Evaluate using integration by parts.
dx
A. 55.2
B. 6.70
C. 40.2
D. 9.48
Answer: C
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Use a graphing calculator to solve the equation to the nearest tenth.x3 + 3x2 - 7x - 21 = 0
A. 3, 2.5, -2.5 B. 3, 2.6, -2.6 C. -3, 2.6, -2.6 D. -3, 2.7, -2.7
Solve the triangle. Round to the nearest tenth when necessary or to the nearest minute as appropriate.B = 53.2°C = 100.6°b = 31.5
A. A = 24.2°, a = 40.7, c = 19.4 B. A = 26.2°, a = 17.4, c = 38.7 C. A = 26.2°, a = 19.4, c = 40.7 D. A = 24.2°, a = 38.7, c = 17.4
Provide an appropriate response.For the exponential expression pn = 1, the variable p may equal ? .
What will be an ideal response?
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