Find the absolute value of the complex number.z = 4 + 6i
A. 52
B. 2
C. 
D. 10
Answer: B
Mathematics
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An x-ray of a patient's leg is done with a current setting of 30mA for a time of 1s. If none of the distances is changed and the current is increased to 60mA, what should the exposure time be?
A. 2s B. 4s C. 0.5s D. 0.25s
Mathematics
Simplify the expression.
?
?
A. 
?
B. 
C. 
D. 
E. 
Mathematics
Use synthetic division to find the function value.f(x) = x3 + 12; find f(4 + i).
A. 52 + 48i B. 52 + 47i C. 64 + 47i D. 64 + 48i
Mathematics
Write the first four terms of the sequence.
A. -3, - 
, 1, 
B. 3, 
, 1, 
C. -3, 
, 1, 
D. 3, - 
, 1, 
Mathematics