Which of the following is equivalent to the expression below for all values of x where the expression is defined?
13
x − 1
+
7
x + 1

F
20
x2−1

H
20x+6
x2−1

G
6x+20
x2−1

J
20x
x2−1

answer: 25.4 units

step-by-step explanation: radius = 12.7 units

diameter = twice the radius

diameter = 12.7 x 2

= 25.4

a

step-by-step explanation:

strong negative correlation

hello from mrbilldoesmath!

answer:   x^2 + y^2 = 1024

discussion:

the equation of a circle with center (h,k) and radius "r" is

(x-h)^2 + (y-k)^2 = r^2.

in our case

(x-0)^2 + (y-0) ^2 = 32^2 = 1024

you,

mrb