Provide an appropriate response.Express in terms of i and simplify: 
.
A. 5
B. 3i
C. 5i
D. -5i
Answer: C
Mathematics
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Find the sum of the series as a function of x.
A. 
B. 
C. - 
D. - 
Mathematics
Solve the formula for the specified variable.a + b = s + r for r
A. r = s(a + b)
B. r = 
C. r = a + b - s
D. r = 
+ b
Mathematics
Solve using Cramer's rule, if possible. If it is not possible, state whether the system is inconsistent or has infinitely many solutions.
A. (7, 1) B. (1, 7) C. (-7, -1) D. (-1, 7)
Mathematics
Perform the multiplication.
A. 0.1938 B. 0.001938 C. 0.01938 D. 0.0001938
Mathematics