0. Review of College Algebra

In Exercises 21–28, divide and express the result in standard form.

3 / 4+i

In Exercises 21–28, divide and express the result in standard form.

2+3i / 2+i

In Exercises 29–36, simplify and write the result in standard form.

√−196

In Exercises 29–36, simplify and write the result in standard form.

√3² − 4 ⋅ 2 ⋅ 5

CONCEPT PREVIEW Fill in the blank(s) to correctly complete each sentence. The set {0, 1, 2, 3, ...} describes the set of _________.

Use a number line to determine whether each statement is true or false. See Example 6. -6 < -1

Use a number line to determine whether each statement is true or false. -4 > -3

Use a number line to determine whether each statement is true or false. 3 > -2

Use a number line to determine whether each statement is true or false. -3 > -3

Rewrite each statement with > so that it uses < instead. Rewrite each statement with < so that it uses >. -5 > -100

Use an inequality symbol to write each statement. 7 is greather than -1.

Use an inequality symbol to write each statement. 13 - 3 is less than or equal to 10.

Use an inequality symbol to write each statement. 5 + 0 is not equal to 0.

Simplify each inequality if needed. Then determine whether the statement is true or false. 0 ≤ -5

Simplify each inequality if needed. Then determine whether the statement is true or false. 7 ≤ 7