Volume of a cone = PI x r^2 x h/3
Volume = PI x 5^2 x 9/3
Volume = 235.62 cubic cm.
Volume of a block of wax = L x W x H
Volume = 2 x 4 x 3 = 24 cubic cm.
Total number of blocks = Volume of cone / volume of blocks:
235.62 / 24 = 9.82
Round up to 10.
They will need 10 blocks.
Answer: A number increased by 8.1' .
Answer:

Step-by-step explanation:

Expand brackets.


Subtract both sides by 4.

Subtract 3x on both sides.


Divide both sides by 5.

Answer:
x=2, y= -1
Step-by-step explanation:
Please see attached picture for full solution.
Answer:
3^-6(81)^2=3^-6(6561)=9 which is 3^2