Two companies working together can clear a parcel of land in 9 hours. working alone, it would take company a 2 hours longer to clear the land than it would company b. how long would it take company b to clear the parcel of land alone?

17 days.

Step-by-step explanation:

Let the company B takes x hours to clear the parcel of land alone.

Now, company A takes 2 hours longer time to clear the parcel of land than company B.

Therefore, company A will take (x + 2) hours to do the same job alone.

Now, Company A in one hour does part of the job.

And Company B in one hour does part of the job.

So, working together for one hour they will do parts of the job.

Therefore, they will complete the job in hours.

Hence, {Given}

⇒ x² + 2x = 18x + 18

⇒ x² - 16x - 18 = 0

Applying the Sridhar Acharya's formula,  

{Neglecting the negative root as x can not be negative}

⇒ x = 17 days (Answer)

sorry man i accidentally pressed yes my bad

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