Perform the indicated operation.
- 
A. 
B. 
C. 
D. 
Answer: C
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Solve the problem.The daily profit for a product is given by P = 36x - 0.02x2 - 1600, where x is the number of units produced and sold.a. Graph this function for x between 0 and 2100.b. Describe what happens to the profit of this product when the number of units produced is between 1 and 900. What happens after 900 units are produced? c. Is the graph of this function concave up or down?
A. a. 
b. The profit increases.; The profit decreases.
c. The graph is concave up.
B.
a.
b. The profit decreases.; The profit increases.
c. The graph is concave up.
C. a.
b. The profit decreases.; The profit increases.
c. The graph is concave down.
D. a.
b. The profit increases.; The profit decreases.
c. The graph is concave down.
Perform the indicated operations and simplify the result. Leave the answer in factored form.
A. 
B. 
C. 
D. 
Multiply. Assume all variables represent nonnegative real numbers.
? 
A. x6z8
B. x7z9
C. x6z8
D. x7z8
Determine whether the ordered pair is a solution of the inequality.(-1, -2); x + 0 ? y > 4
A. No B. Yes