Answer:
see below
Step-by-step explanation:
for 7, about 520/20 = 26
for 8, around 2,000/100= 20
It would be the Associative property of addition i believe <span />
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Answer:
= 4096
Step-by-step explanation:
Rules:
Given that,
3x-y =12
Therefore
[ since 
]
[ applying 3rd rule]
[ applying 2nd rule]
[ since 3x-y =12]
=4096
Sphere Surface Area = <span> 4 • <span>π <span>• r²
50.27 = 4 * PI * r^2
</span></span></span>
<span>50.27 / (4 * PI) = r^2
</span>
<span>
<span>
<span>
4.0003594946
</span>
</span>
</span>
= r^2
r = sq root
(<span>
<span>
<span>
4.0003594946)
radius = </span></span></span>
<span>
<span>
<span>
2.0000898716
</span>
</span>
</span>
So the diameter =
<span>
<span>
<span>
4.0001797433
</span>
</span>
</span>
or it is roughly 4 feet
