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damaskus [11]
4 years ago
7

The fish population in a local stream is decreasing at a rate of 2.5% per year. The original population was 45,000. Write an exp

onential function to model this situation. Use y and x as your variables.
Mathematics
1 answer:
Julli [10]4 years ago
4 0

Answer:

y=45000(1-0.03)^x

Step-by-step explanation:

1) the exponential decay formula is

y=c(1-r)^x

where c= starting amount

r=rate of change

x=time

so

y=45000(1-0.03)^x

y=45000-1350x

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Lina20 [59]

Answer:

5/11

Step-by-step explanation:

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3 years ago
Name three numbers between 5.89 and 5.9?
slamgirl [31]
There is infinite amount of numbers between them. Three numbers, for example, are 5.891 ;5.892 ;5.894
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I am looking at 3 clocks that show 3 different times: 2:00, 3:00, and 4:00. The hands of each clock make an angle. Which hand po
Alina [70]

Answer:

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2 years ago
What is the sum of the first 5 terms of this geometric series? Use . -4 + 12 + (-36) + ⋯
yKpoI14uk [10]

Answer:

The sum of the first 5 terms is -244

Step-by-step explanation:

To calculate the sum of the geometric series, we need the first term, the common ratio and the number of terms we would like to sum.

The first term here is -4

The common ratio is T2/T1 or T3/T2 = 12/-4 = -3

number of terms n = 5

The formula to use is;

Sn = a(1-r^n)/(1-r)

Plugging these values, we have;

Sn = -4(1-(-3)^5)/(1-(-3))

Sn = -4(1+243)/4 = -1(244) = -244

7 0
3 years ago
A mother gives birth to a 9 pound baby. every 4 months, the baby gained 2 pounds. if x is the age of the baby in months, then y
chubhunter [2.5K]
For the equation of the line of the form y = mx + b, m is the slope of the line and b is the y-intercept which is the value of y when x is equal to zero. The slope is the rate of change of y per change in x. "y" would represent the dependent variable which is the weight of the baby while "x" represents the independent variable which is the number of months or the age of the baby in months. We calculate the slope as follows:

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at x = 0, it is said that the weight of the baby is 9 lbs so the value of b would be 9.

The equation of the line would be y = 0.5x + 9
6 0
4 years ago
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