What is the image of (3,7) after a dilation by a scale factor of 3 centered at the origin?

the answer is b: 18

step-by-step explanation:

use the pythagorean theorem to .

a^2+b^2=c^2

plug 18 for "r"

the 2 legs are 18 and 24

18^2+24^2=c^2

324+576=c^2

900=c^2

c=30

30-12=18

18 is the radius

: )

answer: translate the circles so they share a common center point and dilate circle y by a scale factor of 3.

the answer is 13

step-by-step explanation:

5*5=25

12*12=144

25+144=169

169^2=13