I need help, sleps plzz , i dont understand plzzz dont ignoree

x =

Step-by-step explanation:

3x+6 = 4x^2

4x^2 -3x -6 = 0

x =

the correct answer is c

the circumference of a circle is, 10.676 cm.

step-by-step explanation:

the formula for circumference of a circle is given by:

where

c is the circumference of a circle and

d is the diameter of a circle.

given: diameter(d) = 3.4 cm and use

substitute these values in [1] we get;

cm

therefore, the circumference of a circle is, 10.676 cm