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tia_tia [17]
3 years ago
9

Can you help me solve it​

Mathematics
1 answer:
Serhud [2]3 years ago
4 0

Answer:

1. y

2 x

3 a

4 b

Step-by-step explanation:

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astra-53 [7]
You can use the measure of 112 on the similar shape to find b, as they are same side exterior angles. From there, you can find both a and c, because a/b and b/c are supplementary angles. 

a = 68 degrees

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Solve 0.7(5x+15)=2.9-(x+3)
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0.7(5x+15)=2.9 -(x+3)
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Check:
0.7(5(-2.3555...) +15) = 2.9 -(x+3)
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3 years ago
Factoring , <br> a² +4a - 5
givi [52]

the factors of the term a^2+4a-5 are (a-1)(a+5)

Step-by-step explanation:

We need to find factors of the term: a^2+4a-5

For finding factors:

We need to break the middle term such that their product is equal to product of first and last term and their sum is equal to middle term

Breaking the middle term and finding factors:

a^2+4a-5

=a^2+5a-a-5

=a(a+5)-1(a+5)

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So, the factors of the term a^2+4a-5 are (a-1)(a+5)

Keywords: Finding factors

Learn more about finding factors at:

  • brainly.com/question/9045597
  • brainly.com/question/3739260
  • brainly.com/question/13168205

#learnwithBrainly

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No they're not proportional, and it's four*.
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120^ is the answer for this problem
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