Find the absolute value of the complex number.z = 5i
A. 5
B. 25
C. -5
D. 5i
Answer: A
Mathematics
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Solve the problem.The price P of a certain computer system decreases immediately after its introduction and then increases. If the price P is estimated by the formula P = 130t2 - 2500t + 6500, where t is the time in months from its introduction, find the time until the minimum price is reached.
A. 19.2 months B. 38.5 months C. 9.6 months D. 12.5 months
Mathematics
Write the rational expression in lowest terms.
A. 
B. 
C. 
D. 
Mathematics
Find all solutions of the equation. Express the solution in radians.cos x = 
A. 
+ 2n? or 
+ 2n?
B. 
+ 2n? or 
+ 2n?
C. 
+ 2n? or 
+ 2n?
D. 
+ 2n? or 
+ 2n?
Mathematics
Given matrices A = 
, B = 
, and C = 
, decide if the statement is true or false.A(B + C) = AB + AC
A. True B. False
Mathematics