Anumber increased by negative eight is equal to fourteen. which equation could be used to find the number?

n + 8 = 14
n - (-8) = 14
n + (-8) = 14
8 - n = 14

What is the measure of angle z in this figure? enter your answer in the box. z = ° two intersection lines. all four angles formed by the intersecting lines are labeled. clockwise, the angles are labeled 43 degrees, x degrees, y degrees, and z degrees.

Find the vertex of the function given below y=x^2-6x+1

Monitors manufactured by tsi electronics have life spans that have a normal distribution with a standard deviation of 1800 hours and a mean life span of 20,000 hours. if a monitor is selected at random, find the probability that the life span of the monitor will be more than 17,659 hours. round your answer to four decimal places.