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3 years ago

Can someone help plsss!!!!

Mathematics

2 answers:

wolverine [178]3 years ago

8 0

Slope de slope b c a d yrs

Yuki888 [10]3 years ago

3 0

Answer:

Step-by-step explanation:

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During the first 14 days 2744 people visited a new store. The same number of people visited the store each day. About how many p

Vikentia [17]

Everyday about 200 people visited the store Because you would divide 2744 by 14 and get 196 and round that to 200

4 0

3 years ago

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Suppose that the population P(t) of a country satisfies the differential equation dP/dt = kP (600 - P) with k constant. Its pop

jeka94

Answer:

The country's population for the year 2030 is 368.8 million.

Step-by-step explanation:

The differential equation is:

$\frac{dP}{dt}=kP(600 - P)\\\frac{dP}{P(600 - P)} =kdt$

Integrate the differential equation to determine the equation of P in terms of t as follows:

$\int\limits {\frac{1}{P(600-P)} } \, dP =k\int\limits {1} \, dt \\(\frac{1}{600} )[(\int\limits {\frac{1}{P} } \, dP) - (\int\limits {\frac{}{600-P} } \, dP)]=k\int\limits {1} \, dt\\\ln P-\ln (600-P)=600kt+C\\\ln (\frac{P}{600-P} )=600kt+C\\\frac{P}{600-P} = Ce^{600kt}$

At t = 0 the value of P is 300 million.

Determine the value of constant C as follows:

$\frac{P}{600-P} = Ce^{600kt}\\\frac{300}{600-300}=Ce^{600\times0\times k}\\\frac{1}{300} =C\times1\\C=\frac{1}{300}$

It is provided that the population growth rate is 1 million per year.

Then for the year 1961, the population is: P (1) = 301

Then $\frac{dP}{dt}=1$ .

Determine k as follows:

$\frac{dP}{dt}=kP(600 - P)\\1=k\times300(600-300)\\k=\frac{1}{90000}$

For the year 2030, P (2030) = P (70).

Determine the value of P (70) as follows:

$\frac{P(70)}{600-P(70)} = \frac{1}{300} e^{\frac{600\times 70}{90000}}\\\frac{P(70)}{600-P(70)} =1.595\\P(70)=957-1.595P(70)\\2.595P(70)=957\\P(70)=368.786$

Thus, the country's population for the year 2030 is 368.8 million.

3 0

4 years ago

Please help me please Please

QveST [7]

Answer:

see explanation

Step-by-step explanation:

The integers between - 4 and 4 are

- 3, - 2, - 1, 0, 1, 2, 3

Note this does not include - 4 and 4

(2)

Integers less than - 10 are

-11, - 12, - 13, - 14 , ....

3 0

4 years ago

Which of these expressions is equivalent to 3(1-2) А) 3х - 6 в) За – 2 с) 3х + 2 D) 3х +6

blondinia [14]

The expression:

3 (x - 2)

indicates that the number 3 before the parenthesis is multiplying the expression inside the parenthesis.

Then in order to do such we use what is called the distributive property which tells us to "distrubute" suche multiplication among the two term that are in the parenthesis:

3 x - 3 * 2

3 x - 6

Which is the first option in your answer list.

4 0

1 year ago

So which would be the answer?

kolezko [41]

The answer will be c

6 0

3 years ago

Read 2 more answers