books in library6/7 are fiction, 5/7 are paperback, what fraction of books in library are fiction and paperback?

11/7

Step-by-step explanation:

Here's how we add

6

7

+

5

7

Step 1

Since our denominators match, we can add the numerators.

6 + 5 = 11

That gives us an answer of

11/7

side side side

side angle angle

angle side angle

side angle side

step-by-step explanation:

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