The manufacturer of a certain brand of aluminum foil claims that the amount of foil
on each roll follows a Normal distribution
with a mean of 250 ft? and a standard
deviation of 2 ft? To test this claim, a
restaurant randomly selects 10 rolls of this
aluminum foil and carefully measures the
mean area to be. rº = 249.6 ft?
Find the probability that the sample mean
area is 249.6 ft- or less if the manufacturer's
claim is true.

La DI ADA DNW

Step-by-step explanation:

the discriminant is 64 + 4*1*12 = 112

this is prime.

step-by-step explanation:

"image"

step-by-step explanation:

in most of these problems, the notation is that the point with a "prime" is the image of the point without. that is, b' is the image of b.

here, there is no dilation or reflection. there is simply translation (with no direction shown). which figure you call the "preimage" and which one you call the "image" is up to you. as a matter of convention, the naming is as described above.