Answer:
B, D, and E
Explanation:
First, the formula for the area of a circle is
Since pi is equal to 3.14, all we need is the radius squared. Since your radius is 12, =144. Therefore, your equation for <em>area</em> will be (3.14)(144), answer B.
Second, the formula for the circumference of a circle is .
So, 2(3.14)(12), answer D.
Edit: Answer E also says the same as above- it just multiples the 2 and the 12 together. Sorry for the initial error!
Answer:
b. concerned with the depletion of natural resources.
Explanation:
- The green movement is a movement that is focused the protection and the preservation of the earth environment at large and is concerned with the preservation and the protection of the diversity of the species as the flora and the fauna and the trend has started in the united states and has spread to many far and wide nations. And its focuses on the elimination of the waste generation and the development of a safe and better planet
D. They do not produce electricity.
Passive solar heating is a technique where the sun's energy
is used for heating spaces. It does not generate electricity but can save substantial
electricity by making use of thermal mass. Materials that have a high density
such as concrete and bricks absorb and store electricity. Along with operable windows
and thermal chimneys, thermal mass is being
utilized to take advantage of sun exposure.
Answer:
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