Solve the problem.Which of the lines in the picture are lines of symmetry of the given figure?
A. q, r, s and t
B. r and t
C. q and s
D. Only r
Answer: B
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Use the order of operations agreement to simplify the given expression.
2 ÷ 
A. 
B. 
C. 
D. 
Solve the problem.A formula relating an athlete's vertical leap V, in inches, to hang time t, in seconds, is V(t)= 48t2. A professional basketball player has a vertical leap of 38 inches. What is his hang time? Round your answer to the nearest tenth of a second.
A. 0.8 sec B. 0.9 sec C. 0.6 sec D. 1 sec
Use matrices to solve the system of equations (if possible). Use Gaussian elimination with back-substitution or Gauss-Jordan elimination.
A) x = –4, y = –2, z = 5
B) x = –2, y = 4, z = –5
C) no solution
D) x = –4, y = 2, z = 5
E) x = 4, y = 2, z = 5
Solve the system.
A. (2, 3) B. (2, 4) C. dependent (many solutions) D. inconsistent (no solution)