Report the answers to the following operations to the correct number of significant figures. Assume that all numbers are measurements (no integers). Round your answers. Round up for a 5. For example, 2.25 should be reported as 2.3 to two significant digits. Operation Calculator result

(13)(3.1416) 40.841
3.2 - 0.004592 3.1954
7.45 + 12.86 20.31
(4.34286 - 4.34235)/2.68594 1.8988 x 10^-4

25 ! the line of best fit is h = 5a + 86. predict the height at age 16.

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.

A3-dimensional figure has a square base and 4 lateral faces that meet at a point. explain the difference between the cross sections when a slice is made perpendicular to the base through the vertex, and when a slice is made perpendicular to the base and not through the vertex