The figure below is a regular hexagon ABCDEF with center O. (P, Q, R, S, T, and U are the midpoints of the sides.)
Which of the following reflections is not a symmetry of the regular hexagon?
A. the reflection with axis the line passing through A and D
B. the reflection with axis the line passing through P and Q
C. the reflection with axis the line passing through R and S
D. the reflection with axis the line passing through A and B
E. all of these are symmetries of the regular hexagon.
Answer: D
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Find an equation for the line that passes through the given point and satisfies the given conditions.P = (9, 9); perpendicular to v = 2i + 4j
A. y - 9 = 
(x - 2)
B. 2x + 4y = 54
C. 4x - 2y = 18
D. 2x + 4y = 20
Answer the question.What values of n will make xn a perfect square?
A. n must be odd. B. n must be even. C. n must be a multiple of 5. D. n must be a power of 3.
Solve.The monthly payment p on a mortgage varies directly with the amount borrowed b. Suppose that you decide to borrow $120,000 using a 30-year mortgage. You are told that your monthly payment is $728.27. The linear function that relates the monthly payment p to the amount borrowed b for a mortgage with the same terms is 
Graph the relation between monthly payment and amount borrowed. 
A. 
B. 
C. 
D. 
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of 40% antifreeze. The radiator now contains 
of 20% antifreeze. How many liters of this solution must be drained and replaced with 100% antifreeze to get the desired strength?
A. 16 L B. 20 L C. 10.0 L D. 13.3 L