3 years ago

Needing of help about this

Mathematics

1 answer:

Sergeu [11.5K]3 years ago

4 0

Answer:

The second, third, and fourth

Step-by-step explanation:

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7a + 5

Step-by-step explanation:

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4 years ago

28 is increased by 150%. what's the final number

sp2606 [1]

Answer:

Step-by-step explanation:

20x(1+150%)

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3 years ago

the sum of the first n terms of a sequence is 20 - 10 / 2 ^ n - 1 find the sum of the first five terms

Travka [436]

Answer:

$S_5=\dfrac{170}{9}$

Step-by-step explanation:

Given that,

The sum of first n term of a sequence is $S_n=20-\dfrac{10}{2n-1}$

We need to find the sum of the first 5 terms.

Put n = 5,

$S_5=20-\dfrac{10}{2(5)-1}\\\\=20-\dfrac{10}{10-1}\\\\=20-\dfrac{10}{9}\\\\=\dfrac{170}{9}$

So, the sum of first 5 terms is equal to $\dfrac{170}{9}$ .

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LekaFEV [45]

Answer:

16 the answer

Step-by-step explanation:

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Lin and Andre start walking toward each other at the same time from opposite ends of a 22 mile walking trail. I am to lazy to ty

notka56 [123]

Answer:

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Step-by-step explanation:

I think it might be wrong but I did my best sorry!

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3 years ago

Read 2 more answers