12. Quadrilateral ABCD has vertices at A(8, 7), B(10, 2) , C(5, 4 )  and D(7,1) .
(a) Find the slope and length of sides AB and CD . Show your
work below.

(b) What type of special quadrilateral do your calculations in part
(a) tell you ABCD is? Explain.

(c) Prove, using coordinate geometry, that ABCD is a rectangle.

a. 3/4 ÷ 1/8 = 6

step-by-step explanation:

in the question, the number line represents 3/4 divided into 6 equal units. each arrow represents a unit and there are a total of six arrows.

the size of each unit is 1/8 as shown.

showing that 1/8 divides 3/4 into 6 divisions:

3/4 ÷ 1/8

= 3/4 x 8/1

= 3/1 x 8/4

= 3 x 2

= 6

hence, the number line represents six divisions given by 3/4 ÷ 1/8.

d

gimmee one of those gold crowns!

~coco

757764

step-by-step explanation:

de77737dd

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

: )