Algebra 2 Unit 2

Which of the following statements are true of literal equations? 1: They consist primarily of variables. 2: They are often called formulas. 3: They mostly use words. 4: They often describe real-world relationships. 5: They are hardly ever used.

1 2 4

The Rational numbers include which of the following? 1: positive integers 2: all square roots 3: negative integers 4: fractions 5: π

1 3 4

|x| = x 1: always 2: sometimes 3: never

2

An algebraic sentence that makes use of the "less than" or "greater than" symbols (<, >) is called an inequality. T/F

true

Equations with parentheses may require the use of the distributive property to be solve. T/F

true

Mathematical problem solving skills can be important in everyday life. T/F

true

Mathematical sentences can be combined with or or and to make compound sentences. T/F

true

Subtraction and division are derived from addition and multiplication. T/F

true

If d = rt, which of the following equations is correct? a. r = d/t b. t = dr c. t =d/r d. r = dt e. d = t/r

a c

Which of the following are steps in practical problem solving? a. Assign an identifying variable to the quantity to be found. b. Make a guess at the value of the variable. c. Write a sentence stating conditions placed on the quantity. d. Check if the value is correct. e. Solve the sentence for the variable.

a c e