3 years ago

What is the perimeter of quadrilateral ABCD?

Mathematics

1 answer:

saveliy_v [14]3 years ago

7 0

Answer:

18 + √26

Step-by-step explanation:

You will have to use distance formula $d = \sqrt{(x2-x1)^{2} + (y2-y1)^{2}}$ between all 4 points to solve this. Once you have found the lengths between the points, you can add them all together. When you add them all together you should get 18 + √26 as your answer.

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To rewrite the expression ab+a+b+1, Jozelle first writes (ab+a) + (b+1). What property justifies this?

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Answer:

I believe it is associative property of addition or commutative

Step-by-step explanation:

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3 years ago

3x+30+x=10+2x+5x+2 <br> i need help fast

kupik [55]

Answer:

x=6

Step-by-step explanation:

Group Like Terms:

3x+x+30=10+2x+5x+2

Add similar elements 3x+x=4x:

4x+30=10+2x+5x+2

Add similar elements 2x+5x=7x:

4x+30=10+7x+2

Group like terms:

4x+30=7x+10+2

Add the numbers 10+2=12:

4x+30=7x+12

Subtract 30 from both sides:

4x+30-30=7x+12-30

Simplify:

4x=7x-18

Subtract 7x from both sides:

4x-7x=7x-18-7x

Simplify:

-3x=-18

Divide both sides by -3:

$\frac{-3x}{-3} =\frac{-18}{-3}$

Simplify:

x=6

Hence, the correct answer is 6

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2 years ago

There are liquids of different densities together in a container. What will happen to the liquid with the lowest density?

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It will bubble out as a gas

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4 years ago

7.)There are 120 students in 7A and and there are 115 students in 7B]

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Answer:

$420 dollars without the 20% reduction

Step-by-step explanation:

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