A construction project has four separate components that must be completed in order. The expected values and standard deviations of the completion times of the activities are listed below. Assuming that the four activities are independent, determine the expected value and standard deviation of the completion time of the project. Activity Expected Completion Time (Days) std. Dev.
1 17 6
2 12 3
3 26 4
4 7 2

Expected value of completion time of project =
Standard deviation of completion time of project =

yes   because as the functions are graphed they eventually will intersect unless otherwise

step-by-step explanation:

diagonal is     or     16.97

step-by-step explanation:

from pythagorian theorem we know,

if a is perpendicular, b is base and c is hypotenuse,

then we get

now, for a square,

perpendicular and base are equal,

since all the sides of a square are equal.

so, we get,

this is the special version of pythagorian theorem for a square.

so, if the diagonal is d and length is 12 , then we get

by square rooting we get,