What is the quadratic regression equation for the data set? A) y=0.004x2+0.415x+0.546

B) y=−0.004x+0.415

C)y=−0.004x2+0.415x−0.546

D)y=−0.004(0.415)x

3x + 4y -25 =0 represents the amount of change sianna should recieve

answer: i think one of the answer is $150 and $300?

step-by-step explanation:

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)