This is the picture I am not very good at proofs but hopefully someone can solve it.
Answer:
The volume of the solid is 
Step-by-step explanation:
1. Cylinder
For find the volume of a cylinder we use the next formula:

Then the volume of the cylinder is equal to 
2. Cones
For find the volume of a cone we use the next formula:

However there are two cones so we have to multiply the volume of one cone for two and we get the total volume for the cones which is 
3. Sum of the volumes
Finally we sum the volumes of the cylinder and the cones for get the final result

So approximating the result is 
3x = 18 - 3 times girls = # boys = 18
x = 6 - # of girls in the class
Answer:
the first one bc look at the m's and the d's the others look the same
Step-by-step explanation:
Answer: 126.48x+109.56 would be the largest possible perimeter if the area is 1000x + 750.
Step-by-step explanation: Not 100% certain of this answer.
find square root...
31.62x+27.39
that would give us 4 sides and since perimeter of rectangle is 2l+2w...
4(31.62x+27.39)=
126.48x+109.56 would be the largest possible perimeter if the area is 1000x + 750.