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astra-53 [7]
3 years ago
9

I need help with this ​

Mathematics
1 answer:
Zanzabum3 years ago
7 0
3 + 3 + 3 + 3 + 5 + 5 = 22

the perimeter is 22 cm
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In your biology class, your final grade is based on several things: a lab score, scores on two major tests, and your score on th
Artemon [7]

Answer:

72.51

Step-by-step explanation:

Given that :

Lab score % = 23%

Each Major test % = 22.5%

Final exam % = 32%

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Lab score = 96

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Second major test = 62

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Hence,

Weighted average = Σ(weight % * score)

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USPshnik [31]

Answer:

x = 55

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Step-by-step explanation:

Since all three sides are equal, as indicated by the lines on the sides, all three angles are equal

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180/3 = 60

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x+5 = 60

Subtract 5 from each side

x +5-5 = 60-5

x = 55

y-10= 60

y-10+10 = 60+10

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3 years ago
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Prove that a triangle with two congruent altitudes is an isoceles triangle.
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Isosceles triangles have 2 congruent base angles

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Find the measurement of arc JL <br> PLLLLLLSSSS HELP 100 points
aalyn [17]

Answer:

108

Step-by-step explanation:

Hey There!

So the arc is equal to its corresponding angle

We are given the angle of KL which is 30 so all we need to do is find the length of arc JK

The angles given and the missing angle are supplementary angles meaning that they will add up to equal 180

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Now we just add arc JK and arc Kl

30+78=108

so arc JL is equal to 108

3 0
2 years ago
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