Acompany that manufactures storage bins for grains made a drawing of a silo. the silo has a conical base, as shown below: the figure shows a silo shaped as a closed cylinder with a conical end. the diameter of the silo is 4 ft, the length of the cyl which of the following could be used to calculate the total volume of grains that can be stored in the silo? (6 points)
a. π(2ft)2(8ft) + one over three π(2ft)2(9.5ft − 8ft)
b.π(8ft)2(2ft) + one over three π(2ft)2(9.5ft − 8ft)
c.π(2ft)2(8ft) + one over three π(9.5ft − 8ft)2(2ft)
d.π(8ft)2(2ft) + one over three π(9.5ft − 8ft)2(2ft)

(co 3) the times that customers spend in a book store are normally distributed with a mean of 39.5 minutes and a standard deviation of 9.4 minutes. a random sample of 25 customers has a mean of 36.1 minutes or less. would this outcome be considered unusual, so that the store should reconsider its displays? no, the probability of this outcome at 0.035, would be considered usual, so there is no problem yes, the probability of this outcome at 0.035, would be considered unusual, so the display should be redone no the probability of this outcome at 0.359 would be considered usual, so there is no problem yes, the probability of this outcome at 0.965 would be considered unusual, so the display should be redone