-3y+10=-5y+8 add 5y to both sides
2y+10=8 subtract 10 from both sides
2y=-2 divide both sides by 2
y=-1
For #2 it is. #4 it isn’t. #6 it isn’t.
Answer:
d = 13.8 feet
Step-by-step explanation:
Because we are talking about cubic feet of water, we need the formula for the VOLUME of a cylinder. That formula is

We will use 3.141592654 for pi; if the tank HALF filled with water is at 20 feet, then the height of the tank is 40 feet, so h = 40; and the volume it can hold in total is 6000 cubic feet. Filling in then gives us:

Simplify on the right to get

Divide both sides by 125.6637061 to get that

Taking the square root of both sides gives you
r = 6.90988299
But the diameter is twice the radius, so multiply that r value by 2 to get that the diameter to the nearest tenth of a foot is 13.8
Put the numbers in order
4 5 7 9 11 12 12 14
Find median 9+11=20/2 so 10
Now find median for the first 1/2 of numbers and the second half
6 12
Find difference 12-6=6
IQR=6
Answer:
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