An average of m=786 per meal with a=85 for n=100 children and adolescents before the labeling, compared to an average m=772 of with s=91 for a similar sample of n=100 after the mandatory posting. use a two-tailed test with alpha=.05 to determine whether the mean number of calories after the posting is significantly different than before calorie content was posted.

The center of a circle represent by the equation (x+9)^2+(y-6)^2=10^2 (-9,6), (-6,9), (6,-9) ,(9,-6)

The manufacturer of a new product developed the following expression to predict the monthly profit, in thousands of dollars, from sales of the productwhen it is sold at a unit price of x dollars.-0.5x^2 + 22x - 224what is represented by the zero(s) of the expression? a.the profit when the unit price is equal to 0b.the unit price(s) when the profit is equal to 0c.the profit when the unit price is greatestd.the unit price(s) when profit is greatest

1: 4 if the wew 35 surfboards at the beach how many were short boards?