Simplify. Write your answers in the form of a+bi, where a and b are real numbers.2i(4 - 5i)
A. - 8i - 10i2
B. 8i - 10
C. 10 + 8i
D. 8i + 10i2
Answer: C
Mathematics
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Graph the polar equation.r = 
A. 
B. 
C. 
D. 
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Identify all values for which the expression is undefined.
A. -3, 2
B. -4, 3
C. - 
, 3
D. 
, -3
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Rationalize the denominator.
A. 
B. 
C. 
D. 
Mathematics
Use the roster method to write the given set of numbers. Interpret "between a and b to include both a and b."The first three natural numbers.
A. {0, 1, 2, 3} B. {0, 1, 2} C. {1, 2, 3} D. {0, 2, 4}
Mathematics