Tabulate and plot enough points to sketch a rough graph of the equation.r = 2 + 2 cos ? 
A. 
B. 
C. 
D. 
Answer: A
Mathematics
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Convert the numeral to Hindu-Arabic form.
A. 542,419 B. 542,199 C. 531,379 D. 542,179
Mathematics
Solve the system of equations by Gaussian elimination. If there is an unlimited number of solutions, find two of them.3x + y + z = 1512x + 4y + 4z = 60
A. x = 0, y = 15, z = 0 B. Unlimited: x = 0, y = 15, z = 0; x = 5, y = 0, z = 0 C. Inconsistent D. x = 5, y = 0, z = 0
Mathematics
Simplify the expression. Assume that all variables are positive.
? 
A. 
a2
B. 
C. 
a2
D. 5a
Mathematics
Graph the compound inequality.4x < y + 2 or y < -2
A. 
B. 
C. 
D. 
Mathematics