May 25, 1:27:47 PM The amount of time a certain brand of light bulb lasts is normally distributed
with a mean of 1400 hours and a standard deviation of 50 hours. Using the
empirical rule, determine what interval of hours represents the lifespan of the
middle 68% of light bulbs.

The parabola opens: y=√x-4 (principal square root) up down right left

Graph the system of inequalities presented here on your own paper, then use your graph to answer the following questions: y < 4x − 8 y is greater than or equal to negative 5 over 2 times x plus 5 part a: describe the graph of the system, including shading and the types of lines graphed. provide a description of the solution area. (6 points) part b: is the point (5, −8) included in the solution area for the system? justify your answer mathematically. (4 points)

What is the solution for 6 - 7/8? explain the steps.