Perform the indicated operation. Write the result in standard form.(7 - 5i)(4 + 4i)
A. -20i2 + 8i + 28
B. 48 - 8i
C. 8 - 48i
D. 48 + 8i
Answer: D
Mathematics
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Convert the units.619 g = 
mg
A. 0.619 mg B. 0.0619 mg C. 61,900 mg D. 619,000 mg
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Multiply by a fraction equivalent to 1 to build up the fraction to one with the denominator shown.
= 
A. 
B. 
C. 
D. 
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Combine like terms.-7y2 + 7y2
A. -7y4 B. -6y2 C. 0 D. 1
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