In an albatross colony the wingspan of the birds is approximately normally distributed with an average wingspan of 3.07 metres and standard deviation 0.48 metres. What percentage of the birds have wingspan above 2.91 metres?

Give your answer rounded to the nearest integer. Do not include the percent sign.

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.

Write 5(6x+4)-2(5x-2) in the form a(bx+c) where a,b and c integers and a> 1

What is the circumference of a circle with an area of 50.24 cm²?