Simplify.

(3x^2 + 2x + 7x^3) + (10x^2 + 6x + 9)

a) 7x^3 + 13x^2 + 8x + 9

b) 7x^3 + 30x^2 + 12x + 9

c) 13x^3 + 8x + 16x^3

d) 13x^4 + 7x^3 + 8x^2 + 9

A) 7x^3 + 13x^2 + 8x + 9

Step-by-step explanation:

(3x^2 + 2x + 7x^3) + (10x^2 + 6x + 9)

I like to line them up vertically

7x^3 +3x^2 + 2x

+       (10x^2 + 6x + 9)

7x^3 +13x^2 +8x +9

Hey there!

Firstly, combine your like terms

Good luck on your assignment and enjoy your day!

~

( - 4 , -7 )

all the lines must parallel  

step-by-step explanation:

coordinates of c = ( - 1 , 2 )

3 units left = ( -4 , 2 )

9 units down = ( - 4 , 11 )

x coordinate can be written by using the formula, x= x1 + 2/5(x2 - x1)

step-by-step explanation:

formula

x = x1 + p/w(x2 - x1)

let the line segment ab with a(x1,y1) and b(x2,y2)

a point(x,y) divide ab in the ratio, 2: 3 the x coordinate can be written as

x = x1 + p/w(x2 - x1)

here p=2 and w = 2+3

therefore,

x coordinate can be written by using the formula, x= x1 + 2/5(x2 - x1)

similarly y coordinate y = y1 + 2/5(y2 - y1)