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Kay [80]
4 years ago
15

How do you do this please help me

Mathematics
2 answers:
KonstantinChe [14]4 years ago
5 0
Perimeter is the sum of the sides.
4x + 6 +3x + 2 = 57
7x + 8 = 57
7x = 49
x = 7
Nina [5.8K]4 years ago
4 0

The perimeter of a triangle is the sum of all sides' lengths.

Thus,

P=6+4x+(3x+2)=7x+8.

Given P=57\ cm, you get

7x+8=57,\\ \\7x=57-8,\\ \\7x=49,\\ \\x=\dfrac{49}{7},\\ \\x=7\ cm.

Answer: x=7 cm.

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Find the length of the hypotenuse of the triangle. 4.5 m 6 m The length of the hypotenuse is meters.​
Ksenya-84 [330]

Answer:

c = 7.5 meters.​

Step-by-step explanation:

hello :

use phtagore - rule :

c² = 6²+4.5²

c² = 36 + 20.25

c² =56.25

c  = √56.25

c = 7.5 meters.​

3 0
3 years ago
angle 1 and angle 2 are a linear pair . m angle 1 =x-39 and m angle 2 =x+61 find the measure of each angle
lora16 [44]

Answer:

m(angle1)=79-39=40

m(angle2)=79+61=140

Step-by-step explanation:

m(angle1)+m(angle2)=180

x-39+x+61=180

2x=158

x=79

m(angle1)=79-39=40

m(angle2)=79+61=140


8 0
3 years ago
Plz hurry!!!! How do you find it?
Sloan [31]
Fine the length BC using the cosine law. Google the law and sub it in
6 0
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Please help please help please help please help
gladu [14]

the square root property is the correct option

8 0
3 years ago
If a=2 b=1 find the value of a square minus b square​
Usimov [2.4K]

<em>The answer is 3</em>

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a²-b² = 2²-1²= 4-1 =3

6 0
3 years ago
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