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Liula [17]
3 years ago
9

PLEASSSSSE HELPPPPPP This is my third post of this! I really need help

Mathematics
1 answer:
Nesterboy [21]3 years ago
6 0
Answer: x=25

solution:

we know that
The triangle external angle theorem states that: An exterior angle of a triangle is equal to the sum of the opposite interior angles

In this problem:
m∠9=m∠7+m∠8

substitute the given values:
(6x-20)°=30°+4x°

now solve for x:
6x-4x=30+20
2x=50
x=25 which is the final answer:)
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Whats the work for 0>3x-3-6
erik [133]

Hi Scotti


0>3x-3-6

0>3x-9

Now flip

3x-9<0

We need to add 9 to both sides

3x-9+9<0+9

3x<9

Divide both sides by 3 so we can find the value for x

3x/3<9/3

x<3


I hope that's help :)

7 0
3 years ago
A painting is 4 feet long.A photo frame is 10 inches long.How many inches longer is the painting then the photo frame?
Galina-37 [17]
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4 feet is 48 inches
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3 0
3 years ago
6w^2 + 11w +8w^2 + 15w -2 and 14w^2 +26w-2 are the equivalent ​
Agata [3.3K]

Answer:

6w^2 + 11w +8w^2 + 15w -2

Get same power near,

6w^2 + 8w^2 + 11<em>w</em>  + 15<em>w</em> -2

w^2 (6 + 8) + <em>w(11</em>  + 15) -2

14w^2 +26w-2

Yes equivalent

Step-by-step explanation:

5 0
3 years ago
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xenn [34]
2 numbers exact between 3 and 567 are 7 and 243
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Eighth note is half of a quarter note, a quarter of a half note and an eighth of a whole note.
6 0
3 years ago
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