A company sells apples in packages of 4. The masses of the individual apples are normally distributed with a mean of 175 g and a standard deviation of 15 g. Assume that the weights of apples are independent from
each other.
Let T = the total weight of 4 randomly selected apples.
Find the probability that the total mass is less than 685 g

can you rephrase the question ? it is unclear : -)

step-by-step explanation:

plz mark brainliest i took the test

answer: (-8,4) are the coordinates of a

step-by-step explanation:

let the side of square abcd is x .

thus the area of square abcd is .

now, by the diagram area of triangle ead= 1/2 × ea × ad = 1/2 × ea × x

( because ad is the side of square)

and, according to the question,

the areas of square abcd and right ead are equal.

⇒

⇒ea=2x

thus, ea: ab=2: 1

therefore, point a divides line segment eb into the ratio 2: 1.

⇒ by sectional formula coordinates of a are,

=

=

=(-8, 4)

thus the coordinates of a are (-8,4)