Decide whether the statement is true or false. If it is false, tell why.If k is a perfect square, then x2 = k will have two integer solutions.
A. True
B. False; the equation will have two rational solutions that are not integers.
C. False; the equation will have one integer solution
Answer: A
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For the given functions f and g , find the indicated composition.f(x) = x2 - 2x - 5, g(x) = x2 + 2x + 1(f?g)(5)
A. 1311 B. 1219 C. 23 D. 115
Determine whether the graph is that of a function. If it is, use the graph to find its domain and range, the intercepts, if any, and any symmetry with respect to the x-axis, the y-axis, or the origin.
A. function domain: {x|x > 0} range: all real numbers intercept: (0, 1) symmetry: origin B. function domain: all real numbers range: {y|y > 0} intercept: (1, 0) symmetry: none C. function domain: {x|x > 0} range: all real numbers intercept: (1, 0) symmetry: none D. not a function
Identify any x-intercepts and y-intercepts in the graph respectively.
A. (-6, 0); (0, 2) B. (-6, 0); (0, 0) C. (0, 0); (0, 2) D. (2, 0); (0, -6)
P( X = 12); X is Binomial (20, 0.6).
Find the probability for the given random variable.