Plot the ordered pairs on the rectangular coordinate system provided.A(2, 2), B(-1, 6)
A. 
B. 
C. 
D. 
Answer: A
Mathematics
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Determine whether the given point is in the solution set to the given system.(2, 8, -3)3x - 4y - 2z = -204x + y - z = 19 x - 2y + 3z = -23
A. No B. Yes
Mathematics
Solve.
+ 
= 1
+ 
= 1
A. (-i
, -2i
), (-i
, 2i
), (i
, -2i
), (i
, 2i
)
B. (-i
, 2i
), (i
, 2i
)
C. (-i
, -4), (-i
, 4), (i
, -4), (i
, 4)
D. (-i
, 4), (i
, 4)
Mathematics
Solve the problem.Paul has grades of 80 and 90 on his first two tests. What must he score on his third test in order to have an average of at least 90?
A. at least 85 B. at most 87 C. at most 90 D. at least 100
Mathematics
Decide whether the proportion is true or false.
= 
A. True B. False
Mathematics