3 years ago

What is the total number degrees of all interior angles of a triangle?

Mathematics

1 answer:

BARSIC [14]3 years ago

3 0

<span> the total number degrees of all interior angles of a triangle is 180</span>

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A television with a 5:4 screen shows an image with a ratio of 25:12 which creates a letter boxed image. What percent of the scre

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Answer:75%

Step-by-step explanation:

You know that the ratio of the television's screen is . This ratio can be also written as the following fraction:

The television shows an image with a ratio of which can be also written as a fraction:

Set up the following proportion and solve for "x":

Now, in order to find the percent of the screen area occupied make the following division:

Step-by-step explanation:

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2 years ago

Essential: Solve the proportions<br> step by step

vazorg [7]

Answer:

The value of r= $\frac{-106}{47}$

The value of x= $\frac{83}{32}$

Step-by-step explanation:

Given that,

A) $\frac{2r-2}{7r+10} = \frac{9}{8}$

Now,

$\frac{2r-2}{7r+10} = \frac{9}{8}$

8(2r-2)=9(7r+10)

16r-16=63r+90

-16-90=63r-16r

-(16+90)=47r

-106=47r

r= $\frac{-106}{47}$

B) $\frac{x+4}{9} = \frac{3(x-2)-1}{5}$

Now,

$\frac{x+4}{9} = \frac{3(x-2)-1}{5}$

5(x+5)=9[3(x-2)-1]

5x+25=9[3x-6-1]

5x+25=9[3x-7]

5x+25=27x-63

25+63=27x+5x

83=32x

x= $\frac{83}{32}$

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3 years ago

What is the product of the polynomials below?

Anna35 [415]

The answer is letter C

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Answer:

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Step-by-step explanation:

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Use the greatest common factor and the distributive property to write and an equivalent expression: 20g+24h

n200080 [17]

4(5g+6h)

You xan remove four from each number, but no letters since they dont have any of the same.

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3 years ago