Solve the problem.A flare fired from the bottom of a gorge is visible only when the flare is above the rim. If it is fired with an initial velocity of 208 ft/sec, and the gorge is 672 ft deep, during what interval can the flare be seen? 
A. 12 < t < 13
B. 18 < t < 19
C. 6 < t < 7
D. 0 < t < 6
Answer: C
Mathematics
You might also like to view...
Solve the problem.In one area, the lowest angle of elevation of the sun in winter is 21° 7'. A fence is to be built 
away from a plant in the direction of the sun. (See drawing) Find the maximum height, x , for the fence so that the plant will get full sun. Round your answer to the tenths place when necessary.
A. 5.1 ft B. 4.1 ft C. 4.8 ft D. 6.3 ft
Mathematics
Graph the linear inequality.y > 3
A. 
B. 
C. 
D. 
Mathematics
Use the figure to solve the inequality.f(x) < 0
A. {x|-5 ? x ? 2}; [-5, 2] B. {x|x < -5 or x > 2}; (-?, -5) or (2, ?) C. {x|-5 < x < 2}; (-5, 2) D. {x|x ? -5 or x ? 2}; (-?, -5] or [2, ?)
Mathematics
Add the integers.18 + 14
A. 4 B. -32 C. -4 D. 32
Mathematics