Solve the problem.According to Newton's Inverse Square Law, the force exerted by the earth on a space capsule is 
where x is the distance (in miles, for instance) from the capsule to the center of the earth. The force F(x) required to lift the capsule is given by 
How much work is done in propelling a 
capsule out of the earth's gravitational field? Note: The radius of the earth is 3960 miles.
A. 5.94 × 106
B. 9.90 × 106
C. 7.92 × 106
D. 1.98 × 106
Answer: A
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Solve the problem.John is 7 times as heavy as his dog.Determine which of the statement's below is true.
A. John weighs 600% more than his dog. B. John weight is 600% of his dog's weight. C. John weighs 700% more than his dog. D. John's dog weighs 600% less than John.
Solve the problem.What is the coefficient of a7c3 in the expansion of (a + 2b - 3c)10?
A. 960 B. -3240 C. -720 D. 120
Solve.The new mural in the student union shown in the sketch below is in the shape of half an ellipse. Find the equation for the ellipse if the center of the ellipse is at point A.
A. 
+ 
= 1
B. 
+ 
= 1
C. 
+ 
= 1
D. 
+ 
= 1
Find anand a6 for the following arithmetic sequence.a15 = -10, a17 = -44
A. an = 228 + 17(n - 1), a6 = 1180 B. an = 228 - 17(n - 1), a6 = 126 C. an = 228 - 17(n - 1), a6 = 330 D. an = 228 - 17(n - 1), a6 = 143