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AVprozaik [17]
3 years ago
11

A plane flies 15 miles in 20 seconds. How long would it take the plane to cover 30 miles?

Mathematics
1 answer:
ExtremeBDS [4]3 years ago
6 0

Answer:it would take the plane 40 seconds

Step-by-step explanation:

if you multiply by two then you would be able to get 30

like 15 times 2 and since it’s 15 miles to 20 seconds or 15:20 you would have to multiply by the same number.

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Test the series for convergence or divergence (using ratio test)​
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Answer:

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Step-by-step explanation:

<u><em>Step(i):-</em></u>

Given series is an alternating series

∑(-1)^{n} \frac{n^{2} }{n^{3}+3 }

Let   U_{n} = (-1)^{n} \frac{n^{2} }{n^{3}+3 }

By using Leibnitz's rule

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 U_{n} - U_{n-1} = \frac{n^{2}(n-1)^{3} +3)-(n-1)^{2} (n^{3} +3) }{(n^{3} +3)(n-1)^{3} +3)}

Uₙ-Uₙ₋₁ <0

<u><em>Step(ii):-</em></u>

    \lim_{n \to \infty} U_n =  \lim_{n \to \infty}\frac{n^{2} }{n^{3}+3 }

                       =  \lim_{n \to \infty}\frac{n^{2} }{n^{3}(1+\frac{3}{n^{3} } ) }

                    = =  \lim_{n \to \infty}\frac{1 }{n(1+\frac{3}{n^{3} } ) }

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∴ Given series is converges

                       

                     

 

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3 years ago
A sports team donates 252 tickets to a sporting event, with tickets to be shared equally among 9 classrooms. How many tickets do
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Step-by-step explanation:

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Answer:

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Step-by-step explanation:

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2 years ago
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Hi, I'd be glad to help you with this equation!

The answer is (9) 

Hope this helps. 
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