Find the product of the complex number and its conjugate.-2 + 7i
A. 54
B. 56
C. -45
D. 53
Answer: D
Mathematics
You might also like to view...
Solve the problem.Find the centroid of the region in the first quadrant bounded by the curve y = 11 cos x and the axes.
A. 
= 
, 
= 
B. 
= 
, 
= 
C. 
= 
, 
= 
D. 
= 
, 
= 
Mathematics
Divide.85.63 ÷ 10
A. 856.3 B. 8.563 C. 0.08563 D. 8563
Mathematics
Write the number in words.235,060
A. Two hundred thirty-five thousand, sixty B. Twenty-three thousand, five hundred sixty C. Two million, thirty-five thousand, sixty D. Twenty-three thousand, five hundred six
Mathematics
Solve the problem.Consider the rational inequality 
> 0. Without doing any work, give the solution set. (Hint: determine the sign of the numerator and denominator.)
A. ? B. (-?, ?) C. (-9, ?) D. (-?, -8)
Mathematics