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salantis [7]
3 years ago
10

Can someoene help with this please?

Mathematics
1 answer:
Natalija [7]3 years ago
6 0
Put them all in an equation where (m<1)+(m<2)+(m<3)=180 because all the angles of a triangle added together equals 180. From there, solve for x using algebra. Combine like terms and then isolate x. For the second part, use the value you found for x and find the measurement of angle 3. angle 4 is supplemental to angle 3 because angle 3 plus angle 4 is equal to 180 degrees. subtract the measurement of angle 3 from 180 to find angle 4. let me know if you have any trouble. i will find a computer to better explain if needed. im using a mobile phone, so communication is a bit limited
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A document that is 35 in. By 40 in. Is redrawn at 1 1/2 scale and then redrawn at 1/4 scale. What are the final dimensions of th
Andru [333]
The dimension of the document is 35 inches by 40 inches.
It is redrawn at a scale of 1 1/2 or 3/2 or 1.5
The dimension will be:
35 * 1.5 = 52.5 in
40 * 1.5 = 60 in

Then redrawn again at 1/4 or 0.25
52.5 * 0.25 = 13.125 in
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5 0
3 years ago
6+2[x+8]+3x+11+x help plzzzzz
Alex787 [66]
6+2(x+8)+3x+11+x
First you have to expand the brackets:
6+2x+16+3x+11+x
Now you group like terms (terms with the same or no variable):
2x+3x+x+11+16+6
And finally, combine like terms:
6x+33

Hope this helps :)
4 0
3 years ago
The perimeter of GHJ
Dafna1 [17]
They have a scale factor of 5:6 so first we need to find the perimeter of KLM:
11 + 14 + 17 = 42
Then apply the scale factor of 5:6:
\frac{5}{6}  =  \frac{x}{42}
Set the denominators equal:
\frac{35}{42}  =  \frac{x}{42}
So we see that the perimeter of GHJ is 35.
6 0
3 years ago
Subtract 1.05 from a certain number. Multiply the difference by 0.8, add 2.84 to the product then divide the sum by 0.01 and get
attashe74 [19]
Just do the whole process backwards
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8 0
3 years ago
Simplify (8m2+m+7m2)-(3m-4m3+2m2)
kondaur [170]

(8m^2+m+7m^2)-(3m-4m^3+2m^2)\\\\=8m^2+m+7m^2-3m+4m^3-2m^2\qquad|\text{combine like terms}\\\\=(4m^3)+(8m^2+7m^2-2m^2)+(m-3m)\\\\=4m^3+13m^2-2m

4 0
3 years ago
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