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Marysya12 [62]
3 years ago
8

The deer population of a certain area is modeled by the formula: P=578e^0.045t where t is measured in years. In approximately ho

w many years will the deer population reach 3000? 37.4 years 34.7 years 35.8 years 36.6 years
Mathematics
1 answer:
STatiana [176]3 years ago
5 0

Answer:

36.6 years

Step-by-step explanation:

Here, we are to find the number of years it will take for the population of deers to reach 3,000

What to do here is simply substitute the value of 3,000 for P and use it to find t

3000 = 578e^0.045t

Divide through by 578

5.1903 = e^0.045t

Take the ln (natural logarithm of both sides)

Recall ln e = 1

ln 5.1903 = ln e^0.045t

ln 5.1903 = 0.045t

0.045t = 1.6468

t = 1.6468/0.045

t = 36.595 years which is 36.6 years

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suppose that a water fountain produces a stream of water that follows the shape of a parabola. assigning the origin of a coordin
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The quadratic regression equation for the stream of water is y=-0.139x^{2} +1.667x {parabola}

     

Given that the water stream produced by fountain is parabola

Vertex of parabola is (6,5) , parbola is facing downward,axis of symmetry of parabola is x=6 and parabola passes through (0,0)

according to symmetry the third point on the parabola is (12,0)

General equation for a parabola⇒ Y=-4aX^{2}

⇒(y-5)=-4a(x-6)^{2}    { as the Vertex of parabola is (6,5) }

⇒(y-5)=-4a(x^{2} +36-12x)

subtituting (0,0) in the equation to get the value of a

⇒-5=-4a(36)

⇒ a=\frac{-5}{144}                      

equation of parabola⇒(y-5)=-4( \frac{5}{144})(x-6)^{2}

Therefore,The quadratic regression equation for the stream of water is y=-0.139x^{2} +1.667x

Learn more about parabola here:

brainly.com/question/21685473

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3 0
2 years ago
Elise and her younger brother, Reid, take turns loading the dishwasher after dinner. Because she is older, Elise loads the dishw
erik [133]

Answer:

<h2>48</h2>

Step-by-step explanation:

so  for every 3 Reid washes there are 4 Elsie washes

the ratio of washing is 3:4

lets add 3 and 4 up

3 + 4 = 7

now lets divide the total number of washes by the added ratio

84/ 7

=12

now we know that 1 part is 12

to find Elsie's part we need to x 12 by how many parts she has got

she washed 4 times

4 x 12

=48

5 0
3 years ago
Which inequality is shown?
Nimfa-mama [501]

Answer:

It should be J

Step-by-step explanation:

The line is solid indicating it is a greater than/less than/equal relationship and the shaded area indicated a positive y (so greater than)

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3 years ago
How many square feet of carpet will we need for this hole
Inessa05 [86]

Answer:

FIND THE HOLE SIZE IN THIS CASE THERE IS NO SIZE SO  ZERO IS THE AWNSER

pls can i have brainliest

3 0
4 years ago
Read 2 more answers
I really need the answers please help asap
DanielleElmas [232]

Step-by-step explanation:

In a straight line theres 180 degrees and where x is you can tell its an X lines the opposites will be the same.

First you need to work out the triangles 180-122=58 and a triangle is 180 degrees so

58+40=98 180-98=82°

now working out the other triangle.

180-82=98, 43+98=141

180-141=39

and because the opposites will end up the same x=39°

4 0
3 years ago
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