2 sin2 (π/2 sin2x)=1+cos(π×cos2x)

The number of potato chips in a bag is normally distributed with a mean of 71 and a standard deviation of 2. approximately what percent of bags contain between 69 and 73 potato chips? approximately 68% approximately 71% approximately 95% approximately 99.7%

Aflute is on sale for 20% off. including the discount and 8% tax, the sales price is $216.

Tcan be concluded that % of the seniors would prefer to see more candid pictures in this year's edition of the yearbook.