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Luda [366]
2 years ago
13

Simply please and the answer is not 5a

Mathematics
1 answer:
Arisa [49]2 years ago
3 0

Answer:

I think that the answer is 5a

{25}^{ \frac{1}{2} }  \times  {a}^{ \frac{2}{2} }  = {5}^{ \frac{2}{2} }  \times  {a}^{ \frac{2}{2} }  = 5a

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When a number is divided by 5, it has a remainder of 4.
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Geometry question, any help is appreciated
kodGreya [7K]

Answer:

Hence, the ratios are given by 5:7, 25:49, 125:343.

Step-by-step explanation:

We are given two spheres such that:

Volume of small sphere V_{s} = 250 yd^{3}

Volume of large sphere V_{l} = 686 yd^{3}.

Then the ratio of volume = 250 : 686 = 125 : 343.

Since, the volume of a sphere = \frac{4 \pi \times r^{3}}{3}, this gives us that the ratio of the radius = ∛V_{s} : ∛V_{l}

i.e. The ratio of the radius = ∛125 : ∛343 = 5 : 7.

Further, as the surface area of a sphere = 4 \pi \times r^{2}, this gives us that the ratioof surface area = r_{s} ^{2} : r_{l} ^{2}

i.e The ratio of the surface area = 5^{2} : 7^{2} = 25 : 49

So, the ratio of the surface areas = 25 : 49.

Hence, the ratios are given by 5:7, 25:49, 125:343.

4 0
2 years ago
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