Keely walked five sixths of a mile to her friend's house and three sixths of a mile to the store. How far did Keely walk in total? Use the benchmark fraction one half, 1, and 0 to help five sixths mile

two sixths mile

one and four sixths miles

one and two sixths miles

An equation of the line tangent to y=x^3+3x^2+2 at its point of inflection is

Rockwell hardness of pins of a certain type is known to have a mean value of 50 and a standard deviation of 1.1. (round your answers to four decimal places.) (a) if the distribution is normal, what is the probability that the sample mean hardness for a random sample of 8 pins is at least 51?

Given sin∅ = 1/3 and 0 < ∅ < π/2 ; find tan2∅ a. (4√2)/9 b. 9/7 c. (4√2)/7 d.7/9