Plx>21)=0.5 or pla.70)=0.3)
4. Edith can run 10K races with a mean time of 55 minutes and standard deviation 4 minutes. The
distribution of her race times is approximately normal. What is the probability that Edith will run a
race in more than 60 minutes?

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

Need an artist designed a badge for a school club. figure abcd on the coordinate grid below shows the shape of the badge: the badge is enlarged and plotted on the coordinate grid as figure jklm with point j located at (2, -2) and point m is located at (5, 4). which of these could be the coordinates for point l? a. (2, 4) b. (8, 4) c. (5, 1) d. (5, 7)

An ant travels at a constant rate of 30cm every 2 minutes. at what speed does the ant travel per minute