Rationalize the denominator. Assume all variables represent positive real numbers.
A. 109
B. 
C. 9
D. 
Answer: B
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Solve the problem.You have 84 feet of fencing to enclose a rectangular plot that borders on a river. If you do not fence the side along the river, find the length and width of the plot that will maximize the area.
A. length: 21 ft, width: 21 ft B. length: 63 ft, width: 21 ft C. length: 42 ft, width: 21 ft D. length: 42 ft, width: 42 ft
Factor completely.200x6y - 320x3y3 + 128y5
A. 8y(5x3 - 4y2)2 B. 8y(5x3 + 4y2)(5x3 - 4y2) C. y(40x3 - 32y2)(5x3 - 4y2) D. 8(5x3y - 4y2)2
Fill in the digits for the given place values in the following whole number.5,399,711hundred thousands tens
A. Hundred thousands 9, tens 7 B. Hundred thousands 5, tens 1 C. Hundred thousands 3, tens 1 D. Hundred thousands 3, tens 9
Indicate whether the equation illustrates the commutative property of addition, commutative property of multiplication, associative property of addition, associative property of multiplication, or the distributive property.-10(nm) = (-10n)m
A. Distributive property B. Commutative property of multiplication C. Associative property of addition D. Associative property of multiplication