Answer:

Step-by-step explanation:
The expression in the square root should be greater than or equal to zero, because square root of a negative number does not give a real number.

Answer:
NANI!?!?
Step-by-step explanation:2
POOOOOOOOOOOOOO
The top part of the shape is 8x6 and the bottom part is 6x6 so the answer is 84
The formula for a cone is

insert 20 for your height and rearrange the formula to find the radius. Leave a comment if you need more help.
Answer:its the 3ed one
Step-by-step explanation: