Algebra II 2014 - MA3111 A-CR Real Numbers

Which expression illustrates the associative property of addition?

(3 + 19) - 12 = 3 + (19 - 12)

Which number best represents the location of the point on the line?(slide 3)

-11/3

Choose the expression that represents "the product of a number and five is two less than the number."

5x=x-2

Choose the expression that represents "three less than seven times a number."

7x-3

Complete the statement below.The --property can be used to remove the parentheses in the expression 1.7(x + 9).

distributive

Write the expression - 5x(4 + 3x) using words.

the product of negative five times a number and the quantity four plus three times the number

Write the expression 3x + 4 using words. Choose the correct phrase below.

the sum of three times a number and four

Choose all true statements.

-Some rational numbers are natural numbers. -All whole numbers are integers. -Some integers are natural numbers.

Choose all the sets containing the number PI

-irrational numbers -real numbers

Choose all the sets containing the number -1.576.

-rational numbers -real numbers

Use the real number line shown below to complete each statement. 1. The letter -- best represents −0.1525 2. The letter -- best represents 9/5 3. The letter-- best represents −1/5

1. b 2. f 3. a

Complete the statement below.The expression -- illustrates the commutative property of multiplication.

11 x w x 3=11 x 3 x w

Write the expression "the sum of seven times a number and five, divided by the sum of negative two times the number and eleven" using algebra. Choose the correct phrase below.

(7x + 5) ÷ (-2x + 11)

Under what operations are the set of integers closed? Explain your answer.

Integers are closed under addition, subtraction, and multiplication.Integers are not closed under division, For example, 1 divided by 3 is not an integer.