Classify each square root as rational or irrational. √4 √9 √12 √17 √20 √25
20 pts plzz

the least common denominatore of 7 and 2 is 9

step-by-step explanation:

7+2=9

what level of math? also i don't need to be paid if i can you.

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

you divide them and then you get the answer i took this class this year

step-by-step explanation: