The lifetime, in years, of a certain type of pump is a random variable with probability density function what is the probability that a pump lasts more than two years? what is the probability that a pump lasts between two and four years? find the mean lifetime. find the variance of the lifetimes. find the cumulative distribution function of the lifetime. find the median lifetime. find the 60th percentile of the lifetimes.

8000 + 8800 + 8000 + 8 million + 80 trillion + another a katrillion equals

The table shows the relationship between the number of cups of cereal and the number of cups of raisins in a cereal bar recipe: number of cups of cereal number of cups of raisins 8 2 12 3 16 4 molly plotted an equivalent ratio as shown on the grid below: a graph is shown. the title of the graph is cereal bars. the horizontal axis label is cereal in cups. the x-axis values are 0, 20, 40, 60, 80,100. the vertical axis label is raisins in cups. the y-axis values are 0, 10, 20, 30, 40, 50. a point is plotted on the ordered pair 40,20. which of these explains why the point molly plotted is incorrect? (a) if the number of cups of cereal is 40, then the number of cups of raisins will be10. (b)if the number of cups of raisins is 40, then the number of cups of cereal will be10. (c) if the number of cups of cereal is 40, then the number of cups of raisins will be 80. (d) if the number of cups of raisins is 40, then the number of cups of cereal will be 80.

If f(x) = x+8 and g(x) = 4x- 3, find (f+g)(x)