Find the circumference and the area of the circle with diameter 4yd
use vale 3.14 to with answer
be specific with answers with right symbol yd , yd2 or yd3

Step-by-step explanation:

The formula for circumference is ...

  C = πd

  C = (3.14)(4 yd) = 12.56 yd . . . . . . . . fill in the numbers; do the arithmetic

The circumference is 12.56 yd.

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Since the diameter is 4 yd, the radius is half that, or 2 yd. The formula for the area is ...

  A = πr²

Fill in the numbers and do the arithmetic.

  A = (3.14)(2 yd)² = 12.56 yd²

The area is 12.56 yd².

Comment on units

In problems such as these, I find it is often useful to keep the units with the numbers. The units can be treated like any variable: multiplied, divided, measures combined by addition or subtraction of "like units".

Just as (2a)² = 2²·a² = 4a², so does (2 yd)² = 2²·yd² = 4 yd². You can be sure that if the units of the problem don't make sense, there is an error somewhere.

water molecules will move from the side of higher water concentration to the side of lower concentration until both solutions are isotonic. at this point, equilibrium is reached. in an isotonic solution, the flow of water in and out of the cell is happening at the same rate.

hope this < 3

is there supposed to be a diagram or a graph for this one? ?

step-by-step explanation: