Simplify the expression.j11
A. j
B. 1
C. -1
D. -j
Answer: D
Mathematics
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Determine the domain of the function. Express your answer in interval notation.f(x) = 
A. (-?, ?) B. (-?, 4) C. [4, ?) D. (-?, -4)
Mathematics
Find the equation of the line that has the given slope and passes through the given point.m = 
, (4, 8)
A. y = - 
x - 
B. y = - 
x + 
C. y = 
x + 
D. y = 
x - 
Mathematics
Graph the system of inequalities, and find the coordinates of the vertices.3x + 2y ? -6 x - 1 ? 0
A. 
B. 
C. 
D. 
Mathematics
Find the circle's circumference or area, as requested. Use 3.14 as the approximate value of ?, and round your answer to the nearest tenth.Find the circumference.
A. 113.0 cm B. 18.8 cm C. 37.7 cm D. 7.6 cm
Mathematics