Find the center (h, k) and radius r of the circle. Graph the circle.x2 + y2 - 12x - 10y + 57 = 0
A. (h, k) = (6, 5); r = 2
B. (h, k) = (-6, -5); r = 2
C. (h, k) = (-6, 5); r = 2
D. (h, k) = (6, -5); r = 2
Answer: A
Mathematics
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Find the derivative.s = t3 tan t - 
A. 
= - t3 sec2 t + 3t2 tan t + 
B. 
= t3 sec t tan t + 3t2 tan t - 
C. 
= t3 sec2 t + 3t2 tan t - 
D. 
= 3t2 sec2 t - 
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Find the indicated root and express the answer in standard form.Square roots of i
A. -1, 1
B. 
+ 
i, - 
- 
i
C. 
- 
i, - 
+ 
i
D. -i, i
Mathematics
Solve the problem.Use your graphing calculator to find how long it will take for $9000 invested at 
per year compounded daily to triple in value. Find the answer to the nearest year. Use 365 days for a year.
A. 0 yr B. 44,219 yr C. 33 yr D. 4,402,084 yr
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Graph the function.f(x) = 2.184x
A. 
B. 
C. 
D. 
Mathematics