Provide an appropriate response.List all positive integer pairs that have a product of 18.
A. 3, 6
B. 2, 9; 3, 6
C. 1, 18; 2, 9; 3, 6
D. 1, 18
Answer: C
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Use the following definitions to determine if the statement is true or false. N = {x : x is a natural number}I = {x : x is an integer}R = {x : x is a real number}W = {x : x is a whole number}Q = {x : x is a rational number}Q is a proper subset of N, I, and W.
A. True B. False
Solve the problem.If (-1, 2) is the endpoint of a line segment, and (2, 6) is its midpoint, find the other endpoint.
A. (5, -2) B. (7, 8) C. (5, 10) D. (-7, -6)
Express the exercise as a system of linear equations, then find the solution. Use a calculator where appropriate.The sum of two angles is 129°. One angle is 21° less than twice the other. Find the angles.
A. 48° and 81° B. 50° and 79° C. 48° and 75° D. 75° and 54°
Provide an appropriate response.Suppose that 
= 14. Find 
, if f is odd.
A. -42 B. 42 C. 14 D. -14