A45 degree sector in a circle has an area of 13.75pi cm^2, what is the area of the circle? enter your answer as a decimal.

What is the equation of the graph below? y=sec(x)-4

Find the slope of a line given the following two points

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.