Una viga de de largo es vaciada en concreto que contiene 250kg/m3 de agua. ¿Cuál es el factor de contracción ? ¿Qué largo
tendrá la viga cuando se haya secado?

"if it is my birthday, then it is snowing"

-6 is the correct option from the above given options

circle area = pi * radius^2

if diameter = 10 then radius = 5

circle area = pi * 5^2

circle area = pi * 25

circle area = 78.5398163397 square units

step-by-step explanation:

5=812a+9+3

step 1: simplify both sides of the equation.

5=812a+9+3

5=(812a)+(9+3)(combine like terms)

5=812a+12

5=812a+12

step 2: flip the equation.

812a+12=5

step 3: subtract 12 from both sides.

812a+12−12=5−12

812a=−7

step 4: divide both sides by 812.

812a /812 = -7/812

a= -1/116

so the answer is

a=   -1/116