Solve the problem.The distance d in miles that can be seen on the surface of the ocean is given by 
where h is the height in feet above the surface. How high (to the nearest foot) would a platform have to be to see a distance of 20.5 miles?
A. 420 ft
B. 546 ft
C. 158 ft
D. 249 ft
Answer: D
Mathematics
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Solve the equation and state the solution set.
+ 
= 
A. 
B. 
C. 
D. 
Mathematics
Determine the maximum number of turning points of f.f(x) = x4( x4 + 1)(2x + 5)
A. 9 B. 8 C. 16 D. 4
Mathematics
Solve.The number B (measured in thousands) of a certain type of endangered bird can be approximated by the equation B = 1.62x2 + 3.3x + 6.38, where x is the number of years after 1998. How many birds does the equation predict there will be in the year 2004?
A. 68,000 birds B. 84,500 birds C. 35,900 birds D. 78,120 birds
Mathematics
Simplify the expression by combining like terms.9x + 2 + 3x - 8
A. 6x B. 12x - 6 C. 6x - 6 D. 6
Mathematics