Determine whether the statement is true or false.{..., -7, -5, -3, -1, 1, 3, 5, 7, ...} is the set of integers.

A. true
B. false


Answer: B

Mathematics

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Simplify the expression.3y(xy + y) - 9y 2(x - 2 + 5y) + 2(y 3 + y 2) 

A. - 6xy 2 + 21y 2 + 20y 3 B. - 6xy 2 + 23y 2 - 43y 3 C. 12xy 2 + 21y 2 - 43y 3 D. 6xy 2 + 21y 2 - 20y 3 E. none of these

Mathematics

Find the limit, if it exists.

A. Does not exist B. 14 C. 7 D. 1

Mathematics

Find a quadratic function that best fits the data. Give answers to the nearest hundredth.

A. y = 1.01x2 - 0.66x + 2.11 B. y = 0.53x2 + 4.68x - 2.5 C. y = 1.01x2 + 0.66x + 2.11 D. y = 0.09 + 8.33x - 6.85

Mathematics

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.-  +  =  + 

A. Commutative property of multiplication B. Associative property of multiplication C. Commutative property of addition D. Associative property of addition

Mathematics