3 years ago

22) Find x and y in each figure.

Mathematics

1 answer:

Maurinko [17]3 years ago

4 0

Answer:

x= 10, y= 15

Step-by-step explanation:

because alternate interior angles are congruent

8x -10 = 7x

8x -7x = 10

x = 10

because straighht line form 180°

6y+20 +7x = 180

6y +20 +70 = 180

6y = 180 -90

y=90/6 = 30/2 = 15

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Simplify -4(-8x-8) in distributive property

frosja888 [35]

Answer:

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2 years ago

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2 years ago

This rational expression is nonequivalent. 5x / 25x^4 ; x^3 / 5x^15<br> True or false?????

FromTheMoon [43]

It is nonequivalent. Figure it out this way. Think about what number has to be multiplied by both the numerator and the denominator of $\frac{5x}{25x^4}$ to get to $\frac{x^3}{5x^15}$ . It has to be the samee number for the one expression to be equivalent to the other. To get from 5x to x^3, we have to multiply by 1/5x^2. When we do that we get x^3. Good. Now we have to multiply the denominator by the same thing, 1/5x^2. $25x^4(\frac{1}{5}x^2)=5x^6$ . As you can see, they are not equivalent.