Suppose the sediment density (g/cm) of a randomly selected specimen from a certain region is normally distributed with mean 2.64 and standard deviation 0.80. (a) If a random sample of 25 specimens is selected, what is the probability that the sample average sediment density is at most 3.00? (Give answer accurate to 3 decimal places.)

your answer would be 10x - 1

step-by-step explanation:

hans did not square the 40-unit side; he merely multiplied it by 2.   incorrect.

what i would say the best answer is a. 40.5

check above link.

graphically?   well, you graph them both, the solutions is where they both intersect each other, since there are two solutions, meaning they will meet twice, or namely the linear will run into the quadratic curve twice, and where they meet, those x,y coordinates are the solutions to the system.