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4 years ago

Give recent SOUTH AFRICAN POPULATION'S STATISTICS.

1 answer:

8 0

In 1960 there was 17,396,361
In 1990 there was about 36 million
In 2000 there was 44 million
In 2010 there was 55 million
and 2016 (this year) there was 54,978,907

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Evaluate the limit, if it exists. Show work. lim┬(x→5)⁡〖(x^2-3x-10)/(2x-10)〗

BARSIC [14]

Hello, first of all we can notice that

$5^2-3*5-10=25-15-10=0$

and

$2*5-10=0$

and 0 divided by 0 is undetermined.

So, we need to factorise and simplify first.

$x^2-3x-10=(x-5)(x+2)\\\\\text{Because we already known that 5 is a zero...}\\\\\text{... and the sum of the zeroes is 3 = 5 - 2 and the product is -10 = 5 * (-2).}$

For x different from 5, we can write

$\dfrac{x^2-3x-10}{2x-10}=\dfrac{(x-5)(x+2)}{2(x-5)}=\dfrac{x+2}{2}$

So, the limit when x tends to 5 is

$\dfrac{5+2}{2}=\boxed{\dfrac{7}{2}}$

Thank you

5 0

4 years ago

360 divided by 10 due in 20 min.

Mazyrski [523]

Answer:

Step-by-step explanation:

3 0

3 years ago

The sun of two numbers is 10. The difference between the two numbers is 4.

Klio2033 [76]

Answer:

7 and 3

Step-by-step explanation:

7 0

3 years ago

PLSS HELP!! FIRST ANSWER GETS BRAINLIEST!!!!

wlad13 [49]

Answer:

$4.5

Step-by-step explanation:

Hot dogs=h

Cheese burgers=c

2h+3c=20

2h+5c=29

There are two ways to solve-

1. Elimination- multiply the bottom by -1.

2h+3c=20

-2h-5c=-29

-2c=-9

c=4.5

2. Just move 2h, and you get 2c=9, 4.5

6 0

3 years ago

What would the answer be to 4x-6y=36 graphed

xz_007 [3.2K]

Answer:

see the attachment

Step-by-step explanation:

It is convenient to graph this equation using the x- and y-intercepts.

The x-intercept is found where y=0, so ...

4x = 36

x = 9

The y-intercept is found where x=0, so ...

-6y = 36

y = -6

<em>Graph the two points (9, 0) and (0, -6) and draw a line through them</em>. The graph is shown below.

8 0

3 years ago