematics