Algebra final exam

Fifteen questions on all of Algebra. Answer all 15 to see your score. Questions are drawn from a bank of 45, so every attempt is different.

0 of 15 answered

Question 1 of 15

Which number is rational?

Simplify 2(3x - 4) - (x + 1).

Simplify (3x^2 y)^2 / (9x^5).

Light takes about how long to travel 1.5 x 10^11 m at 3 x 10^8 m/s?

What is 16^(-1/2)?

Solve 3(x - 2) = 2(x + 1).

You scored 72, 85, 90, 78 and need an average of at least 80 over five tests. Minimum fifth score?

Solve |x - 2| = 3.

A thermostat keeps a room within 1.5 C of 21 C. Which temperatures are allowed?

What is the equation of a circle with centre (0, 0) and radius 4?

A vertical line has slope:

A gym charges $130 after 3 months and $280 after 8 months. What is the joining fee?

Lines with slopes 3 and -1/3 are:

Solve 2x + 3y = 12 and 5x - 2y = 11.

A business has C = 2000 + 15x and R = 40x. Profit begins after how many items?