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Alex_Xolod [135]
3 years ago
15

N-8=-4+5n solve for n.

Mathematics
1 answer:
Aleksandr [31]3 years ago
6 0

Step-by-step explanation:

Hey there!!!

Here,

Firstly, Shift n to right side and -4 to the left side, because we always try to have variable as positive.

- 8+4 =   + 5n-n

Now, Simplify them.

- 8 + 4 = 5n  - n

- 4 = 4n

You should divide now.

n =  \frac{ - 4}{4}

Therefore the value of n is -1.

{ As now you can keep it on left side. We generally find the vallue of variable by keeping it on left side. But we kept it right side in solution to avoid our confusion because if we kept it on left side and you would get harder to find the value at last as we need to transpose (-) to the right side value of n}.

<em><u>Hope it helps</u></em><em><u>.</u></em><em><u>.</u></em><em><u>.</u></em>

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Pls help with this ..its to be submitted this monday.....pls pls pls
Svet_ta [14]

Answer:

9pr = 2q^2

Step-by-step explanation:

28.

px^2 + qx + r = 0

If one root is A then the other root is 2A

We have A + 2A = -q/p   and A*2A = r/p

So 3A = -q/p  so A = -q/3p and  A^2  = r/2p  so A = √ (r / 2p)

Equating  these 2 equations:-

-q/3p =  √(r / 2p)

q^2 / 9p^2 = r / 2p

9p^2r = 2pq^2

9pr = 2q^2   (answer)


6 0
3 years ago
the length of the base of an isosceles triangle is 12 inches. Each base angle measures 50. which is a feasible plan to find the
kifflom [539]
To get the congruent angles we shall use the sine rule since we have the length of at least 1 side and the values of the angles. 
Base length=12 inches
Base angles=50°
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thus applying the sine rule we shall have:
a/sin A=b/sin B=c/sin C
thus we can get the congruent side as follows:
a/sin 50= 12/sin 80
a=(12 sin 50)/sin 80
a=9.334 inches
since the sides are congruent then the other congruent side will have a length of 9.334 inches 
3 0
2 years ago
If 2 &gt; -a, then _____.<br><br> a &gt; 2<br> a &gt; -2<br> a &lt; 2<br> a &lt; -2
FinnZ [79.3K]

Answer:

B. a >-2

Step-by-step explanation:

Hope this helps! Ask me anything if you have any quistions!

4 0
3 years ago
Read 2 more answers
How many possible outcomes are there for rolling three dice?
andriy [413]

Answer:

There is 216 , if you are using three dice. I hope this helps :)

Step-by-step explanation:

~abby

5 0
3 years ago
Which equation could be used to solve this problem? A number n is 8 less than the sum of 20 and 12. Find the number.
kifflom [539]

(20 + 12) - 8, since the question states n is EIGHT less than the sum of 20 and 12.


3 0
3 years ago
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