Solve the problem.A railroad bridge is built over a V-shaped canyon. If the supports are 3 feet long at each end, the center support is 243 feet long, and the supports increase in length by 2 feet with each support (from 3 feet to 243 feet), what is the total length of all the supports?
A. 29,525 ft
B. 29,521 ft
C. 29,523 ft
D. 29,520 ft
Answer: C
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The following table shows the area A, in square miles, and the number S of species on islands in a certain island chain. A 44,171 29,140 4,245 2,504 45 S 73 69 42 42 11? Use power regression to estimate the number of species on an island in the chain that is 3329 square miles in area. Round your answer to the nearest whole number. ?
A. 40 B. 41 C. 37 D. None of the above
Construct a graph for the first ten terms of the sequence.an = 6; an+1 = 
A. 
B. 
C. 
D. 
Find an equation for the line tangent to given curve at the given value of x.y = x2 - x; x = -2
A. y = -5x + 4 B. y = -5x + 2 C. y = -5x - 2 D. y = -5x - 4
Solve.Consider the following population data.Population of Four States from 1970 to 2010 
How much did the population of state D increase from 1980 to 1990?
A. 269,767 B. 662,106 C. 662,206 D. 269,867