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Art [367]
3 years ago
9

The country of Freedonia has decided to reduce its carbon-dioxide emission by

Mathematics
1 answer:
Goshia [24]3 years ago
3 0

Answer:

\\E(t) =40(0.65)^{t}

Step-by-step explanation:

Since the country wants to reduce the emission by the percentage each year, the function will be decaying function. The formula of decaying function will look like this  

E(t) =E_{0} (1-r)^{t}\\

Where

E(t) = the number of emission after t years

E0= the number of initial emission= 40 million tons

r=rate of growth/decay = 35%= 0.35

t= time in years

If we put the number, the equation will be:

E(t) =E_{0} (1-r)^{t}\\E(t) =40(1-0.35)^{t}\\E(t) =40(0.65)^{t}

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Evaluate 6+4/a+b/3 when a=4 and b=3
vodka [1.7K]

Answer:

8

Step-by-step explanation:

First, insert the values into the problem. It would look like this: 6 + 4/4 + 3/3

We can then reduce 4/4 into 1 and 3/3 into 1 as well.

Then, you get:

6+1+1 or 6+2 which is equal to 8

-Cheers, Galaxy

6 0
3 years ago
In this particular arithmetic sequence, a7 = 34 and a15 = 74. What is the value of a21?
Karo-lina-s [1.5K]
So i believe its <span> a21 = 109 a21 = 85 a21 = 108 a21 = 104.

So the answer would be 104 

Hope this helps</span>
5 0
3 years ago
7. Compare the value of the 5 in 85,327 and 435.
Colt1911 [192]

Answer:

5 in the 85327= five thousand units

5 in the 435= five units

Step-by-step explanation:

85,327= eighty five thousand, three hundred and twenty seven

Value of five or the position if five in the above number is the thousand position

5 in the above = five thousand unit

435= four hundred and thirty five

The position of five in the above number is the unit position

Five in the above= five unit

6 0
3 years ago
Jason inherited a piece of land from his great-uncle. Owners in the area claim that there is a 45% chance that the land has oil.
Ierofanga [76]
Since it is stated that the machine he bought only predict about 80%. Thus, about 20% are still possible that there are oils in the land that he owned.
In a 100% value = 80% were the 0 possibillites detected by the machine and 20% are still the possibility that it has an oil.
=> 80% = 0.80
=> 20% = 0.20
In the given choices. letter B has the closest value to the 20% that we expected.
Thus, let's have B as an answer.
5 0
3 years ago
Read 2 more answers
You pick a card at random, put it back, and then pick another card at random.
Shtirlitz [24]

Answer:

0%

Step-by-step explanation:

Don't quote me on that but I'm pretty sure

4 0
2 years ago
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