The domain is y >=0. Domain is the possible x values
Answer:
The equivalent expression is 4x + 3
The answer is 4.3 to 1 decimal place
Answer:
Volume = 35185.8 
Step-by-step explanation:
Recall the formula for the volume of a cone: 
Where R is the radius of the cone's circular base (in your case half of 80 km,(that is 40 km)
And h stands for the height of the cone (in your case 21 km)
We replace such in the formula and calculate its final value:

We round it to the number of decimals your problem request (let's say to one decimal) and also include the cubic units:
Volume = 35185.8 
Answer:
see in the picture mark brainliest if correct