Decompose into partial fractions.
A. 
- 
B. 
+ 
C. 
+ 
D. 
- 
Answer: C
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Use implicit differentiation to find dy/dx and d2y/dx2.xy - x + y = 2
A. 
= - 
; 
= 
B. 
= 
; 
= 
C. 
= 
; 
= 
D. 
= - 
; 
= 
Solve the problem.The function t(x) = -1.29x2 + 8.80x + 42.69 represents the temperature in Riversbend, IL from 11 P.M. on March 6, 2008 until 7 A.M. on March 7, 2008, where x is the number of hours after midnight on March 6, 2008. Determine the x-coordinate of the vertex of the graph of t(x). Then use this value in the function t(x) to estimate the maximum temperature. Round your answer for the vertex to the nearest hour. Round your answer for the temperature to the nearest degree.
A. x = 3.4; t = 57.6° B. x = 3; t = 58° C. x = -3; t = -2° D. x = 3; t = 68°
Rewrite the expression as a simplified expression containing one term.sin 
cos 
+ cos 
sin 
A. 
B. - 
C. - 
D. 
Determine if the number is divisible by 2, 3, 4, 5, 6, 8, 9, and/or 10. If it is not divisible by any of these, then answer "None".30
A. None B. 2, 3, 5, 6 C. 2, 3, 5, 10 D. 2, 3, 5, 6, 10