Approximate the value using a calculator. Express answer rounded to three decimal places.5.7173.748
A. 21.427
B. 21,317.219
C. 1907.270
D. 688.440
Answer: D
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Solve.The function h(t) = -16t2 + 80t - 96 gives the height h, in feet, of a flare fired from the bottom of a gorge 96 feet deep with an initial velocity of 80 ft/sec. The flare fired is visible only when it is above the rim (h = 0). During what interval can the flare be seen?
A. (0, 2) B. (6, 7) C. (4, 5) D. (2, 3)
Solve the problem.A satellite is to be put into an elliptical orbit around a moon. The moon is a sphere with radius of 185 km. Determine an equation for the ellipse if the distance of the satellite from the surface of the moon varies from 932 km to 523 km. Assume that the x-axis is the minor axis of the ellipse.
A. 
+ 
= 1
B. 
+ 
= 1
C. 
+ 
= 1
D. 
+ 
= 1
Find the indicated sum or difference, if it is defined.
+ 
A. 
B. not defined
C. 
D. 
Express the interval in set builder notation and graph the interval on a number line.[-5, 1]
A. {x 
}
B. {x 
}
C. {x 
}
D. {x 
}