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3 years ago

2x+4y+8=0 y x+2y−4=0

Mathematics

1 answer:

Snezhnost [94]3 years ago

7 0

Answer: https://mathsolver.microsoft.com/en/solve-problem/2x+4y-8=0

Step-by-step explanation: you should find your answer there

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The formula Upper A equals 23.1 e Superscript 0.0152 tA=23.1e0.0152t models the population of a US state, A, in millions, t ye

Wewaii [24]

Answer:

a) $A(t=0)= 23.1 e^{0.0152(0)}=23.1e^0 =23.1$

b) $t = \frac{ln(\frac{28.3}{23.1})}{0.0152}=13.357 years$

So for this case the answer would be 13.347 years, the population will be 28.3 million and ye year would be 2000+13.347 and that would be approximately in 2014

Step-by-step explanation:

For this case we assume the following model:

$A(t)= 23.1 e^{0.0152 t}$

Where t is the number of years after 2000/

Part a

For this case we want the population for 2000 and on this case the value of t=0 since we have 0 years after 2000. If we rpelace into the model we got:

$A(t=0)= 23.1 e^{0.0152(0)}=23.1e^0 =23.1$

So then the initial population at year 2000 is 23.1 million of people.

Part b

For this case we want to find the time t whn the population is 28.3 million.

So we need to solve this equation:

$28.3= 23.1 e^{0.0152(t)}$

We can divide both sides by 23.1 and we got:

$\frac{28.3}{23.1}= e^{0.0152t}$

Now we can apply natural log on both sides and we got:

$ln(\frac{28.3}{23.1})= 0.0152 t$

And then for t we got:

$t = \frac{ln(\frac{28.3}{23.1})}{0.0152}=13.357 years$

So for this case the answer would be 13.347 years, the population will be 28.3 million and ye year would be 2000+13.347 and that would be approximately in 2014

3 0

3 years ago

Question 6 (1 point)

AveGali [126]

Answer:

Step-by-step explanation:

its pretty simple just try that answer

6 0

3 years ago

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Yinting wants to start adding weight lifting to her exercise routine. Her trainer suggests that she starts with 40 repetitions f

lapo4ka [179]

Answer:

7 Weeks

Step-by-step explanation:

If she starts off with 40 reps for the first week, and she adds 6 reps a week, until she gets to 82 reps a week, then it would be 40 + 6 x answer = 82. Now, there are a couple ways you can do this, but the easiest but not shortest way is to do it one by one.

so, 40+6x1= 46

40+6x2= 52

40+6x3= 58, and so on and so forth, until you get to 40+6x7, which equals 82, therefore giving you the answer of 7, but the way quicker way is to take the total (82) and subtract the number of reps she starts out with (40), then divide that number by the amount that it increases each week (6), so:

(82-40)÷6, which will also give you the answer of 7, or 7 weeks.

5 0

3 years ago

What formula can we use to find the circumference of a circle?

Assoli18 [71]

Answer:

B plz mrk brainliest

Step-by-step explanation:

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3 years ago

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Three dogs for each cat a) d=3c b) 3d=c c) d= 3/c d) c=3/d

ivanzaharov [21]

The answer is would have to be b.

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3 years ago