Solve.Line l1 contains the points (-2, 3) and (1, 0). Find the slope of the line l2 such that the angle from l1 to l2 is 60°. Round your answer to 2 decimal places.
A. 0.29
B. 0.32
C. 0.23
D. 0.27
Answer: D
Mathematics
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Solve the equation.x2 = -18x - 81
A. {-9, 9} B. {-9} C. {0, 9} D. {9}
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Find the percent. Round to the nearest tenth of a percent.385 suburbs is what percent of 1790 suburbs?
A. 0.2% B. 464.9% C. 21.5% D. 0%
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Solve the problem.The graph shows the average annual cost (in dollars) of tuition and fees at a certain 2-year college for selected years, where year 1 represents 1992, year 3 represents 1994, and so on. The equation of the line of "best fit" is 
, where f(x) is the cost in the year x. Predict the average annual cost in 2004 to the nearest dollar.
A. $1409 B. $1438 C. $1467 D. $1496
Mathematics
Plot the point in the number plane.
A. 
B. 
C. 
D. 
E. 
Mathematics