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Hatshy [7]
3 years ago
9

Please help 1/2x-3=3/2x+4

Mathematics
1 answer:
Keith_Richards [23]3 years ago
8 0
1/2x - 3 = 3/2x + 4
-4 - 3 = 3/2x - 1/2x
-7 = x <===
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The following table shows the estimated populations and annual growth rates for four countries in the year 2000. Find the
gladu [14]

Answer:

Part 1) Australia 19,751,012\ people

Part 2) China 1,319,645,764\ people

Part 3) Mexico 109,712,539\ people

Part 4) Zaire 60,534,681\ people

Step-by-step explanation:

we know that

The equation of a exponential growth function is given by

P(t)=a(1+r)^t

where

P(t) is the population

t is the number of years since year 2000

a is he initial value

r is the rate of change

Part 1) Australia

we have

a=19,169,000\\r=0.6\%=0.6\100=0.006

substitute

P(t)=19,169,000(1+0.006)^t

P(t)=19,169,000(1.006)^t

Find the  expected population in 2025,

Find the value of t

t=2005-2000=5 years

substitute the value of t in the equation

P(5)=19,169,000(1.006)^5=19,751,012\ people

Part 2) China

we have

a=1,261,832,000\\r=0.9\%=0.9\100=0.009

substitute

P(t)=1,261,832,000(1+0.009)^t

P(t)=1,261,832,000(1.009)^t

Find the  expected population in 2025,

Find the value of t

t=2005-2000=5 years

substitute the value of t in the equation

P(5)=1,261,832,000(1.009)^5=1,319,645,764\ people

Part 3) Mexico

we have

a=100,350,000\\r=1.8\%=1.8\100=0.018

substitute

P(t)=100,350,000(1+0.018)^t

P(t)=100,350,000(1.018)^t

Find the  expected population in 2025,

Find the value of t

t=2005-2000=5 years

substitute the value of t in the equation

P(5)=100,350,000(1.018)^5=109,712,539\ people

Part 4) Zaire

we have

a=51,965,000\\r=3.1\%=3.1\100=0.031

substitute

P(t)=51,965,000(1+0.031)^t

P(t)=51,965,000(1.031)^t

Find the  expected population in 2025,

Find the value of t

t=2005-2000=5 years

substitute the value of t in the equation

P(5)=51,965,000(1.031)^5=60,534,681\ people

8 0
3 years ago
Need help pleaseeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee<br><br><br>What is (f⋅g)(x)?
Sergio039 [100]

just need to multiply and axpand ?

( {x}^{2}  + 2)( {x}^{3}  - 4x + 2) =  {x}^{2} ({x}^{3}  - 4x + 2) + 2({x}^{3}  - 4x + 2) \\  =  {x}^{5}  - 4 {x}^{3}  + 2 {x}^{2}  + 2 {x}^{3}  - 8x + 4 \\  =  {x}^{5}  - 2 {x}^{3}  + 2 {x}^{2}  - 8x + 4

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A race car has gas mileage equal to 5.48 kilometers per liter. What is the car's gas mileage in miles per gallon?
Soloha48 [4]

Answer:

Approximately 12.88976.

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2 years ago
I NEED HELPPPP PLEASE RN!!
Romashka-Z-Leto [24]

Answer:

is A

Step-by-step explanation

b you n t p

3 0
3 years ago
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The luxury tax threshold in a professional sports league is the amount in total payroll that teams must stay under to prevent be
VMariaS [17]

Answer:

A: The coefficient changes from 120 to 117, and the base changes from 1.033 to 1.035. The function that represents the second model is A(t)=117(1.035)^t.

Step-by-step explanation:

luxury tax you get only the amount that you need

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