Let the vertices of 
be the points M(0,0), N(a,0), P(
), and Q(b,c). Which equation must hold true if the diagonals of 
are perpendicular?
A. 
B. 
C. 
D. 
Answer: C
Mathematics
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Use a calculator to verify the value found by using the double-angle formulas.Find cos 150° directly and by using functions of 75°.
A. 0.2588 B. 0.5176 C. 0.6993 D. -0.866
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Find the derivative.f(x) = 
5
A. 
4? 
B. 
4? 
C. 
4
D. 
4
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Identify the figure and denote it by its appropriate symbol.
A. Ray, 
B. Line Segment, 
C. Half Open Line Segment, 
D. Half Open Line, 
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Solve the problem.Suppose it costs $6.00 to roll a pair of dice. You get paid the larger number in dollars that appears on the dice unless you roll a double in which case you get paid the sum in dollars. What is the expected value of the game? Is it a fair game?
A. $11.06; yes B. -$11.06; no C. -$0.94; no D. $0.94; yes
Mathematics