Solve the system of equations by substitution, if a solution exists.
A. x = -8, y = 0
B. x = 1, y = 7
C. x = 0, y = 8
D. No solution
Answer: C
Mathematics
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Perform the indicated operations. Round the result to the nearest thousandth if necessary.A country reports total exports of $5,569 million last year. Write this number using standard notation.
A. $5,569 B. $5,569,000 C. $5,569,000,000 D. $5,569,000,000,000
Mathematics
Convert to rectangular coordinates.
A. (6
, -6
)
B. (-6
, -6
)
C. (6
, 6
)
D. (-6
, 6
)
Mathematics
Evaluate 
for
?
?
A. 81 B. 4 C. 5 D. 3 E. 6
Mathematics
Classify the angle.W
A. Straight B. Right C. Acute D. Obtuse
Mathematics