Answer: Divide resulting answer by 3
Step-by-step explanation:
After you find the area of the base of the cone and multiplied it by the height of the cone, use the answer for that equation and divide it by 3 to get your final answer.
The volume of a rectangular prism is the product of the three dimensions.
The width and length give the base area, which is 90.
So, if we multiply the base area and the height, we get the volume:

We know that V=1080 and w*l (i.e. the base area) is 90. So, we have

Answer:
Height of fir tree = 9 meters
height of pine tree= 12 meters
Step-by-step explanation:
The combined height of one fir tree and one pine tree is 21 meters. The height of 4 fir trees stacked on top of each other is 24 meters taller than one pine tree.
Let x be the height of fir tree and y be the height of pine tree

Subtract x from both sides

height of 4 fir trees = pine tree +24

Substitute 21-x or y in the above equation

Add x on both sides

Divide by 5 on both sides
x=9
Now plug in 9 for x and find out y


y=12
Height of fir tree = 9 meters
height of pine tree= 12 meters
Answer:
B. 1 1/7
Step-by-step explanation:
-9 2/7-(-10 3/7)
=-9 2/7+10 3/7
=1 1/7
Therefore, B. 1 1/7
I think the answer in this case would be D