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Lena [83]
3 years ago
10

How many triangles can be constructed with angles measuring 50,90,40

Mathematics
1 answer:
inn [45]3 years ago
5 0
Only two triangles:
The 90* angle is stable, so you can change only the position of the 50* and 40* angles.
1 triangle: 40* is right to the 90*
2 triangle: 40* is left to the 90*

Hope this helped you!
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4th term of (4x-y)^9
Neko [114]
Now, let's do the same as we did for the previous one here.

\bf (4x-y)^9\implies 
\begin{array}{llll}
term&coefficient&value\\
-----&-----&-----\\
1&+1&(4x)^9(-y)^0\\
2&+9&(4x)^8(-y)^1\\
3&+36&(4x)^7(-y)^2\\
4&+84&(4x)^6(-y)^3
\end{array}

notice again, how did we get 84 for the 4th element's coefficient? well 36 * 7 / 3.  and so on.  And you can just expand it from there.
3 0
3 years ago
Solve the following equation. 2/3x + 6 =1/2 x + 1/4x
MA_775_DIABLO [31]

Answer:

x = 72

Step-by-step explanation:

2/3x + 6 = 1/2x + 1/4x

2/3x + 6 = 3/4x

3/4 - 2/3 = 1/12

6 = 1/12x

Multiply 6 by 12 to get x

x = 72

8 0
3 years ago
Read 2 more answers
Multiply and simplify: 3a(4a2 – 5a + 12)
DochEvi [55]
3a(4a²-5a+12)

12a³-15a²+36a

~Hope this helped!~
3 0
3 years ago
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I need help, i don’t understand if
MakcuM [25]

Answer:

(6,6)

Step-by-step explanation:

Hope this helps!

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