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VLD [36.1K]
3 years ago
14

Simplify 5 m - 13 M - n + 4 m​

Mathematics
2 answers:
TEA [102]3 years ago
8 0

Step-by-step explanation:

-4m-n is the answer i hope

Plzzz mark brainliest and Plzzz follow me plzzz

mel-nik [20]3 years ago
7 0

Answer: -4m-n

Step-by-step explanation:

5m-13m-n+4m

5m-13m+4m-n

-8m+4m-n

-4m-n

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Cuanto es dcneicneen eie neim ​
svetlana [45]

Answer:

Lo lamento tanto, pero no puedo entender la pregunta puedes decirme cual es para poderte ayudar. :)

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
How do you solve this problem?
jekas [21]
Very nice problem. You should look up the history of this question. It has a very long one having to do with mirrors made between 50 BC and 50 AD.

Step One
Find AB, BC, AC
Before beginning this problem, I'm going to arbitrarily name 
c = AB
a = BC
b = AC It just makes the calculations easier.

AB = radius of the large circle - radius of the medium circle = 20.62 - 8.04 = 12.58
BC = Radii of the two smaller circles added together = 8.04 + 7.35 = 15.39
AC = Radius of the large circle - Radius of the small circle = 20.62 - 7.35 = 13.27

So
a = 15.39
b = 13.27
c = 12.58

Step Two
Find Angle A or <BAC
a^2 = b^2 + c^2 - 2*b*c * Cos(A)
15.39^2 = 12.58^2 + 13.27^2 - 2 * 12.58 * 13.27 * Cos(A)
236.852 = 158.26 + 176.1 -  333.87 * Cos(A)
236.852 = 334.4 - 333.87*Cos(A)
-97.55 = - 333.87 *  Cos(A) 
-97.55 / -333.87 = Cos(A)
0.2922 = cos(A)
A = cos-1(0.2922)
A = 73.01 degrees

Step Three
Just to see if you understand what was done, I'll give you the givens for finding c, and the answer and you can work through the calculations to see if your answer agrees with mine. If it doesn't PM me.
c = 12.58
b = 13.27
a = 15.39

12.58^2 = 13.27^2 + 15.39^2 - 2*13.27*15.39*Cos(C)
C = 51.42

Step Four
Find <B
Every triangle has 180 degrees so
B = 180 - <A - C
B = 180 - 51.42 - 74.01
B = <54.57. 
I have found a moderator who opened the question up so that I can show you why the Cos law is the only way to do this. If the circles are very disproportionate as in this diagram, then no simple assumption can be made. The cos law is all that will work. I would have posted this earlier, but I didn't think anyone would find another method. It's ingenious but not possible for the situation below.

3 0
3 years ago
If x2=4(5-1) what is the value of x
Deffense [45]
X2=4(5-1)
x2=4(4)
x2=16
x=4

Check: 4 squared (4 times 4) equals 16. When you square a number, you multiply the number by itself.
5 0
3 years ago
How do you do equations.
Nesterboy [21]
Do you have a specific equation I can help you with. I can explain them better with a problem to look at?
7 0
3 years ago
Read 2 more answers
What is the difference between integers and real numbers?
galina1969 [7]
Integers are positive and negative whole numbers no fractions or decimals.
Real numbers do have fractions and decimals that integers do not.
5 0
3 years ago
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