PLEASE HELP PLEASE DUE SOON The mass of potatoes sold loosely in a supermarket bin are normally distributed with a mean of 372 grams
and a standard deviation of 6.3 grams. The bin contains 164 potatoes.
(a) How many of the potatoes in the bin are expected to have a mass of 380 grams or more?
Round your answer to the nearest whole number.
(b) What percent of the potatoes in the bin are expected to have a mass of less than 360 grams?
Round your answer to the nearest tenth of a percent.
C) What is the probability that a potato randomly selected from the bin will have a mass of at least 370
grams?
Round your answer to the nearest tenth of a percent

relating to or denoting a system of numbers and arithmetic based on the number ten, tenth parts, and powers of ten.

step-by-step explanation:

  the correct choice is marked

step-by-step explanation:

the first two graphs show multiple turning points. the last graphs matches the description in every detail.

(b) 240

step-by-step explanation:

first, we use the pythagorean formula using the given side lengths to find x. then we use x to find the side lengths. then we add the side lengths to find the perimeter.

pythagorean theorem formula:

a^2 + b^2 = c^2

(x - 20)^2 + (x - 40)^2 = x^2

x^2 - 40x + 400 + x^2 - 80x + 1600 = x^2

x^2 -120x + 2000 = 0

(x - 100)(x - 20) = 0

x - 100 = 0 or x - 20 = 0

x = 100 or x = 20

we see that the solution x = 20 must be discarded because it will give a negative side length and a side length of 0. the only valid solution is x = 100.

perimeter = sum of the lengths of the sides

perimeter = x + x - 20 + x - 40

perimeter = 3x - 60

replace x with 100.

perimeter = 3(100) - 60

perimeter = 300 - 60

perimeter = 240