Dirt must be evacuated for the foundation of the building 30 yards by 15 yards to a depth of 3 yards. how many trips will it take to haul the dirt away if a truck with the capacity of 3 cubic yard is use

First we should find the total volume of the dirt that must be evacuated:

Then we are told that the truck's capacity is 3 cubic yards. So then we must divide this total amount of dirt that must be evacuated and divide by 3 (the hauling capacity of the truck):

So now we know that it will take 450 trips to complete the dirt evacuation.

there is no question content here, but you for the free points! : d

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