Simplify the expression. Write the result using positive exponents only.
A. 
B. 
C. 
D. 
Answer: C
Mathematics
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Refer to the given figure, an isosceles triangle with AB = AC.
If ?A measures 146° find the measure of ?B.
A. 12° B. 107° C. 34° D. 17°
Mathematics
Solve the system mentally, without the use of a calculator or pencil-and-paper calculation. Try to visualize the graphs of both lines.x + 0y = 90x + y = 4
A. x = 9; y = 4
B. x = 4; y = 9
C. x = 9; y = 2
D. x = 2; y = 
Mathematics
Graph the system of inequalities.y > 4x ? -2
A. 
B. 
C. 
D. 
Mathematics
Simplify by combining pairs of like terms.16z - 6y - 19z - 2y
A. -3z - 4y B. -3z - 8y C. 3z - 4y D. 3z - 8y
Mathematics