Solve the problem.A certain country's Consumer Price Index is approximated by A(t) = 100e0.024t, where t represents the number of years. Use the function to determine the year in which costs will be 50% higher than in year 0.
A. year 13
B. year 19
C. year 17
D. year 15
Answer: C
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Solve the problem by estimating.Enrollment figures at a community college showed an increase from 35,639 credit hours in 2005 to 67,274 credit hours in 2006. Round each number to the nearest thousand to estimate the increase.
A. 32,000 credit hours B. 31,600 credit hours C. 31,000 credit hours D. 31,700 credit hours
Solve the problem.The graph depicts a relationship between scores achieved on an unspecified standardized test and family income. Find the slope of the line.
A. 1.5 point(s) per thousand dollars B. 150 points per thousand dollars C. 15.1 points per thousand dollars D. 1500 points per thousand dollars
Graph the function on your calculator to determine the domain and range from the graph.h(x) = 
A. Domain: [-5, ?); range: [0, ?) B. Domain: (-?, ?); range: [-5, ?) C. Domain: (-?, ?); range: [0, ?) D. Domain: [0, ?); range: (-?, ?)
Factor completely. State that the polynomial is prime if it cannot be factored.81x2 - 4
A. prime B. (9x + 2)2 C. (9x + 2)(9x - 2) D. (9x - 2)2