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Sergio039 [100]
3 years ago
12

HELP!!!‼️‼️⚠️⚠️‼️‼️⚠️⚠️

Mathematics
1 answer:
kicyunya [14]3 years ago
6 0

Answer:

last option

x² + 81 = x² + 20x + 100

Step-by-step explanation:

\sqrt{ {x}^{2} + 81 }   = x + 10 \\

squaring both sides

(\sqrt{ {x}^{2} + 81 }  )^{2} =  {(x + 10) }^{2}   \\ {x}^{2}  + 81   =  {(x + 10)}^{2}

using the identity

(a + b)² = a² + b² + 2ab

for (x + 10) ²

{x}^{2}  + 81   =  {x}^{2}  + 20x + 100

<h3>hence, option D</h3>

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Answer:

12 meters far.

Step-by-step explanation:

The question translates to 10+2. The word problem states that the height of the platform is 10 meters. That means we can say that he'd have already traveled 10 meters down when he dived. And the problem also states that the diver goes two meters under the water, meaning that he had traveled 2 meters, in addition to the 10 meters. And so, we add the 10 and 2 to get 12 meters in total.

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Step-by-step explanation:

1. To calculate the lateral area of the prism by using the net you must:

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Then:

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Step-by-step explanation:

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CA = 65π

(ii.) TA = πrl + πr^2
TA = 65π + π (5^2)
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5 0
3 years ago
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