The function Y2 is defined as Y1 + k for some real number k. Based upon the given information about Y1 and Y2, find k.
A. -4
B. 4
C. -5
D. 5
Answer: B
Mathematics
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Solve the problem.The gravitational force (in lb) of attraction between two objects is given by 
where x is the distance between the objects. If the objects are 5 ft apart, find the work required to separate them until they are 50 ft apart. Express the result in terms of k.
A. 
k
B. 
k
C. 
k
D. 
k
Mathematics
Solve the equation.-7(9 + x) = -21
A. {-30} B. {-12} C. {-6} D. {12}
Mathematics
Solve the equation by completing the square.x2 - 8x + 20 = 0
A. 4 ± 2i B. 6, 2 C. 8 ± 4i D. -4 ± 2i
Mathematics
Multiply vertically.(x + 4)(x2 - 4x + 16)
A. x3 - 8x2 - 8x + 64 B. x3 + 64 C. x3 + 8x2 + 8x + 64 D. x3 - 64
Mathematics