Find the numbers at which f is continuous. At which numbers is f discontinuous?f(x) = 3x - 1
A. continuous for all real numbers
B. continuous for all real numbers except x = 
C. continuous for all real numbers except x = 1
D. continuous for all real numbers except x = - 
Answer: A
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Solve the problem.A fair coin is tossed 5 times and heads or tails is noted on each toss. How many different outcomes are there in the sample space?
A. 2 B. 10 C. 32 D. 25 E. none of these
The number line in the following graphic represents fictional net exports in billions of dollars for five countries. Net exports are obtained by subtracting total imports from total exports; a negative net export means the country imported more goods than it exported.
Estimate the net amount of exports for Denmark.
A. -20 billion dollars B. 30 billion dollars C. -40 billion dollars D. -30 billion dollars
Add. Do not use a number line except as a check.-64 + 13
A. 77 B. 51 C. -51 D. -77
Change the following decimal number to hexadecimal form.
A. 16AFA B. 16A23 C. 16AD0 D. 16A82 E. 16A2F