The amount of time a certain brand of light bulb lasts is normally distribued with a mean of 1200 hours and a standard deviation of 100 hours. Using the empirical rule,
what percentage of light bulbs last between 1100 hours and 1300 hours?

f(x) = y

f(-3) = -5

step-by-step explanation:

correct choice is b

step-by-step explanation:

when you calculate the average rate of change of a function, you are finding the slope of the secant line between the two points. for the function the average rate of change from point to point can be calculated as

to find the average rate of change from day 2 to day 10, note that at day 2, 8 houses were sold, so a(2,8) and at day 10, 2 houses were sold, so b(10,2). thus,

98%

step-by-step explanation: