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Nutka1998 [239]
3 years ago
8

Researchers found that there are 164 raccoons on an island when they return a year later they find that there are 366 what is th

e growth factor for the raccoon population
Mathematics
1 answer:
olga55 [171]3 years ago
7 0

Answer:

Growth Factor = 2.2317 (rounded to 4 decimal places)

Step-by-step explanation:

The formula we will use is the growth formula, that is:

F=P(1+r)^t

Where

F is the future population (366)

P is present population (164)

r is the growth rate (we need to find this)

"(1+r)" is the growth factor

t is time in years (t=1 given)

Now, substituting, we find:

F=P(1+r)^t\\366=164(1+r)^1\\\frac{366}{164}=1+r\\2.2317=1+r

We haven't boiled down to r = something because we don't want growth rate (r), rather, we want growth factor (which is 1+r). So

Growth Factor = 2.2317

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If n = 5 and r = 3 Find "Cr.​
Marat540 [252]

Answer:

Cr = 10

Step-by-step explanation:

To calculate combinations we use the nCr formula: nCr = n! / r! * (n - r)!, where n = number of items, and r = number of items being chosen at a time.

C(n,r)=[?]

C(n,r)=C(5,3)

=\frac{5}{(3!(5-3)!)}

=\frac{5!}{3!*2!}

=10

[RevyBreeze]

3 0
2 years ago
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Bill had $5.42 and earned 2.25 he spent $3.78 how much did he have left
inna [77]

Answer:

3.89

Step-by-step explanation:

5.42+2.25=7.67

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Hope this helps

8 0
3 years ago
In the expression (ax+b)*(cx^2+dx+e), find two set of values of a,b,c,d and e so that the coefficient of x^3and x terms after ex
Brilliant_brown [7]

Answer:

2, 0, 2, 3, 5

1, 2, 4, 0, 5

Step-by-step explanation:

(ax + b)(cx² + dx + e)

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2(2)x³ + 2(3)x² + 2(5)x + 0 + 0 + 0

4x³ + 6x² + 10x

a = 2

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d = 3

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1(4)x³ + 1(0)x² + 1(10)x + 2(4)x² + 0 + 10

4x³ + 8x² + 10x + 10

a = 1

b = 2

c = 4

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2 years ago
When Devon cashed a $450 check at the bank, the teller gave him 18 bills, all $20 bills and $50 bills. Which system of equations
Neporo4naja [7]
B is the answer to the equation
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3 years ago
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sattari [20]

Step-by-step explanation:

(2x³y^-4)^-2 = 1/(4x⁶y^‐8) = y⁸/(4x⁶)

1/(8x⁵y^-7) = y⁷/(8x⁵)

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so, the whole expression is then

y⁸/(4x⁶) × y⁷/(8x⁵) × 4y⁴/x⁹

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so, D is the correct answer.

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2 years ago
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