Which of the following describes the numbers shaded on the hundred chart with 22, 33, 44, and 55 shaded? Choose 1

(Choice A)

The shaded numbers are all prime.

(Choice B)

The shaded numbers are all composite.

(Choice C)

Some shaded numbers are prime and some are composite.

v v cj van config k tbs eng r.c r.c fcb fb gb frfr

the first one is x^2+2x+2

the second one is x^2+4

the last one is x^2-4x+8

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)

on plase n