Provide an appropriate response.Prove that the function f is not one-to-one.f(x) = 
What will be an ideal response?
Answers may vary. Possible answer:
Find two numbers a and b for which a ? b and f(a) = f(b). Two such numbers are -1 and 1 because f(-1) = f(1) = 2. Thus, f is not one-to-one.
Mathematics
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Solve the problem.If you toss five fair coins, in how many ways can you obtain at least one head?
A. 16 B. 32 C. 31 D. 15
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Express the sum using summation notation. Use a lower limit of summation not necessarily 1 and k for the index of summation.11 + 14 + 17 + 20 + . . . + 35
A. 
B. 
C. 
D. 
Mathematics
Evaluate the equation.
Mathematics
Find the sum of the geometric series.
A. 75 B. -1230 C. 12 D. -366
Mathematics