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Andrei [34K]
2 years ago
10

A population of rabbits at time t increases at a rate of 40-12t+3t^2 rabbits per year where t is measured in years. Find the po

pulation after eight years if there are 10 rabbits at t=0?
Mathematics
1 answer:
zmey [24]2 years ago
8 0

We have to find derivative of t

\\ \sf\longmapsto \dfrac{d}{dx}3t^2-12t+4

\boxed{\sf \dfrac{d(x^n)}{dx}=nx^{n-1}}

\\ \sf\longmapsto \dfrac{d}{dx}3t^2-\dfrac{d}{dx}12t+\dfrac{d}{dx}40

\\ \sf\longmapsto 6t-12

Now

  • t=8..

\\ \sf\longmapsto 6(8)-12

\\ \sf\longmapsto 48-12

\\ \sf\longmapsto 36

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What is the reliability of a two-component product if the components are in parallel, with individual reliabilities of 0.95, and
user100 [1]

The reliability of a two-component product if the components are in parallel is 0.99.

In this question,

The probability of failure-free operation of a system with several parallel elements is always higher than that of the best element in the system. Reliability can be increased if the same function is done by two or more elements arranged in parallel.

A system contains two components that are arranged in parallel, they are 0.95 and 0.80.

Therefore the system reliability can be calculated as follows

⇒ 1 - ( 1 - 0.95 ) × ( 1 - 0.80 )

⇒ 1 - (0.05 × 0.20)

⇒ 1 - 0.01

⇒ 0.99

Hence we can conclude that the reliability of a two-component product if the components are in parallel is 0.99.

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6 0
1 year ago
I need help with 34. if anyone can, please do so. Thank you !
andriy [413]
6 is the answer I believe
4 0
3 years ago
Which expression is equivalent to (01.05 LC) 3 to the 2 power 3 to the -5 power
9966 [12]

Answer:

Step-by-step explanation:

It when you do this tan that equals 4:12

5 0
3 years ago
A cylindrical water tank has a radius of 6 feet and a height of 20 feet. A larger tank with the same height has a volume that is
likoan [24]

Answer:

Radius of large cylinder = 10.39 feet\\

Step-by-step explanation:

Volume of the larger tank is three times the volume of smaller tank

Volume of smaller tank

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Volume of larger tank

= 3 * 2260.8 ft^3\\= 6782.4 ft^3\\

Or it can also be written as

\pi r^{2} h = 6782.4 ft^3\\(3.14) * ( r^2) 20 = 6782.4 ft^3\\r^2 = 108\\r = 10.39

6 0
3 years ago
9(a+2)=9 <br> con comprobación plisss!!
icang [17]

Answer:

9a+18=9

9a=-9

a=-1

Step-by-step explanation:

6 0
3 years ago
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