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Vika [28.1K]
4 years ago
9

I need help plez and thanks

Mathematics
2 answers:
erastova [34]4 years ago
8 0
It will take 3 hours.
slamgirl [31]4 years ago
4 0
I got 3 hours hope this helps
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Rafael is taking a test that contains a section of 12 true-false questions. how many of the possible groups of answers to these
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12! / (8! x 4!) = 495
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Find the values of x, y, and z. The diagram is not to scale.
Kruka [31]

we know that

The sum of the internal angles in the triangle must be 180 degrees

see the attached figure with letters to better understand the problem

Step 1

<u>Find the measure of the angle x</u>

In the triangle ABC

63\°+36\°+x\°=180\°

solve for x

99\°+x\°=180\°

x\°=180\°-99\°

x=81\°

therefore

<u>the answer Part a)  is</u>

the measure of angle x is 81\°

Step 2

<u>Find the measure of the angle z</u>

we know that

x+z=180\° --------> by supplementary angles

substitute the value of x

81\°+z=180\°

z=180\°-81\°

z=99\°

therefore

<u>the answer Part b)  is</u>

the measure of angle z is 99\°

Step 3

<u>Find the measure of the angle y</u>

In the triangle ACD

13\°+z\°+y\°=180\°

solve for y

13\°+99\°+y\°=180\°

112\°+y\°=180\°

y\°=180\°-112\°

y\°=68\°

therefore

<u>the answer Part c)  is</u>

the measure of angle y is 68\°

5 0
3 years ago
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pshichka [43]

Answer:

to be honest i need the points so srry

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
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