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I am Lyosha [343]
3 years ago
11

Explain how to solve the following system of equations. what is the solution to the system? 2x+2y+z =-5

Mathematics
1 answer:
Travka [436]3 years ago
8 0
Please insert your equation number
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3 years ago
If a triangle has sides that are 21 and 6 what is the range for third side x?
VikaD [51]

Answer:

15<x<27

Step-by-step explanation:

Rule for the sides of a triangle:

The sum of the two smallest sides of a triangle must be greater than the biggest side.

In this question:

Sides of 6, 21 and x. We have to find the range for x.

If 21 is the largest side:

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x + 6 > 21

x > 21 - 6

x > 15

If x is the largest side:

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21 + 6 > x

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x < 27

Then

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Vika [28.1K]

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What is the area of the figure below? <br> Haaaaalp please
Thepotemich [5.8K]
A_1=6\cdot5=30\ [in^2]\\\\A_2= \frac{1}{2} \cdot[15+(7+5)]\cdot4=2\cdot(15+12)=2\cdot27=54\ [in^2]\\\\A=A_1+A_2=30+54=84\ [in^2]

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Is there enough information to prove that the triangles are congruent?
olasank [31]

Answer:

Yes, there is enough information to prove that the triangles are congruent.

SAS POSTULATE

Step-by-step explanation:

In\:\triangle ABC \: and \triangle XYZ\\

AB\cong XY..... (given) \\

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BC\cong YZ..... (given) \\

\therefore \triangle ABC \cong \triangle XYZ\\(SAS\: postulate)

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3 years ago
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