Determine the period of the function.Period of y = 3 cos (4?x + 2?)
A. 
B. 4?
C. 
D. 2
Answer: A
Mathematics
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Perform the desired operation. Write the answer in the form a + bi.(-4 + 8i)(4 + i)
A. -24 + 28i B. -24 - 36i C. -8 + 28i D. -8 - 36i
Mathematics
Find the LCD of the given rational expressions.
; 8
A. 7x + 4 B. 24 C. 7x D. 56x + 32
Mathematics
Graph the rational function.f(x) = 
A. 
B. 
C. 
D. 
Mathematics
Add.89.65 + 84.42 + 11.868
A. 185.938 B. 185.948 C. 186.038 D. 186.938
Mathematics