Solve the problem.If there are x teams in a sports league and all the teams play each other twice, a total of N(x) games are played, where N(x) = x2 - x. A soccer league has 10 teams, each of which plays the others twice. If the league pays $46 per game for the field and officials, how much will it cost to play the entire schedule?
A. $4600
B. $5060
C. $4140
D. $4232
Answer: C
Mathematics
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Find the exact value of the expression using a sum or difference identity.cos 255°
A. 
(
- 1)
B. - 
C. - 
(
- 1)
D. 
Mathematics
Provide an appropriate response.Using your classroom, give an example of three planes that do not intersect.
What will be an ideal response?
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Identify the points in the graph for the ordered pairs. 
(-3, 4), (2, 0), (4, -5)
A. A, B, and F B. B, F, and L C. F, K, and L D. B, C, and L
Mathematics
Provide an appropriate response.A student claims that the equation tan ? + 1 = sec ? is an identity, since by letting ? = 0° we get 0 + 1 = 1, a true statement. Comment on this student's reasoning.
What will be an ideal response?
Mathematics