Find the value of the expression: 1/3√.81-1

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.

Ab and bc are tangent to circle d. find x is ab = 3x + 8 and bc = 26. find x

What is the solution to the division problem below x3+x2-11x+4/x+4