Computers from a particular company are found to last on average for three years without any
hardware malfunction, with a standard deviation of two months. At least what percent of the
computers last between 30 months and 42 months?
Hints:
This is a Chebyshev problem because it doesn't say anything about normal distribution.
Step 1: Make sure everything is in the same unit. I suggest months.
Step 2: Find how many standard deviations from the mean 30 and 42 are.
Step 3: Substitute into Chebyshev's Theorem to find the percentage. (Hopefully you
remember and wrote down that k represents the number of standard deviations.)

Monica build a remote control toy airplane for science project to test the plane she launched it from the top of a building the plane travel a horizontal distance of 50 feet before landing on the ground a quadratic function which models the height of the plane in feet relative to the ground at a horizontal distance of x feet from the building is shown

Gexpressions: practice question 3 of 5 jackson wants to study the popularity of his music video by tracking the number of views the video gets on his website. the expression below represents the total number of views that jackson's video receives n days after he begins tracking the nu views, where b is the rate at which the number of views changes. alb)" select the statement that would accurately describe the effect of tripling a, the initial number of views before jackson beginst the rate at which the number of views changes, b, will triple. the total number of views the video has after n days, a(b)", will not change. the total number of days since jackson begins tracking views, n, will be reduced by one-third. the total number of views the video has after n days, alb)", will triple. submit

For the quadratic function [tex]y=(x+4)^2-1[/tex] , do the following: a) rewrite the function in the standard form, b) rewrite the function in intercept form, c) find the vertex, d) find the y-intercept, e) find the x-intercepts.