Find the product of the complex number and its conjugate.4 - 2i
A. 2
B. 6
C. 2i
D. 20
Answer: D
Mathematics
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Answer the question.A box contains 5 red, 7 orange, 6 black, 8 green, and 4 blue marbles. Without looking, Martha reaches in the box for marbles. How many marbles must Martha take from the box to be sure that at least two marbles are the same color?
A. 6 marbles B. 7 marbles C. 5 marbles D. 10 marbles
Mathematics
Perform the indicated operation.- 
÷ 
A. 
B. - 
C. - 
D. 
Mathematics
Use a proportion to solve the problem.The 14th hole at the Riverwoods Golf Course is 300 yards long. How long would it be on a model with a scale of 1.5 inches to 100 yards?
A. 2.25 in. B. 150 in. C. 4.5 in. D. 45 in.
Mathematics
Solve the equation.
- 
= 
A. 
B. 
C. 
D. 
Mathematics