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Solnce55 [7]
3 years ago
7

⚠️⚠️⚠️ I WILL MARK BRAINLIEST ⚠️⚠️⚠️

Mathematics
1 answer:
Ray Of Light [21]3 years ago
7 0

Answer:

I can only help with 5 and 6 which both are A.

Explanation:

that's because Cosine is adjacent to the angle (the angle being 30 degrees and the side next to it is 43mm) divided by the hypotenuse (longest side of a right triangle. The 50 mm). A way you can remember the sin, cosine and tangent is SOH CAH TOA. Sine=opposite over hypotenuse, Cosine = adjacent over hypotenuse, Tangent = opposite over adjacent. For the next one, it is the same principal. X is adjacent to 22 degrees and the other number is the hypotenuse so it has to be Cosine.

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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}

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6 0
3 years ago
7-41=<br><br> (-15)+33=<br><br> 62-84=<br><br> (-26)-14=
Gala2k [10]

Answer:

-34

18

-22

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Explanation:

8 0
3 years ago
What is the solution to this equation 1/2n^2+18=0
ololo11 [35]

Answer:

n = ±6 .

Step-by-step explanation:

A quadratic equation is given to us and we need to find out the solution of the given equation . The given equation is ,

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On simplyfing , we get ,

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This equals to ,

\rm\implies \boxed{\quad\blue{\rm n =\pm 6 }}

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