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3 years ago

PLEASE HELP URGENT!!!!

Mathematics

1 answer:

Lapatulllka [165]3 years ago

5 0

Answer:

Australia will have about 27 million

China will have about 1.41 billion

Mexico will have 133.35 million

Zaire will have about 100.9 million

Australia 2000 19,169,200 multiply your growth rate by 2 then divide it by your population your growth rate

China 1.2 billion in 2000 multiply your growth rate by 2 then divide it by your population your growth rate

Same for Mexico

and Zaire

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2. Given a directed line segment with endpoints A(3, 2) and B(6, 11), what is the point that

KATRIN_1 [288]

Answer:

The point of division is (5 , 8)

Step-by-step explanation:

* Lets explain how to solve the problem

- If point (x , y) divides the line whose endpoints are $(x_{1},y_{1})$

and $(x_{2},y_{2})$ at ratio $m_{1}:m_{2}$ , then

$x=\frac{x_{1}m_{2}+x_{2}m_{1}}{m_{1}+m_{2}}$ and

$y=\frac{y_{1}m_{2}+y_{2}m_{1}}{m_{1}+m_{2}}$

* Lets solve the problem

- The directed line segment with endpoints A (3 , 2) and B (6 , 11)

- There is a point divides AB two-thirds from A to B

∵ The coordinates of the endpoints of the directed line segments

are A = (3 , 2) and B = (6 , 11)

∴ $(x_{1},y_{1})$ is (3 , 2)

∴ $(x_{2},y_{2})$ is (6 , 11)

∵ Point (x , y) divides AB two-thirds from A to B

- That means the distance from A to the point (x , y) is 2/3 from

the distance of the line AB, and the distance from the point (x , y)

to point B is 1/3 from the distance of the line AB

∴ $m_{1}:m_{2}$ = 2 : 1

∵ $x=\frac{(3)(1)+(6)(2)}{2+1}=\frac{3+12}{3}=\frac{15}{3}=5$

∴ The x-coordinate of the point of division is 5

∵ $y=\frac{(2)(1)+(11)(2)}{2+1}=\frac{2+22}{3}=\frac{24}{3}=8$

∴ The y-coordinate of the point of division is 8

∴ The point of division is (5 , 8)

6 0

3 years ago

Q10 Q2.) Find the standard form of the equation of the parabola satisfying the given conditions.

Kipish [7]

Hello!!

Equation forms:

$y = \frac{x^2}{4} + \frac{x}{2} + \frac{13}{4}$

Therefore, $x^2 - 2x + 4y - 13 = 0$

And, this is how your graph would look

Good luck :)

8 0

3 years ago

If f(x) = 2x – 6 find f(7) - 9. *

evablogger [386]

Answer:

-1

Step-by-step explanation:

Plug 7 in for wherever there's an "x."

f(x) = 2(7) - 6

f(x) = 14 - 6

f(x) = 8

Now subtract 9 from 8.

8 - 9 = -1

6 0

3 years ago

What is the value of x? 155 105 A. 55° B. 160° C. 50° O D. 20°

Hatshy [7]

If you are taking one away from the other the answer is 50 degrees so try that hope this helps
=C.

3 0

3 years ago

Need help on HS geometry

monitta

Answer:

See below

Step-by-step explanation:

AB is a midsegment.

Property of the midsegment is midsegment is half the length of the parallel side of the triangle:

2AB = 88
AB = 44

And

3x - 4 = 44
3x = 48
x = 16

6 0

2 years ago