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Trava [24]
2 years ago
5

In a certain year the population of a country reached 321 million. The overall birth rate was births per​ 1000, and the overall

death rate was deaths per 1000.
Mathematics
1 answer:
kkurt [141]2 years ago
4 0

Answer:

Then it would stay at 321 million

Step-by-step explanation:

if the birth and death rate is both 1000 then nothing will change. Population wise.

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The mass of one methane molecule is 2.7x10^-23gram. Find the mass of 90,000 molecules of methane. Express the answer in scientif
melomori [17]

Answer:

2.43 • 10^-18

6 0
2 years ago
Evaluate v(x) = 14-3x when x=-3, 0 and 4.
PtichkaEL [24]

Answer:

v(-3)=23\\v(0)=14\\v(4)=2

Step-by-step explanation:

v(x)=14-3x

v(-3)=14-3(-3)\\\\v(-3)=14-(-9)\\\\v(-3)=23

v(0)=14-3(0)\\\\v(0)=14-0\\\\v(0)=14

v(4)=14-3(4)\\\\v(4)=14-12\\\\v(4)=2

5 0
2 years ago
Read 2 more answers
Which of the following data is used to determine credit scores? A. who stays with you at your current residence B. the location
dusya [7]

Answer:

The correct option is the length of stay at your current residence.

Step-by-step explanation:

We have been asked that which data is used to determine credit scores.

The correct option is the length of stay at your current residence.

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8 0
3 years ago
x - 2y = 3 5x + 3y = 2 The lines whose equations are shown intersect at which point? (1, -1) (-1, 1) (0, 3/2)
gtnhenbr [62]
I would solve the first equation for x and then sub that value into x in the second equation.  That's the easiest way.  x - 2y = 3 solved for x is x = 2y+3.  Now sub that in for x in the second equation: 5(2y+3)+3y=2 and 10y + 15 + 3y = 2.  13y = -13, and y = -1.  Now sub that y value into either equation to solve for x: x = 2(-1) + 3 gives us an x value of x = 1.  Therefore, your solution to this system is (1, -1), first choice above.
4 0
2 years ago
The triangles below are similar because of the:
siniylev [52]

Answer:

AA similarity postulate

Explanation:

For triangle XZY, the angles are 90°, 40°, 50°.

For triangle AXB, the angles are 90°, 40°, 50°.

Which states that all the angles are of equal measure in the triangles.

This is stated by AA similarity theorem meaning when two angles are equal in the triangle. Then the triangles are congruent to each other.

7 0
2 years ago
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