Find the absolute value of the complex number 1 + 2i.
a. 
b. 
c. 5
d. 
e. 
e.
Mathematics
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Find the indicated quantity.Find the radius of gyration with respect to its axis of the volume generated by revolving the region bounded by 
and the 
about the 
A. 
B. 
C. 
D. 
Mathematics
Evaluate the function.Find f(-x) when f(x) = 3x2 - 2x + 5
A. -3x2 + 2x - 5 B. 3x2 + 2x - 5 C. -3x2 + 2x + 5 D. 3x2 + 2x + 5
Mathematics
Write the interval as an inequality involving x, and illustrate the inequality using the real number line.[-7, 4]
A. -7 ? x < 4
B. -7 ? x ? 4
C. -7 < x ? 4
D. -7 < x < 4
Mathematics
Identify and graph the polar equation.r = 2 + 2 sin ?
A. cardioid
B. cardioid
C. cardioid
D. cardioid
Mathematics