Abiology class is studying mold. the samples need to be magnified 30 times in order for students to identify the key features. if an actual sample is 20 millimeters long, how many centimeters is the magnified image?
(1 millimeters = 0.1 centimeters)

Write the rational number in lowest terms 99/-15

1- is the product of two rational numbers irrational or rational? first, make a hypothesis by multiplying two rational numbers. then, use variables such as x=a/b and y=c/d and the closure property of integers to prove your hypothesis. 2- what do you think the product of a nonzero rational number and an irrational number is? is it rational or irrational? make use of variables, the closure property of integers, and possibly a proof by contradiction to prove your hypothesis. 3- why do we have to specify that the rational number must be nonzero when we determine what the product of a nonzero rational number and an irrational number is? if the rational number were 0, would it give us the same result we found in part b?

Select all the statements that apply to this figure