If the radius of the circle above is 12 in, what is the area of the circle? A. 576 sq in B. 144 sq in C. 12 sq in D. 24 sq in

Step-by-step explanation:

Formula for the area of a circle of radius r is A = πr², where r is the radius.

Here, A = π(12 in)²  = 144π in², or approximately  452.89 in².

Double check to ensure that you have copied down the possible answers correctly.  Answer B would be correct if you were to insert π.  (See above.)

answer: procent 54 wynosi 33,33%

d, x=8

step-by-step explanation:

simplifying

4x + -5 = 2x + 11

reorder the terms:

-5 + 4x = 2x + 11

reorder the terms:

-5 + 4x = 11 + 2x

solving

-5 + 4x = 11 + 2x

solving for variable 'x'.

move all terms containing x to the left, all other terms to the right.

add '-2x' to each side of the equation.

-5 + 4x + -2x = 11 + 2x + -2x

combine like terms: 4x + -2x = 2x

-5 + 2x = 11 + 2x + -2x

combine like terms: 2x + -2x = 0

-5 + 2x = 11 + 0

-5 + 2x = 11

add '5' to each side of the equation.

-5 + 5 + 2x = 11 + 5

combine like terms: -5 + 5 = 0

0 + 2x = 11 + 5

2x = 11 + 5

combine like terms: 11 + 5 = 16

2x = 16

divide each side by '2'.