Acertain component is critical to the operation of an electrical system and must be replaced immediately upon failure. if the mean lifetime of this type of component is 100 hours and its standard deviation is 30 hours, how many of these components· must be in stock so that the probabil- ity that the system is in continual operation for the next 2000 hours is at least .95?

Select all the correct answers. what is 221,000,000,000,000,000,000 expressed in scientific notation?

Is the square root of 4 plus the square root of 16 rational?

The description below represents function a and the table represents function b: function a the function is 5 more than 3 times x. function b x y −1 2 0 5 1 8 which statement is correct about the slope and y-intercept of the two functions? (1 point) their slopes are equal but y-intercepts are not equal. their slopes are not equal but y-intercepts are equal. both slopes and y intercepts are equal. neither slopes nor y-intercepts are equal.