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tekilochka [14]
3 years ago
10

Help me pleaseeeeee pretty please please please

Mathematics
1 answer:
frosja888 [35]3 years ago
6 0
A. f(x^2+5x)=1/x(x+5)

B. Domain:
(−∞,−5)∪(−5,0)∪(0,∞),{x|x≠0,−5}

Range: (−∞,−4/25]∪(0,∞),{y∣y≤−4/25,y>0}
The explanation is hard like the question lol
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¿Cuál dígito debe ir en el recuadro para
Keith_Richards [23]

Answer:

7

Step-by-step explanation:

English:

Which digit should go in the box to

make the next number divisible

between 2, 3 and 9? 8 ,? 48

Let x be the number, then the number will look like this:

8x48

This number is already divisible by 2, because it ends with an even number.

Now we need to check for divsibility by 3.

For this to be divisible by 3, the sum of the digit should be a multiple of 3.

8 + x + 4 + 8 = x +20

We know if a number is divsible by 9, it is also divsible by 3.

So

x + 20=9,18,27,....

The least positive solution is

x + 20 = 27

x = 27 - 20

x = 7

Therefore 8748 is divsible by 2,3, and 9.

4 0
3 years ago
Dion practiced the long jump . He jumped 3.05 meters,2.74 meters and 3.3 meters.What was the average length of Dion's jumps?
Mademuasel [1]
All you do is subtract 3.05 and 2.74 then do the same thing with the other ones and see what number is between all of them. What grade are you in
5 0
3 years ago
Read 2 more answers
What is the distance between points A and B?
Maslowich
-2? I'm guessing I think it's wrong but the distant between us -2 but if it were measuring I'd say 5 by counting the points
8 0
3 years ago
Read 2 more answers
What is x+4=10 answer fast
adell [148]

Answer:

x=6

Step-by-step explanation:

10-4=6

3 0
3 years ago
If x – 10 is a factor of x2 – 8x – 20, what is the other factor?
Svetach [21]

Answer:

The other factor is (x+2)

Step-by-step explanation:

we know that

(x-a)(x-b)=x^{2}-xb-xa+ab

(x-a)(x-b)=x^{2}-(a+b)x+ab

In this problem we have

x^{2} -8x-20

and

a=10 -----> because is a factor

substitute and solve for b

x^{2} -8x-20=x^{2}-(10+b)x+10b

so

8=10+b\\b=-2

Verify in the second equation

-20=10b -----> -20=10(-2) -----> -20=-20--> is ok

The other factor is (x+2)

3 0
3 years ago
Read 2 more answers
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