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AfilCa [17]
3 years ago
14

What is the missing side? HELP!!!

Mathematics
1 answer:
Kisachek [45]3 years ago
5 0
The missing side would be B = 15
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( simultaneous equations)
daser333 [38]

Answer:

See method below.

Step-by-step explanation:

m/n + n/3 = 2

2/m + n = 4    

First  eliminate the fractions by multiplying the first equation by 3n:-

3m + n^2 = 6n...........(1)

and the second equation by m:-

2 + mn = 4m..............(2)

Now we solve using substitution:-

From equation  (2):-

4m - mn = 2

m = 2 / (4 - n)

Now substitute for m in equation (1):-

6/ (4 - n) + n^2 = 6n

6 + n^2(4 - n) = 6n(4 - n)

6 + 4n^2 - n^3 = 24n - 6n^2

n^3 - 10n^2 + 24n - 6 = 0

This will not factor so we could solve this using graphical software.

To find the values of the variable m we substitute the found values of n into one of the original equations and solve for m.






6 0
3 years ago
It takes a day to build 2/3 of a model airplane gow many model airplanes can be built in 6 days​
Sedaia [141]

Answer:

4 airplanes

Step-by-step explanation:

1 = 2/3

6 = x

cross multiply

x = 6 × 2/3

therefore x = 4

5 0
2 years ago
Read 2 more answers
Jorge (J), Marcus (M) and Ren (R) want to pool their Pokemon cards together. Jorge has two times the amount of cards that Marcus
Oxana [17]

Answer:

Marcus has 494 cards.

Jorge has 988 cards.

Ren has 518 cards.

Step-by-step explanation:

Let x  represent Marcus's cards.

M  +   J   +   R

(x) + (2x) + (x+24) = 2000

x + 2x + x + 24 = 2000

4x +24 =2000

4x = 1976

x = 494

7 0
3 years ago
An offshore lighthouse is 2 kilometers from a Coast Guard station C and 2.5 kilometers from a hospital H near the shoreline. If
dangina [55]

Answer:

  4.3 km

Step-by-step explanation:

The law of cosines can be used to find the desired distance. If we call the lighthouse position point L, then we have ...

  CH² = LC² +LH² -2·LC·LH·cos(L)

  CH² = 2² +2.5² -2·2·2.5·cos(143°) = 10.25 -10cos(143°) ≈ 18.2364

  CH ≈ √18.2364 ≈ 4.27 . . . . km

The distance CH is about 4.3 km.

5 0
3 years ago
How is this written in an expanded version?
Yuri [45]

Powers distribute over multiplications:

(ab)^c = a^c\cdot b^c

So, you have

(3k^5)^2 = 3^2 \cdot (k^5)^2

Now, 3^2 is simply 9.

As for (k^5)^2, we have to use the rule

(a^b)^c = a^{bc}

to get

(k^5)^2=k^{5\cdot 2}=k^{10}

So, the final answer is

(3k^5)^2 =9k^{10}

5 0
3 years ago
Read 2 more answers
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