Plot the complex number in the complex plane.6 - i 
A. 
B. 
C. 
D. 
Answer: B
Mathematics
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Solve the problem.The half-life of a certain radioactive substance is 14 years. Suppose that at time t = 0 , there are 27 g of the substance. Then after t years, the number of grams of the substance remaining will be N(t) = 27
t/28. How many grams of the substance will remain after 70 years? Round to the nearest tenth.
A. 2.4 g B. 0.6 g C. 1.2 g D. 4.8 g
Mathematics
Solve the equation exactly in the complex number system.x3 - 6x2 + x - 6 = 0
A. x = ±1, x = 6 B. x = ±6, x = i C. x = 6, x = ±i D. x = -6, x = ±i
Mathematics
Construct a pie graph, with sectors given in percent, to represent the data in the given table.
A. 
B. 
C. 
D. 
Mathematics
Solve the equation for y.6x - 4y = 9
A. y = 
, or y = 
B. y = 
, or y = 
C. y = 
, or y = 
D. y = 
, or y = 
Mathematics