Solve the equation. Round the solution to four decimal places, if necessary.ln (3x) + ln (7x) = 6
A. 3.7417
B. 0.5345
C. 4.383
D. 92.0432
Answer: C
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Find the percentage rate of change of f(x) at the indicated value of x. Round to the nearest tenth of a percent.f(x) = 4500 - 4x2; x = 20
A. 3.6% B. -1.0% C. 5.5% D. -5.5%
A vacationer on an island 8 miles offshore from a point that is 48 miles from a town to which the vacationer must travel occasionally. (See the figure.) The vacationer has a boat capable of traveling 30 mph and can go by auto along the coast at 55 mph. At what distance x from the point on shore closest to the vacationer on the island should the boat be left to minimize the time it takes to get to town? Round your answer to one decimal place.
?
Where 
, 
?
A. ?6.1 miles
B. ?5.2 miles
C. ?5.9 miles
D. ?3.8 miles
E. ?4.3 miles
The bar graph below shows the number of students by major in the College of Arts and Sciences. Answer the question.
Which major has the largest number of students?
A. Math B. English C. History D. Science
According to the New York Times/CBS poll of March, 2005, 75% agreed that it should be the government's responsibility to provide a decent standard of living for the elderly, and 44% agreed that it would be a good idea to invest part of their Social Security taxes on their own. What is the smallest percentage of people who could have agreed with both statements? What is the largest percentage of people who could have agreed with both statements? ?
A. The smallest percentage is 20%, the largest percentage is 100%. B. The smallest percentage is 19%, the largest percentage is 31%. C. The smallest percentage is 19%, the largest percentage is 44%. D. The smallest percentage is 14%, the largest percentage is 99%. E. The smallest percentage is 21%, the largest percentage is 44%.