Solve the problem.Which of the lines in the picture are lines of symmetry of the given figure?
A. l
B. m and o
C. l, m, n, and o
D. l and n
Answer: D
Mathematics
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Use the Pythagorean theorem to find the length of the unknown side of the right triangle. Express your answer as a simplified radical.
A. 9
B. 9
C. 3
D. 3
Mathematics
Decide whether the statement is true or false.
= 
= 
A. True B. False
Mathematics
Find the indicated probability.A card is drawn from a well-shuffled deck of 52 cards. What is the probability of drawing an ace or a 9?
A. 10
B. 
C. 
D. 
Mathematics
Decide whether the expression is positive, negative or 0.
A. Positive B. 0 C. Negative
Mathematics