Determine the number that should be added to complete the square of the expression. Then factor the expression.x2 + 10x
A. 5; (x + 5)2
B. -5; (x + 5)2
C. 25; (x + 5)2
D. 25; (x - 5)2
Answer: C
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Solve the problem using the information given in the table and the weighted-average inventory method. Round to the nearest cent.Calculate the cost of goods sold. 
A. $10,206.53 B. $2053.57 C. $4076.48 D. $6130.05
Solve the problem.A furniture manufacturer decides to make a new line of desks. The table shows the profit, in thousands of dollars, for various levels of production. 
Find a quadratic function to model the data, and use the model to predict the profit if 450 desks are made. Round to the nearest thousand.
A. $40,000 B. $45,000 C. $42,000 D. $44,000
Establish the identity.
= tan(2?)
What will be an ideal response?
The Leslie matrix for a population of birds is 
The population vector for year 1 is 
(a) Estimate the population vector for year 2. 20. (b) Estimate the population vector for year 3.