Simplify 9x(5x2)

A. 14x2
B. 14x3
C. 45x2
D. 45x3

it should be C

Step-by-step explanation:

I could be wrong but I multiplied 9 times 5 then left with 2 but it should go by pemdas im not sure im in Algebra 1

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)