Adecimal is a fraction that has a denominator of 100.
a. sometimes
b. always
c. never

Always is the answer. becuz .2 is 20/100. i like math so ik

The answer is sometimes

That is because to find a decimal you have to put the fraction over any multiple of ten, not only 100.

Example:
To make 1/2 a decimal, you put it over 10.
That would be 5/10
5/10=0.5

In this case we put the decimal over 10 not 100.

Hope that helps!

Hello! i hope this
since the cosine is the ratio of the adjacent side to the hypotenuse, you can see that cos 60° = ½. answer. according to the property of cofunctions (topic 3), sin 30° is equal to cos 60°. sin 30° = ½.