Add. 2x4 - 8x3 + 2x2 + 1
A. -12x18 + 9
B. 5x8 - 12x6 - 5x4 + 9
C. 5x4 - 12x3 - 5x2 + 9
D. -3x4 - 3x3 + 10x2 - 5
Answer: C
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Using Green's Theorem, find the outward flux of F across the closed curve C.F = - 
i ; C is the region defined by the polar coordinate inequalities 
and 
A. 
B. 
C. - 
D. 0
Find the average velocity of an object which follows the position function s(t) over the given interval.s(t) = 
, [2, 8]
A. - 
B. 2
C. 7
D. 
Solve the problem.The pH of a solution ranges from 0 to 14. An acid has a pH less than 7. Pure water is neutral and has a pH of 7. The pH of a solution is given by 
where x represents the concentration of the hydrogen ions in the solution in moles per liter. Find the hydrogen ion concentration if the 
A. 3.98 × 10-4 B. 2.51 × 10-4 C. 2.51 × 10-5 D. 3.98 × 10-5
Combine and simplify, if possible.
- 7
+ 2
A. -37
B. -5
C. -37
D. -5