Evaluate the expression.
3
A. 
B. 3
C. 
D. 
Answer: C
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Analyze the graph and write the equation of the function it represents in standard form f(x) = a(x - h)2 + k.
A. f(x) = -(x + 2)2 + 4 B. f(x) = -(x + 2)2 - 4 C. f(x) = (x + 2)2 - 4 D. f(x) = (x + 2)2 + 4
Perform the indicated operations and write the answer in the form 
where a and b are real numbers.4i + (-4 - i)
A. -4 + 3i B. 4 - 5i C. -4 + 5i D. 4 - 3i
The snow pack at a certain ski resort at the beginning of ski season averages 23". After that it grows at a rate on average of 3.4 per day until the end of the season.
(a) What is the snowpack on the fourth day of the season? What is it on the 10th day? (b) Write an equation expressing the snowpack, S, in terms of the day, d, of the ski season. (c) What is the slope of the line this equation represents? (d) What should be the expected snowpack on the 31st day of the season?
Solve the problem.The weekly sales in thousands of items of a product has a seasonal sales record approximated by 
(t is time in weeks with 
referring to the first week in the year). During which week(s) will the sales equal 86,400 items?
A. week 21 and week 30 B. week 4, week 20, and week 52 C. week 30 and week 47 D. week 4 and week 47