Provide an appropriate response.True or false? i3 = -i
A. True
B. False
Answer: A
Mathematics
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Find the center of mass of a thin plate covering the given region with the given density function.The triangular region cut from the first quadrant by the line y = -x + 1, with density ?(x) = x
A. 
= 
, 
= 
B. 
= 
, 
= 
C. 
= 
, 
= 
D. 
= 
, 
= 
Mathematics
Provide an appropriate response.If n is even, under what condition is 
negative?
A. When a is negative B. Never C. When a is positive D. When a is zero
Mathematics
Solve the problem.When Milo got promoted at work, he received a 10% pay raise. He now earns 
per year. What was his annual salary before his raise?
A. $52,000 B. $5200 C. $57,200 D. $5720
Mathematics
Find the range of the function.f(x) = x2 - 14x + 51
A. (-?, 7] B. [7, ?) C. [2, ?) D. (-?, 0]
Mathematics