Distributive property equations what is (1+9n)10=-91

n = -101/90

Step-by-step explanation:

Step 1: Simplify both sides of the equation.

(1+9n) (10) = −91

(1) (10) + (9n) (10) = −91 (Distribute)

10 + 90n = −91

90n + 10 = −91

Step 2: Subtract 10 from both sides.

90n + 10 − 10 = −91 − 10

90n = −101

Step 3: Divide both sides by 90.

90n/90 = −101/90

n = −101/90

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)