The area of the circle is 28.26
<u>Step-by-step explanation:</u>
Given that,
The diameter of the circle = 6
The formula to find the area of the circle is given by,
Area of the circle = πr²
where,
- r is the radius of the circle
- π has the default value of 3.14
The steps to find the area of a circle is to square the radius or multiply it by itself. Then multiply the squared radius by 3.14 to get the area.
Now, to find the radius = diameter /2
Radius = 6/2
r = 3
Substitute r = 3 in the area formula,
Area of circle = (3.14) × (3)²
⇒ 3.14 × 9
⇒ 28.26
Therefore, the area of the circle is 28.26
The <u>correct answer</u> is C) yes, the answer is written in scientific notation.
Explanation:
In scientific notation, we have a decimal number multiplied by a power of 10. The decimal number has the decimal point behind the first non-zero digit, and the exponent on the power of 10 tells us how many places to move the decimal.
In this problem, we have 5.6, which has the decimal after the first non-zero digit. We also have 10¹², which tells us to move the decimal 12 places.
This is in scientific notation.
The answer to this question is x=8; y= -7
