Which set of expressions are not equivalent? (4 1/2a + 2) + 3 and 5 + 4 1/2 a

not equivalent

Step-by-step explanation:

2a+11

5+9/2a

answer: are you

step-by-step explanation:

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