Simplify. 8m+4n+7m−2n

17mn

m + 2n

15m + 2n

15m + 6n

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)

the answer is c. ⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀

answer: hello!

the answer to this problem is, d. (7.3)(8.52)=62.19