Add the given pair of complex numbers geometrically.z1 = 5i, z2 = 6
A. 11i
B. 6 - 5i
C. 5 + 6i
D. 6 + 5i
Answer: D
Mathematics
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Find the absolute value.
A. 45.4 B. 0 C. -22.7 D. 22.7
Mathematics
Solve the problem.Suppose that a radio transmission pattern can be modeled by 
for 
where the units are miles. Determine the predominant direction(s) of transmission and the distance(s) of transmission in such direction(s). Assume that the positive 
points east.
A. Northeast and southwest; 80 miles B. Northeast; 80 miles C. Northeast and southwest; 6400 miles D. North and south; 80 miles
Mathematics
Write as a decimal number rounded as indicated.
; Round to the nearest tenth.
A. 3.1 B. 0.2 C. 4.1 D. 4.14
Mathematics
Match the function to its graph.y = -cot (x + ?)
A. 
B. 
C. 
D. 
Mathematics