Graph the equation by plotting points.-6x - 30y = 30
A. 
B. 
C. 
D. 
Answer: A
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Use the appropriate addition formula to find the exact value of the expression.sin 
A. - 
B. 
C. 
D. 
For the functions f(x) and g(x), determine the domain of (f/g)(x) (the quotient of f and g).f(x) = 13x - 5 , g(x) = 
A. 
B. 
C. {x ? x is a real number}
D. {x ? x is a real number and x ? -10}
Perform the operation and simplify, or solve the equation for the variable.
- 
A. 
B. 
C. 
D. 
Solve the problem.A computer manufacturer has three outlet stores that sell its four computer systems. The following table shows the numbers of systems sold by the three stores in July.
The prices of the systems are: $1200 for System 1, $1500 for System 2, $1600 for System 3, and $1800 for System 4. Write the information from the table as a 4 x 3 matrix B. Write a row matrix A for which the entries represent the prices for the systems. If 
find c12. What does this entry of C represent?
A. c12 = 144,000. c12 represents the sales of System 2 at all stores in July. B. c12 = 176,000. c12 represents the total sales at Store 2 in July. C. c12 = 154,000. c12 represents the total sales at Store 1 in July. D. c12 = 164,000. c12 represents the total sales at Store 3 in July.