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lakkis [162]
3 years ago
8

What is the domain of the function F(x) = 4 cos(2x+1)?

Mathematics
1 answer:
Veseljchak [2.6K]3 years ago
6 0

Answer:

Domain: (-inf, inf)

Range: [-4,4]

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Find the value of y.​
Bess [88]

Answer:

=6√3 the third option.

Step-by-step explanation:

We can use the Pythagoras theorem to find the value of y. We need two equations that include y.

a²+b²=c²

c=9+3=12

x²+y²=12²

x²=144 - y².........i (This is the first equation)

We can also express it in another way but let us find the perpendicular dropped to c.

perpendicular²= x²-3²=x²-9 according to the Pythagoras theorem.

y²=(x²-9)+9²

y²=x²+72

x²=y²-72....ii( this is the second equation

Let us equate the two.

y²-72=144-y²

2y²=144+72

2y²=216

y²=108

y=√108

In Surd form √108=√(36×3)=6√3

y=6√3

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3 years ago
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kirill115 [55]

Answer:

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Step-by-step explanation:

Hope this helps! (:

3 0
3 years ago
60 pts for the person that answer and brainiest
vodomira [7]

Answer:

the answer is b because it justifies why the theory of   evolution is a theory not a law.

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18.5

Step-by-step explanation:

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I need help now its due right now can anyone help me
cestrela7 [59]

Answer:

(2,-3)

Step-by-step explanation:

I thought you'd actually have to calculate it but I guess they just wanted to give you guys a graph lol

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