He standard deviation of the lifetimes of a sample of 200 electric light bulbs was computed to be 150 hours. find (a) 95% and (b) 99% confidence intervals for the standard deviation of all such light bulb

Pete is making decorations for a dinner party. the instructions tell him to use 9 flowers for a medium-sized decoration. complete each statement to adjust the flowers for different-sized decorations based on these instructions.

In exponential growth functions, the base of the exponent must be greater than 1,how would the function change if the base of the exponent were 1? how would the fiction change if the base of the exponent were between 0and 1

Find the center and the radius of the circle with the equation: x^2-2x+y^2+4y+1=0?