Cual es la fórmula para sacar área de la base de un objeto cuadrangular

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.

For what values of the variable x is the expression square root of 7x+14+ square root of 7-x a real number?

If your teacher tells you to do questions 6 through 19 in your math book for homework, how many questions is that