Which statement about the dilation of these triangles is true?
Pre-Image
Image
4(2)
5
-
5(2)
4
3
월
3(2)
1
The scale factor is 2
The scale factor is 2.
The scale factor is 3.1
The scale factor is 4

is there a picture

step-by-step explanation:

answer: 819.89 miles across america

step-by-step explanation:

5=812a+9+3

step 1: simplify both sides of the equation.

5=812a+9+3

5=(812a)+(9+3)(combine like terms)

5=812a+12

5=812a+12

step 2: flip the equation.

812a+12=5

step 3: subtract 12 from both sides.

812a+12−12=5−12

812a=−7

step 4: divide both sides by 812.

812a /812 = -7/812

a= -1/116

so the answer is

a=   -1/116