Ill mark brainlist plss help

Can (3,5 and square root 34) be sides on a right triangle?

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.

Look at this pattern ; 1,4,9, number 10000 belongs in this pattern . what’s the place of this number?