Factor the four-term polynomial by grouping.5x - 35 + xy - 7y
A. (x - 7)(5 + y)
B. (x - 7y)(5 + y)
C. (y - 7)(x + 5)
D. (y - 7)(5x + y)
Answer: A
Mathematics
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-10
A. 3x - y = 9 5x + y = 7 B. 5x + y = 7 x + 2y = -1 C. 4x - y = -16 3x + y = -5 D. x + y = 1 x - 3y = -9
Mathematics
Evaluate the expression without a calculator.log8(32)
A. 
B. 
C. 
D. 
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Solve the problem.The shadow cast by an object on a sunny day varies directly as the height of the object. If a person 56 inches tall casts a shadow 65 inches long, how tall is a tree which casts a shadow 44 feet in length?
A. 37.91 ft B. 60.5 ft C. 51.07 ft D. 82.73 ft
Mathematics
Rewrite the sum using sigma notation.1 + 
+ 
+ 
+ 
+ ...
A. 
B. 
C. 
D. 
Mathematics