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aev [14]
3 years ago
13

Since YouTube first became available to the public in mid-2005, the rate at which video has been uploaded to the site can be app

roximated by v(t) = 525,600(0.42t2+2.7t_1) hours of video per year (0.5 _ t _ 7),
where t is time in years since the start of 2005.Ê Use a definite integral to estimate the total number of hours of video uploaded from the start of 2006 to the start of 2012. (Round your answer to the nearest million hours of video.)
million hours of vie
Mathematics
1 answer:
Sergeeva-Olga [200]3 years ago
7 0
\int\limits^7_1 {525,600(0.42t^2+2.7t-1)} \, dx \\=525,600 \left \{\frac{0.42t^3}{3}+\frac{2.7t^2}{2}-t \right.  \left \} {{7} \atop {1}} \right. \\=525,600\{[0.14(343)+1.35(49)-7]-[0.14+1.35-1]\}\\=525,600(107.17-0.49)\\=525,600(106.68)\\=56,071,008
Total number of video uploaded is 56 million
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7 0
2 years ago
Explain how to find the quotient of 3.4 ÷6
11111nata11111 [884]

Answer:

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Step-by-step explanation:


3 0
3 years ago
Which sequence has a common ratio of 2? a{20, 40, 80, 160, 320, 640, …} b{20, 10, 5, 2.5, 1.25, 0.625, …} c{20, 15, 10, 5, 0, -5
Elis [28]

Answer:

A

Step-by-step explanation:

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Therefore the common ration is 2

4 0
3 years ago
A number increased by 4 is the same as 19 minus 2 times the number
ElenaW [278]

Hello from MrBillDoesMath!

Answer:

n = 5


Discussion:

Let the original number be "n"  Translating the problem  statement to mathematical symbolism:

n + 4 = 19 - 2n                   =>  add 2n to both sides

n + 2n + 4 = 19 - 2n + 2n  =>  combine like terms

3n + 4 = 19                        => subtract 4 from both sides

3n = 19 -4  = 15                 => divide both sides by 3

n = 15/3 =5


Check: Does 5 +4 = 19 - 2(5)? Does 9 = 9? Yes. so the value for n is confirmed correct.


Thank you,

MrB

6 0
3 years ago
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Answer:

y=1/4x-1

Step-by-step explanation:

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