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.

it would be:

c.parallelogram.

answer

a,b, and d

explanation

a reflection angle is more than

but less than;

an angle that measures

is a reflex angle.(true)

an angle that measures less than

is acute.(true)

provided we are considering angles greater or equal to zero.

an acute angle lies in the range.

an obtuse angle is less than 180° but more than 90°

an angle that measures 300° is obtuse (false)

an angle that measures 65° is an acute angle.(true)