Multiply and write the result in standard form.(-7 + 2i)(-7 - 2i)
A. 53
B. 49 - 4i2
C. 45
D. 49 + 4i2
Answer: A
Mathematics
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Find the number of subsets of the set.{1, 2, 3, ..., 9}
A. 1024 B. 508 C. 512 D. 16
Mathematics
Simplify.
A. 
B. 
C. 
D. 
Mathematics
Provide an appropriate response.Solve the inequality: 3x - 7 ? 2 or x + 4 ? 3
A. -3 ? x ? 1 B. -1 ? x ? 3 C. x ? -1 or x ? 3 D. x ? -3 or x ? 1
Mathematics
Make the indicated temperature conversion. Round answers to one decimal place if necessary.Convert 17°F to Celsius.
A. -8.3°C B. 22.6°C C. 1.4°C D. 62.6°C
Mathematics