Solve using the elimination method. If the system has an infinite number of solutions, use set-builder notation to write the solution set. If the system has no solution, state this. 9x - 7y = 28-7x - 5y = 20
A. (-1, -3)
B. (0, -3)
C. (0, -4)
D. No solution
Answer: C
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Test scores are normally distributed with a mean of 500. Convert the given score to a z-score, using the given standard deviation. Then find the requested percentage.Find the percentage of students who score below 635 if the standard deviation is 90.
A. 6.68% B. 90% C. 93.32% D. 56.68%
Provide an appropriate response.Use the FOIL method to find the product: (x + 6)(x + 5)
A. x2 + 30x + 30 B. x2 + x + 30 C. x2 + 11x + 30 D. x2 + 11x + 11
Write the partial fraction decomposition of the rational expression.
A. 
+ 
+ 
B. 
+ 
+ 
C. 
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D. 
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Use the table to answer the question.The table gives the average high monthly temperature (in °F) for one year in Middleville.
In what months was the average high temperature ? 42°F?
A. Jan, Feb Dec, Nov B. Jan, Feb Dec, Nov, Oct, Mar C. Mar, Apr, Sep, May, Jun, Jul, Aug D. Jan, Feb Dec, Nov, Oct