Please help will mark brainliest :)

0.36

Step-by-step explanation:

≥≧≦≤

.^◡^.

aM gObLiN gImMiE yE pOiNtS!                 ( thanks )

FractionDecimal

4/11           0.36363636   ~ the answer would be "0.36"

Step-by-step explanation:

I hope i helped :)

The radius is approximately 8.3 (units)

Step-by-step explanation:

Here Pythagorean Theorem is applicable. The radius (AB) can serve as a in the formula: a^2 + b^2 = c^2, side BC can serve as b, and the hypotenuse of the right triangle formulated in the picture (AC) can serve as c.

Now let's substitute and solve for side a, rather the radius AB:

a^2 + b^2 = c^2

a^2 + (10)^2 = (13)^2

a^2 + 100 = 169

a^2 = 69

a = √69

a = (About) 8.3

This means that the radius AB is equivalent to 8.3 (units)