Solve.The relationship between escape velocity E and circular orbit velocity C is given by 
If the escape velocity of a planet is 45,000 miles per hour, calculate the velocity necessary for a circular orbit around this planet.
A. 31,820
B. 63,640
C. 300
D. 22,500
Answer: A
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The nth term of a sequence is given. Find the first 4 terms.an = 
A. - 
, - 
, - 
, - 
B. 
, - 
, - 
, - 
C. 
, 
, 
, 
D. 
, - 
, 
, - 
Solve the problem.A summer camp wants to hire counselors and aides to fill its staffing needs at minimum cost. The average monthly salary of a counselor is $2400 and the average monthly salary of an aide is $1100. The camp can accommodate up to 45 staff members and needs at least 30 to run properly. They must have at least 10 aides, and may have up to 3 aides for every 2 counselors. How many counselors and how many aides should the camp hire to minimize cost?
A. 12 counselors and 18 aides B. 35 counselors and 10 aides C. 27 counselors and 18 aides D. 18 counselors and 12 aides
Use the figure to solve the inequality.
f(x) > g(x)
A. {x|-1 < x < 2}; (-1, 2) B. {x|x ? -1 or x ? 2}; (-?, -1] or [2, ?) C. {x|-1 ? x ? 2}; [-1, 2] D. {x|x < -1 or x > 2}; (-?, -1) or (2, ?)
Determine if the vertex of the graph of the equation is a maximum or minumim point.
?
?
A. vertex is at a maximum point B. vertex is at a minimum point C. has no vertex