Graph the values of x that satisfy the conditions given.x ? 2 or x ? 7
A. 
B. 
C. 
D. 
Answer: A
Mathematics
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Use polar coordinates to find the limit of the function as (x, y) approaches (0, 0).f(x, y) = 
A. 0 B. ? C. -1 D. 1
Mathematics
Perform the indicated operation, if possible.[-5 7 1] - [4 3]
A. [-9 4 1] B. [-9 7 -2] C. [-9 4 -2] D. Not defined
Mathematics
Solve the problem.Find the impedance Z when the voltage is V = -8 + 4j and current is I = -7j. (Z = 
)
A. 
+ 
j
B. - 
+ 
j
C. 
+ 
j
D. - 
- 
j
Mathematics
Solve using matrices.-4x - 4y - z = -48 x - 3y - 6z = -42 2x + y + z = 27
A. (9, 1, 8) B. (9, 8, 1) C. (1, 8, 9) D. (-9, 1, 18)
Mathematics