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Svetlanka [38]
3 years ago
15

What is the area of the following circle?

Mathematics
1 answer:
satela [25.4K]3 years ago
8 0

Answer:

This is the answer of your question.

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Can anyone please help : show that cos^{2} (θ)= 1 + cos(2θ) / 2 , using the compound angle formula
iragen [17]

Answer:

Below

Step-by-step explanation:

Let's prove that cos^2(O) = 1+ cos(2O)/2

We khow that cos(2O) = 2 cos^2-1

● cos(2O) = 2 cos^2-1

Add one to both sides:

● cos(2O) +1 = 2 cos^2-1+1

● cos(2O) +1 = 2 cos ^2

Divide both sides by 2

● [cos(2O)+1]/2 = cos^2

6 0
3 years ago
2+2<br><br> it’s weird i forgot what it is
Molodets [167]

Answer:

4.

Step-by-step explanation:

2+2=4

4 0
3 years ago
Read 2 more answers
1. Complete this statment: A polygon with all sides the same length is said to be____
Katen [24]

Answer:

Q1. Regular (A)

Q2. 105° (C)

Q3. x=45°

Step-by-step explanation:

Q1. A regular polygon is a polygon with all sides and angles equal.

Q2. The sum of the measure of exterior angles of a polygon is always 360°. Therefore,  360°-255°=105°

Q3. 148°+112°+(2x+10)°+(2x)°+90°= Sum of angles in a pentagon.

<u><em>Note</em></u>: The square at the fifth angle shows that its a right angle which is 90°. Also all the angles are equal to the sum of angles in a pentagon 'cause the polygon has 5 sides ( a pentagon).

Sum of interior angles of a polygon is: (n-2)180°. Where "n" is the number of sides of the polygon.

Therefore the sum of interior angles is (5-2)180°=540°

solving the equation you have;

360°+4x=540°

4x=540°-360°

4x=180°

x=180°/4

x=45°

therefore x=45°

8 0
3 years ago
Can someone please help me with this problem !!! ASAP PLEASE NEED THE HELP !!
Misha Larkins [42]
I would say A. is the correct answer. Definitely a weird one. Hope this helps!
8 0
3 years ago
PLEASSSSSEEE NEED HELP ASAP ALOT OF POINTS BIGGG POINTS PLEASSSS
Elena-2011 [213]
2. x = 8, -4
|x-2|
2 * x-2=12
2x-4=12
2x=16
x=8
-4 - 2 = -6
-6 x 2 = 12
3 0
3 years ago
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