Given the geometric sequence where a1 = 3 and r = √2 find a9

Is the orthocenter of a triangle on the inside ?

If you are just building your payment history, how many points from a perfect score will you possibly miss?

The weights of broilers (commercially raised chickens) are approximately normally distributed with mean 1387 grams and standard deviation 161 grams. what is the probability that a randomly selected broiler weighs more than 1,425 grams?