A race walker completed a 7.7 mile walk in 2.2 hours. What is the walker's speed?

Use the inverse of the function y=x^2-18x to find the unknown value [tex]y = \sqrt{bx + c \: + d} [/tex]

5,600 x 10^3 = a) 560 b) 5,000,600 c) 5,600,000 d) 56,000

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%