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Misha Larkins [42]
3 years ago
12

The number of fish in a lake can be modeled by the exponential regression equation y = 14.08 • 2.08x, where x represents the yea

r. Which is the best prediction for the number of fish in year 7? Round your answer to the nearest whole number.
Mathematics
2 answers:
lorasvet [3.4K]3 years ago
5 0

Answer:

2372 fish

Step-by-step explanation:

Given:

y = 14.08 • 2.08^x

where y represents the number of fish in a lake and x represents the year.

In order to predict the number of fish in year 7, just replace x = 7 in the above equation,  to get:

y = 14.08 • 2.08^(7)

y = 2371.6 ≅ 2372

Naily [24]3 years ago
4 0

Answer:

2372

Step-by-step explanation:

Filling in a 7 for x gives you

y=14.08(2.08)^7

Raise 2.08 to the power of 7 to get

y = 14.08(168.4392677) and multiply to get

y = 2371.62489

Since we cannot have a decimal amount of fish, the population will round to 2372 as a whole number

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3 years ago
WHY CAN'T ANYONE HELP ME? :( Jen Butler has been pricing​ Speed-Pass train fares for a group trip to New York. Three adults and
devlian [24]

Answer:

Children: $13

Adults: $18

Step-by-step explanation:

Well for both sets we can set up the following system of equations,

\left \{ {{3a + 4c = 106} \atop {2a + 3c = 75}} \right.

So first we need to solve for a in the first equation.

3a + 4c = 106

-4c to both sides

3a = -4c + 106

Divide 3 by both sides

<u>a = -4/3c + 35 1/3</u>

Now we plug in that a for a in 2a + 3c = 75.

2(-4/3c + 35 1/3) + 3c = 75

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Combine like terms

1/3c + 70 2/3 = 75

-70 2/3 to both sides

1/3c = 4 1/3

Divide 1/3 to both sides

c = 13

Now we can plug in 13 for c in 3a + 4c = 106,

3a + 4(13) = 106

3a + 52 = 106

-52 to both sides

3a = 54

Divide 3 by both sides.

a = 18

<em>Thus,</em>

<em>an adult ticket is $18 and a children's ticket is $13.</em>

<em />

<em>Hope this helps :)</em>

5 0
3 years ago
Read 2 more answers
Help me please with my math
motikmotik

Answer:

P = 47.1 units

Step-by-step explanation:

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now you have 2 semi-circles, which equals 1 full circle which, if we find the circumference to then we just add it to 22 to get the entire answer

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18-12=
kompoz [17]

Answer:

her score was 18/30. for 18+12=30 and out of 30, she had 18 correct

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10 months ago
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