The ages of the winners of a cycling tournament are approximately bell-shaped. The mean age is 27 7 years, with a standard deviation of 3 4 years. The winner in one recent year was 30 years old (a) Transform the age to a z score
(b) Interpret the results
(c) Determine whether the age is unusual
REB
(a) Transform the age to a z-score
za
(Type an integer or decimal rounded to two decimal places as needed)

Molly shared a spool of ribbon with 12 people. each person received 3 feet of ribbon. which equation can she use to find r, the number of feet of ribbon that her spool originally had?

Angles r and s are complementary. the measure of angle r is 31 degrees. which equation can be used to find angle s?

What is the next step in the given proof? choose the most logical approach. a. statement: m 1 + m 2 + 2(m 3) = 180° reason: angle addition b. statement: m 1 + m 3 = m 2 + m 3 reason: transitive property of equality c. statement: m 1 = m 2 reason: subtraction property of equality d. statement: m 1 + m 2 = m 2 + m 3 reason: substitution property of equality e. statement: 2(m 1) = m 2 + m 3 reason: substitution property of equality