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3 years ago

8

The population of ram in the Sheepy Forest from 2005 to 2013 is given in the table below. Let x = 0 represent 2005, x = 1 repres

ent 2006, etc. Find an exponential regression function of your data. Use the equation to predict the ram population in the year 2020.

1 answer:

Sedaia [141]3 years ago

4 0

Answer:

ytyty

Step-by-step explanation:

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goldenfox [79]

Answer:

15 mph

Step-by-step explanation:

Given: Boat took 2 hours to reach Town A going upstream.

Speed of stream= 3 mph

Time taken to reach back home= 1 hours 20 minutes

Lets assume distance covered one side be "d" and speed of boat in still water be "s".

∴ Speed of boat in upstream= $(s-3) \ mph$

Speed of boat in downstream= $(s+3)\ mph$

Also converting into fraction of time taken to reach back home.

Remember; 1 hour= 60 minutes

∴ Time taken to reach back home= $60+20= 80\ minutes$

Converting time given into fraction= $\frac{80\ minutes}{60\ minutes} = \frac{4}{3} \ hours$

hence, Time taken to reach back home is $\frac{4}{3} \ hours$

Now forming equation of boat travelling upstream and downstream, considering distance remain constant.

We know, $Distance= speed \times time$

⇒ $(s-3)\times 2= (s+3)\times \frac{4}{3}$

Using distributive property of multiplication

⇒ $2s-6= \frac{4}{3}s +4$

subtracting both side by $\frac{4}{3} s$

⇒ $2s-\frac{4}{3} s-6= 4$

Adding both side by 6

⇒ $2s-\frac{4}{3} s= 10$

taking LCD as 3

⇒ $\frac{2}{3} s= 10$

Multiplying both side by $\frac{3}{2}$

⇒ $s= \frac{3}{2} \times 10$

∴s= 15 mph

Hence, 15 mph is the speed of the boat in still water.

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A number cube is rolled three times. What is the probability of rolling three even numbers?

ziro4ka [17]

It depends on how many numbers are on the cube. If the cube goes up to five then you have a 2/5 chance to roll an even number one time. If the dice goes up to 10 then you have 5/10 chance of rolling an even number.

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Which of the following is a linear function?

irga5000 [103]

Answer: C

Step-by-step explanation:^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

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alexgriva [62]

<span>What is the quotient of 7035/15

469 is equivalent to 7035/15

because 7035/15=469</span>

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3 years ago

Factor the following expression.<br> 6x^2- 5x-1

jenyasd209 [6]

Answer:

X=(6x+1)(x-1) because you are factoring out

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