2 years ago

Find the value of x in the triangle shown below.

1 answer:

4 0

Answer:

Step-by-step explanation:

${8}^{2} = {x}^{2} + { 3}^{2} \\ {x}^{2} = {8}^{2} - {3}^{2} \\ {x}^{2} = 64 - 9 \\ x = \sqrt{55} = 7.416$

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Georgia [21]

∴ $\frac{1}{2} +2+8+32.......12^{th}term$ =2796202.5

Step-by-step explanation:

First term(a) = $\frac{1}{2}$ common ratio(r) = $\frac{2}{\frac{1}{2} }$ =4

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$S_{n}=\frac{a(r^n-1)}{(r-1)}$

$S_{12}=\frac{\frac{1}{2}(4^{12}-1) }{4-1}$ =2796202.5

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