Algebra 2 Chapter 1 Quiz 1 | BJU Algebra

Simplify 5x(2x + 4) - 2(4x - 9).

10x^2 + 12x + 18

Which of the following are rational numbers? Select all that apply.

-3.2; 3.02777; sqr4;

Simplify 6 ÷ 2 · 3 - 6^2 ÷ 2^2 - 3^2.

-9

Make a chart and solve the following. How many pounds of peanuts costing $1.75/lb should be mixed with raisins costing $2.50/lb to make 3 lb of a mixture that costs $2.00/lb?

2.0 lb

How many terms does 3xy^2 + 4x + 4y have?

3

Make a chart and solve the following. Two trains leave at the same time from stations that are 480 mi apart and travel toward each other on parallel tracks. If the eastbound train travels 10 mi/hr slower than the westbound train and they pass each other 6 hours later, how fast is the westbound train traveling?

45 mi/hr

State the degree and classification of the following polynomial. 3xy3 + 9xy2z2 + 3

5, trinomial

Name the property illustrated by the following equation. 3x + (2y + x) = 3x + (x + 2y).

Commutative Property of Addition

Which property of equality is demonstrated by the following statement? If 3x - 7/4 = 2, then 3x - 7 = 8

Multiplication

Solve cx + d = ex + f for x.

f - d/ c - e

Choose the operation under which the set of irrational numbers is closed.

none of the above.

Solve 5x - 8 - 3(x + 4) = -36.

x = −8