a falling object travels a distance given by the formula d=2t+6t^2, where d is measured in feet and t is measured in seconds. how many seconds will it take for the object to travel 60 feet? round the answer to 4 decimal places. explain

Which statement accurately explains whether a reflection over the x-axis and a 180° rotation would map figure acb onto itself?

Iq scores for adults age 20 to 34 years are normally distributed according to n(120, 20). in what range does the middle 68% of people in this group score on the test?

Dexter read 11 science fiction books and 5 history books. lena read 9 science fiction books and 4 history books. compare the students’ ratios of science fiction books to history books. 1. determine the ratios’ form:    science fiction books to history books 2. write the ratios as fractions:    dexter: 115; lena: 94 3. rewrite with a common denominator. 4. compare. 5. answer the question. determine which shows the correct comparison of the ratios for this problem.