Choose the statement that describes a way to solve the equation x – 23 = 18. 1. Subtract 23 from both sides of the equation.

2. Subtract 18 from both sides of the equation.

3. Divide both sides of the equation by 23.

4. Add 23 to both sides of the equation.

Find the roots of the equation below. x^2 - 6 + 9 = 0

The position of a moving particle is given by the position function: f(t)=-9t-t^2-0.2t^3+0.1t^4 a. at what time does the particle reverse direction? b. when is the displacement positive? (round one decimal place and answer in interval notation) c. when is the displacement negative? (round one decimal place and answer in interval notation) d. when is the particle’s acceleration positive? (round one decimal place and answer in interval notation) e. when is the particle’s acceleration negative? (round one decimal place and answer in interval notation)

Using elimination, what is -4x+2y=-12 4x+8y=-24