Evaluate the integral.
A. - 
ln
+ C
B. - 
ln
+ C
C. - 
ln
+ C
D. 
ln
+ C
Answer: C
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Solve the problem.The system of equations 
= (-2 + 3y)x and 
= (-2 + x)y describes the growth rates of two symbiotic (dependent) species of animals (such as the rhinoceros and a type of bird which eats insects from its back). What happens to the rhinoceros population when the bird population decreases?
A. The rhinoceros population could either increase or decrease. B. The rhinoceros population stays the same. C. The rhinoceros population decreases. D. The rhinoceros population increases.
The algebraic expression has been translated to a word phrase that is ambiguous (unclear). Indicate why the translation is unclear and give a translation that is not ambiguous. 9x + 4 Translation: nine times x plus four
A. Mistake: could be translated as 9(x + 4) Correct: nine times the sum of x and four B. Mistake: could be translated as 9(x + 4) Correct: nine times x increased by four C. Mistake: could be translated as 9(x + 4) Correct: four more than nine times x D. Mistake: could be translated as 9 + 4x Correct: nine times the sum of x and four
Find the reciprocal.5
A. 
B. No reciprocal
C. 5
D. 1
Use the Pythagorean theorem to find the length of the unknown side of the right triangle. Give an exact answer.
A. 49
B. 49
C. 7
D. 14