Which of the following describes a rigid transformation?
a. reflecting the figure across the y-axis
b. translating the figure four units up
c. enlarging a figure by a scale of two
d. rotating a figure 180 degrees

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.

The volume of a cube-shaped shipping container is 13,824 cubic inches. find the edge length of the shipping container.

What is perpendicular to y=-1/2x+11