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dem82 [27]
3 years ago
15

What is the area of the following circle? use 3.14 for pi and label your answer in units squared or square units.

Mathematics
2 answers:
vesna_86 [32]3 years ago
5 0
153.86 units squared!!!!!!!!!!!!!!!!
Alenkinab [10]3 years ago
4 0

Answer:

153. 86 units squared

Step-by-step explanation:

3. 14 x 7^2= 153. 86

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erastovalidia [21]

All you need is the double angle identity:

\cos^2x=\dfrac{1+\cos2x}2

So we have

\cos^4x=(\cos^2x)^2=\left(\dfrac{1+\cos2x}2\right)^2=\dfrac{1+2\cos2x+\cos^22x}4

Apply the identity again to the squared term:

\cos^4x=\dfrac{1+2\cos2x+\frac{1+\cos4x}2}4=\dfrac{3+4\cos2x+\cos4x}8

6 0
3 years ago
First to answer gets something good ;)
lesya [120]

Answer:

should be the second one 75 + 20x <55 +44x

7 0
3 years ago
How to solve #55 I am confused
Viktor [21]
Use the formula 
p=4 x s
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4 0
3 years ago
Read 2 more answers
What is the solution to the equation? <br><br> 14g=154
irinina [24]

Answer:

g = 11

Step-by-step explanation:

14g = 154

You have 14g. 14g means 14 times g. You want g alone. To get 14 alone, since g is being multiplied by 14, you must do the opposite operation. The opposite of multiplying by 14 is dividing by 14. The rule with equations is that you must do the same operation to both sides. Divide both sides by 14.

14g/14 = 154/14

g = 11

7 0
3 years ago
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Which point could be removed in order to make the relation a function? {(0, 2), (3, 8), (–4, –2), (3, –6), (–1, 8), (8, 3)} Whic
myrzilka [38]
(3,-6) because you can't have two of the same x's in a function
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2 years ago
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