Decide if the answer is reasonable or unreasonable by using front end to estimate the answer. If the exact answer is not reasonable, find the correct answer.2186.8 ÷ 19.7 = 11.1
A. Unreasonable, should be 1.11
B. Unreasonable, should be 111
C. Reasonable
D. Unreasonable, should be 1110
Answer: B
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Determine the values of the given functions as indicated rounded to four decimal places. Find sin 105° by using 105° = 60° + 45°.
A. 0.7071 B. 0.9330 C. 0.9659 D. -0.2588
Solve the problem.The total sales in dollars of some small businesses fluctuates according to the equation 
, where x is the time in months, with 
corresponding to January, 
, and 
Determine the month with the least sales and give the sales in that month.
A. June; $4,300 B. December; $8,500 C. September; $4,200 D. March; $12,800
Solve the equation.3.5 = 
A. 31.5 B. 11.5 C. 12.5 D. 30.5
Find the derivative of the function and evaluate f '(x) at the given value of x.
?
What will be an ideal response?