Is 3/12 a rational number

It is

Step-by-step explanation:

3/12 is actually a quarter which is equal to 0.25. It certainly isn't an irrational number, but is indeed a rational one.

3/12 is actually a quarter which is equal to 0.25.

In mathematics, a rational number is a number that can be expressed as the quotient or fraction p/q of two integers, a numerator,p, and a non-zero denominator q. For example, −3/7 is a rational number, as is every integer.

Yes it is...

:)

Hope I got it right :P

answer:   28.56 feet (approx)

step-by-step explanation:

since, triangle abc has measure of angle c equal to 55 degrees, measure of angle abc equal to 90 degrees, and length of bc equal to 20 feet.

we have to find out the measurement of segment ab.

therefore, tan 55° =

but bc = 20 feet.

⇒ tan 55 ° =  

⇒ ab = 20 × tan 55 °

⇒ ab = 20 × 1.42814800674

⇒ ab = 28.5629601348   ≈ 28.56 feet