Why are radicals simplified before adding and subtracting? explain your reasoning by adding sqrt8 and sqrt32.

According to the 2008 u.s. census, california had a population of approximately 4 × 10^7 people and florida had a population of approximately 2 × 10^7 people. which of the following is true? a. the population of florida was approximately two times the population of california. b. the population of florida was approximately twenty times the population of california. c. the population of california was approximately twenty times the population of florida. d. the population of california was approximately two times the population of florida.

Which describes the difference between the graph of f(x)=x^2 and g(x)=-(x^2-2)

What is the 9th term in the geometric sequence described by this explicit formula? an=-6. (2)(n-1) apex