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Nookie1986 [14]
3 years ago
10

Find the value

Mathematics
1 answer:
Vaselesa [24]3 years ago
4 0

Answer:

cosC = BC/AC

\cos(c)  =  \frac{15}{39}

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17,496 hope this helps

Step-by-step explanation:

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3 years ago
Can anyone help me with this question?
Andreyy89

Answer:

x= 60°, y = 80°, z = 40°

Step-by-step explanation:

Look at the line substending 40° and Z°; you would see that both lines are parallel and so their angles are they the same.

Hence z= 40° { corresponding angles of parallel lines}

Similarly;

Look at the line substending 60° and x°; you would see that both lines are parallel and so their angles are they the same.

60° = x° { corresponding angles of parallel lines}

Now looking at the angle between x and y; let's call the angle between them r

And you would observe closely that r = z° = 40°{ vertically opposite angles are equal}

Note that x + r + y = 180°{ angle on a straight line}

y = 180° - ( x + r)

y = 180 - (60+40)

y = 180° - 100°

= 80°

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3 years ago
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Answer:

definition the set of positive real number which greater than 0 are the nonnegative number. for ex=(1,2,3...10)

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3 years ago
Suzannes school are painting a rectangular mural outside the buillding that will be 15 feet by 45 feet the students are also goi
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Answer:

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Step-by-step explanation:

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