<u>Given</u>:
The satang coin from Thailand has a radius of about 7 mm.
We need to determine the diameter and circumference of the coin.
<u>Diameter of the coin:</u>
The diameter of the coin can be determined by multiply the radius by 2.
Thus, we have;
Substituting r = 7, we get;
Thus, the diameter of the coin is 14 mm.
<u>Circumference of the coin:</u>
The circumference of the coin can be determined using the formula,
Substituting and , we get;
Thus, the approximate value of the circumference of the coin is 43.96 mm
Step-by-step explanation:
I'll just go with the substitutions:
2 + 4*(3*2) - 5 - 3*2 =
= 2 + 24 - 5 - 6 =
= 26 - 11 =
= 15
b and d can be eliminated because there are multiple solutions.
answer: A, because it shows all solutions to the equation
It has 2 variables and the other one has 1