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Lena [83]
3 years ago
6

Please help I am stuck on this question

Mathematics
1 answer:
Harrizon [31]3 years ago
4 0

Answer:

3/4

Step-by-step explanation:

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Country A has a growth rate of 4.9​% per year. The population is currently 4 comma 151​,000, and the land area of Country A is 1
kvv77 [185]

Answer:

There will be one person on 1 square yard of land after 1,892,147.588 years.

Step-by-step explanation:

Continuous exponential growth formula:

P(t)=Pe^{rt}

P(t)= Population after t years.

P= Initial population

r=rate of growth.

t= time in year

Given that,

Growth rate of country A (r)= 4.9% per year=0.049 per year.

Initial population (P)= 151,000.

Land area of country area= 14,000,000,000 square yards.

There will be one person on one  square yard of land.

So, there will be 14,000,000,000  person for 14,000,000,000 square yard of land in country A.

P(t)=14,000,000,000 person

\therefore 14,000,000,000= 151,000 e^{0.049t}

\Rightarrow e^{0.049t}=\frac{ 14,000,000,000}{ 151,000}

Taking ln both sides

\Rightarrow ln|e^{0.049t}|=ln|\frac{ 14,000,000,000}{ 151,000}|

\Rightarrow {0.049t}=ln|\frac{ 14,000,000,000}{ 151,000}|

\Rightarrow t}=\frac{ln|\frac{ 14,000,000,000}{ 151,000}|}{0.049}

\Rightarrow t}=1,892,147.588 years

There will be one person for every square yard of land after 1,892,147.588 years.

7 0
3 years ago
On 1, I need help, and for 2, is the answer right?
kramer

Answer:

1.A 2.yes

Step-by-step explanation:

PEMDAS

5 0
2 years ago
Find the product. state your answer in standard form <br><br> (x+7)(x squared + 6x - 8)
USPshnik [31]

Answer:

{x}^{3}  +  13 {x}^{2}   + 34x  - 56

Step-by-step explanation:

(x + 7)( {x}^{2}  + 6x - 8) \\  = x ( {x}^{2}  + 6x - 8)  +  7( {x}^{2}  + 6x - 8)  \\  =  {x}^{3}  + 6 {x}^{2}  - 8x + 7 {x}^{2}  + 42x - 56 \\  = {x}^{3}  +  6 {x}^{2}  + 7 {x}^{2} + 42x - 8x - 56 \\  = {x}^{3}  +  13 {x}^{2}   + 34x  - 56 \\

6 0
3 years ago
Read 2 more answers
What is 4/2/3 x 1/3/7 ?
Tatiana [17]

Answer: 2/63

Step-by-

6 0
3 years ago
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What is 3.1 × 2.57? (6-6)<br> A 8.432<br> B 7.967<br> C 6.621<br> D 5
Contact [7]

Answer:

B. 7.967

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
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