Solve the equation.log5 (x2 - 4x) = 1
A. {5}
B. {5, -1}
C. {1}
D. {-5, 1}
Answer: B
Mathematics
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Perform the indicated operations and simplify the result. Leave the answer in factored form.
? 
A. 
B. 
C. 
D. 
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Solve the problem.A painter leans a ladder against one wall of a house. At what height does the ladder touch the wall? Round to one decimal place if needed.
A. 100 ft B. 25 ft C. 7.05 ft D. 14.1 ft
Mathematics
Find an equation for the ellipse described.Foci at (0, ±2); y-intercepts are ±7
A. 
+ 
= 1
B. 
+ 
= 1
C. 
+ 
= 1
D. 
+ 
= 1
Mathematics
Use the variable expressions and the Pythagorean theorem and solve for x. Sides are listed smallest to largest. Round your answer to 1 decimal place.
Mathematics