Evaluate the expression using the given values.
x = 9, y = 6
A. 2
B. 7
C. 23
D. 
Answer: B
Mathematics
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Solve the problem.If 
is a convergent series of nonnegative terms, what can be said about 
, where k is a positive integer?
A. Always diverges B. May converge or diverge C. Always converges
Mathematics
Factor the trinomial or state that the trinomial is irreducible.x2 - x - 45
A. (x + 5)(x - 9) B. (x - 5)(x + 9) C. (x - 45)(x + 1) D. irreducible
Mathematics
Solve the problem.The gravitational attraction A between two masses varies inversely as the square of the distance between them. If the force of attraction is 2.25 lb when the masses are 4 ft apart, what is the attraction when the masses are 6 ft apart?
A. 1 lb B. 3 lb C. 2 lb D. 4 lb
Mathematics
Solve and graph the inequality. Give answer in interval notation.
- 
? 
+ 3
A. 
B. 
C. 
D. 
Mathematics