Unit Test — Unit test Answers

Which number line represents the solution set for the inequality 3x < –9?

Consider the equation v + 4 + v = 8. What is the resulting equation after the first step in the solution?

The formula for the area of a triangle is , where b is the length of the base and h is the height.Find the height of a triangle that has an area of 30 square units and a base measuring 12 units.

What value of x is in the solution set of the inequality –2(3x + 2) > –8x + 6?

The sum of the interior angles, s, in an n-sided polygon can be determined using the formula s=180(n−2), where n is the number of sides.Using this formula, how many sides does a polygon have if the sum of the interior angles is 1,260°? Round to the nearest whole number.

Bianca wrote the steps for her solution to the equation 2.3 + 8(1.3x – 4.75) = 629.9. She left out the description for the last step.What is the missing step of her solution?

Solve the inequality.2(4+2x)≥5x+5

Solve the equation.2x − 3 + 4x = 21

Sara wants to find the input value that produces the same output for the functions represented by the tables.

What is the value of p in the linear equation ?

The solution is n = –2 verified as a solution to the equation 1.4n + 2 = 2n + 3.2. What is the last line of the justification?

What is the solution to –4(8 – 3x) ≥ 6x – 8?

Solve the equation.–x + 8 + 3x = x – 6

What interval includes all possible values of x, where –3(6 – 2x) ≥ 4x + 12?

The amount of potential energy, P, an object has is equal to the product of its mass, m, its height off the ground, h, and the gravitational constant, g. This can be modeled by the equation P = mgh.