MATHEMATICS HIGH SCHOOL

The population of the US at the first census in 1790 was 3,929 people. By 2000 the population had increased to 284,000,000! What is the percent increase in the population?

Answers

Answer 1

Answer:

7,228,202%

Step-by-step explanation:

Population at first census in 1979 was 3929

If the Population had increased to 284,000,000 by 2000, the population increase will be;

284,000,000-3929

= 283,996,071

%increase in population = increment/initial population×100%

= 283,996,071/3929×100%

= 7,228,202%

This means that the population has increased by 7,228,202%

Related Questions

What value of x is in the solution set of 2(3x – 1) ≥ 4x – 6?
10 times as many as 1 ten is ______ tens.
What is the answer to this please?-3(x+2)+5x = -9
Two faucets are dripping. One faucet drips every 4 seconds and the other faucet drips every 9 seconds. If a drop of water falls from both faucets at the same time, how many seconds will it be before you see the faucets drip at the same time?
Determine the solution to the system of equations by using substitution. Y=4x+10Y=-5x-10

Which reason completes the proof in the picture A.alternate interior angles converse
B.opposite sides of a parallelogram are congruent
C.opposite angles of a parallelogram are congruent
D.alternate interior angles theorem

Answers

C. Opposite angles of a parallelogram are congruent.

Angle 1 is congruent to angle 2 because they are opposite angles of the larger parallelogram. Angle 2 is congruent to angle 3 because they are opposite angles of the smaller parallelogram.

1235678 has how many tens in it? how many hundreds in it? and how many thousands? explain

Answers

My guess:
It has 7 tens because the 7 is in the tenths place.
It has 6 hundreds in it because a 6 is in the hundredths place.
And 5 thousands because a 5 is in the thousandths place.

My second mathematical guess:
123,567.8 tens because 12345678 divided by ten is that.
123456.78 hundredths because ^^^hundreds
12345.678 thousandths because^^^ thousands
Or another explanation for my second guess is each 0 it has in it is another decimal place moved to the left of the digits 12345678.

Hahaha hope I helped. It's just a guess. Lol

7 tens, 6 hundreds, and 5 thousands.

Unsaved Find the surface area of a conical grain storage tank that has a height of 46 meters and a diameter of 16 meters. Round the answer to the nearest square meter.

Answers

The formula for the surface area of a cone is $SA= \pi r(r+ √(h^2+r^2) )$ . Filling in accordingly, we have $SA= \pi (8)(8+ √(46^2+8^2) )$ and $SA=8 \pi (8+ √(2116+64))$ . That will simplify to $SA=8 \pi (8+ √(2180) )$ and $SA=8 \pi (8+46.69047)$ . If we LEAVE pi in the answer you would have $437.5 \pi$ which rounds to $438 \pi$ . If you multiply pi in, you would have 1375.5 or, rounded, 1376. Of course those labels are all meters squared.

Pablo folds a straw into a triangle with side lengths of 4x2 – 3 inches, 4x2 – 2 inches, and 4x2 – 1 inches. The perimeter of the triangle is 12x2 – 6 inches. If x = 1.5, what was the length of the straw before it was folded?

Answers

side 1 : 4x² - 3 inches
side 2 : 4x² - 2 inches
side 3 : 4x² - 1 inches

perimeter = 12x² - 6 inches

x = 1.5

12(1.5²) = 12(2.25) = 27 inches

I think the length of the straw before it was folded was 27 inches. - 6 inches is the fold of the straw.

A triangular banner has an area of 351cm2. The length of the base is two centimeters longer than four times the height. Find the height and length of the base.

Answers

Answer:

h = 13cm and b= 54cm.

Step-by-step explanation:

We have that the area $A=351cm^2$ and the base is two centimeters longer than four times the height, that is

$b = 2+4h$

where b is the base and h the height. Now, the area is

$A=(b*h)/(2)$

$351=((2+4h)h)/(2)$

$702=2h+4h^2$

$4h^2+2h-702=0$ .

Now, we are going to use the general formula to solve quadratic ecuations:

$h=(-b\pm√(b^2-4ac))/(2a)$

where a=4, b= 2 and c= -702.

$h=(-2\pm√(2^2-4(4)(-702)))/(2*4)$

$h=(-2\pm√(4+11232))/(8)$

$h=(-2\pm106)/(8)$

$h=(-2+106)/(8)$ or $h=(-2-106)/(8)$

As we are searching for the lenght, we choose the positive result:

$h=(-2+106)/(8)=13cm$

$b=2+4h = 2+52 = 54cm$ .

How do I find the Greatest Common Factor of 14m², 27a³, and 45a²?

Answers

Exactly the way you do it with numbers:

-- List all the factors of the first one.
-- List all the factors of the second one.
-- List all the factors of the third one.

-- Make a short list, consisting of the factors that appear
on all three lists. Those are the 'common' factors.

-- The greatest item on the short list is the greatest common factor.

14m², 27a³, and 45a² don't have any common factor except ' 1 '.
Since ' 1 ' is their only common factor, it's also their greatest one.

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