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aivan3 [116]
3 years ago
5

What’s the cosine of

Mathematics
1 answer:
Vsevolod [243]3 years ago
4 0

Answer:

√23/√45 or √23/3√5

Step-by-step explanation:

Cosine is adjacent over hypotenuse. Angle W has an adjacent side of WU(√23) and WV .You know the adjacent but not the hypotenuse, so you will use the formula a^2+b^2=c^2 to find the hypotenuse. Plug in the sides for A and B -> (√23)^2+(√22)^2=c^2. Simplify it --> 23+22=c^2 --> 45=c^2. Solve for C alone (not c^2). √45=c. Then use the cosine formula (adjacent/hypotenuse) to plug in the numbers.

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3)Find the Circumference of this circle.<br> 9 in
mr Goodwill [35]

Answer:

56.52 in

Step-by-step explanation:

  1. 2πr = C
  2. 2 × 3.14 × 9 = C
  3. 2 × 3.14 = 6.28
  4. 6.28 × 9 = 56.52 in

I hope this helps!

4 0
3 years ago
Which postulate or theorem justifies this statement: ∠ 11 + ∠ 10 = 180°
Trava [24]

Answer:

Same-side Interior Angles theorem justifies ∠ 11 + ∠ 10 =180°

Step-by-step explanation:

To Prove:

∠ 11 + ∠ 10 =180°

Proof:

Consider lines are  Parallel,then

Corresponding Angles are Equal

∴ ∠ 10 = ∠ 12  say (equation 1)

Now by Linear Pair postulate we have,

∴ ∠ 11 + ∠ 12 = 180° say (equation 2)

Now by replacing ∠12 by ∠ 10 from equation 1 in equation 2 we get

∴ ∠ 11 + ∠ 10 = 180°

Hence proved the above statement.

7 0
3 years ago
Marcus wants to buy a PS5 and some digital games. The console cost $725 and he plans to buy games that cost $45. He only has $98
wariber [46]
I don’t know your question sooo I’m just going to go based on what I know.

980 - 725 = 225
$225 is how much you have left to buy games

In the end you can only buy about 3 games with $40 left
7 0
3 years ago
If g(x)=3x-11, what is x is g(x)=289
Liula [17]

Answer:x=100

Step-by-step explanation:

Since you know that g(x)=3x-11 all you have to do is substitute that into g(x)=289. So you get 3x-11=289. To get x you have to add 11 on both sides.

3x-11=289

+11 +11

----------------

3x = 300

Divide 3 on both sides to get x by itself

3x =300

---- -------

3 3

x=100

8 0
3 years ago
H/5 = 5.1<br> What is H?
inysia [295]
This basically says all the steps ! If you have any questions just tell me :)

5 0
3 years ago
Read 2 more answers
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