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Andru [333]
3 years ago
12

Help with my geometry hw please :/

Mathematics
1 answer:
MrRa [10]3 years ago
7 0
What do you need help
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The table gives estimates of the world population, in millions, from 1750 to 2000. year population year population 1750 790 1900
Tems11 [23]
The poopulation exponential model is given by

P(t)=P_0e^{kt}

Where, P(t) is the population after year t; Po is the initial population, t is the number of years from the starting year; k is the groth constant.

Given that the population in 1750 is 790 and the population in 1800 is 970, we obtain the population exponential equation as follows:

970=790e^{50k} \\  \\ \Rightarrow e^{50k}=1.228 \\  \\ \Rightarrow 50k=\ln{1.228}=0.2053 \\  \\ \Rightarrow k=0.0041

Thus, the exponential equation using the 1750 and the 1800 population values is P(t)=790e^{0.0041t}

The population of 1900 using the 1750 and the 1800 population values is given by

P(t)=790e^{0.041\times150} \\  \\ =790e^{0.6158}=790(1.8511) \\  \\ =1,462

The population of 1950 using the 1750 and the 1800 population values is given by

P(t)=790e^{0.041\times200} \\  \\ =790e^{0.821}=790(2.2729) \\  \\ =1,796

From the table, it can be seen that the actual figure is greater than the exponential model values.
7 0
3 years ago
What is 3/5+3/8 in simplest form
schepotkina [342]
The answer would be 39/40.

1. Find the LCD of both of the fractions (LCD = 40)

2. Make the denominators the same as LCD (The LCD would be 40)

3. Simplify (24/40 + 15/40)

4. Join the denominators
(24 + 15/40)

5. Simplify (39/40)

In decimal form its 0.975.
5 0
3 years ago
Learning
bazaltina [42]

Answer:

2:25

Step-by-step explanation:

6 0
3 years ago
Increase 8kg by 23%.<br><br><br> I need help quickly!!!<br><br> - Thankyou :)
kumpel [21]
For this you can use the operation: (8*23) / 100. this will give you the     ANSWER 9.84
5 0
3 years ago
What does r equal -13=r/9+8
Shkiper50 [21]

Answer:

13

Step-by-step explanation:

3 0
3 years ago
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