Factor completely. State that the polynomial is prime if it cannot be factored.x2 - 13xy + 42y2
A. (x + 7y)(x - 6y)
B. prime
C. (x - 42y)(x - y)
D. (x - 7y)(x - 6y)
Answer: D
Mathematics
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Solve the equation.x2 - x = 72
A. {1, 72} B. {-8, 9} C. {8, 9} D. {-8, -9}
Mathematics
Solve. Round to the nearest tenth when necessary.Jack and Jill are planning a new kitchen. The old kitchen measured 11 feet by 20 feet. The new kitchen is similar in shape, but the longest dimension is 28 feet. What is the smaller dimension of the new kitchen?
A. 50.9 ft B. 7.9 ft C. 15.4 ft D. 6160 ft
Mathematics
Solve the equation.5x2 - 16x = 16
A. 4 or ? 
B. 0 or ? 
C. 1 or ? 
D. 
or ?4
Mathematics
Use graphical methods to find any turning points of the graph of the function.y = 
A. 
and 
B. 
and 
C. (0, 3) and 
D. No turning points
Mathematics