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mario62 [17]
3 years ago
10

Can you help me with this I need it done by tomorrow thank you

Mathematics
2 answers:
mr Goodwill [35]3 years ago
3 0

Answer:

x = 17deg

Step-by-step explanation:

angle DCE = angle ACB (vertically opposite angles)

therefore,

x + 100 = 4x + 49

3x = 51

x = 17deg

elena-14-01-66 [18.8K]3 years ago
3 0

Answer:

X=

Step-by-step explanation:

First you have to divide the shape into to triangles. Triangle CED and triangle ACB.

Second you have to find what angle C is in the triangle ACB. For this you'll have to:

Find out which of the sides are which. For triangle ACB, side CB is the hypotenuse, CA and AB are adjacent.

The formula we use is a^{2} +b^{2} =c^{2}.  a and b are adjacent and c is hypotenuse.

When you found what angle C is, you can go on and to the second triangle same theorem applies to the second triangle a^{2} +b^{2} =c^{2}. At this stage you will already know two angles, 100 and c, so finding E using this formula will be easy

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Michael's rock collection is 27% igneous rock. Half of his collection is sedimentary rock, while the rest is metamorphic rock. H
rjkz [21]

Answer:

23% of Michael's rock collection is metamorphic rock.

Step-by-step explanation:

We are given the following in the question:

Percentage of igneous rock in the collection = 27%

Percentage of sedimentary rock in the collection = 50%

Remaining rocks are metamorphic rock.

Total collection = 100%

Percentage of metamorphic rocks =

=100\%-(27\%+50\%)\\=100\%-77\%\\=23\%

Thus, 23% of Michael's rock collection is metamorphic rock.

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4 years ago
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