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Georgia [21]
3 years ago
12

Abcd is a parallelogram find ab and bx.

Mathematics
1 answer:
Olin [163]3 years ago
6 0
In a parallelogram, opposite sides have the same length. 
3x + 9 = 5x -5
group like terms on one side
9 + 5 = 5x -3x
14 = 2x
x is 7.
Since AB is 5x -5 
AB = 5(7) -5
AB = 30.

BX is half of the line DB. So BX = DX
5y = 7y - 10
10 = 7y -5y
10 = 2y
y =5.
Since BX = 7y - 10
BX = 7(5) -10
BX = 25
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Answer:

y = x

Step-by-step explanation:

We can use slope-point form.

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Step-by-step explanation:

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Alborosie

Answer:

a = $17.25

Step-by-step explanation:

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(4). Simplifying polynomials, help pls:) brainliest involved
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Answer:

Explanation:

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Let's identify some like terms below.

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Here you can see that -4x and 9x are like terms. When we combine (add) -4x and 9x, we get 5x. So let's write 5x instead:

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Let's do the same thing with the x-squared terms:

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Now there are no like terms left. Our last step is to organize the terms so that x is written in descending power:

f(x)=−5x4−9x2+5x−7

Step-by-step explanation:

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