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3 years ago

5

Please help me explanation is not needed but would be very useful since I don’t understand this concept, thank you.

2 answers:

baherus [9]3 years ago

7 0

Answer:

56.25 degrees

Step-by-step explanation:

This is dealing with an adjacent and hypotenuse variable, so you use cosine. Since your want to find the angle, u have to use cos^-1 times 5 over 9. Because when you use cosine its adjacent over hypotenuse. cos^-1(5/9)

Akimi4 [234]3 years ago

3 0

Answer:

56.3°

Step-by-step explanation:

You first have to figure out what you are going to use to find Angle B ( tanФ, cosФ or sinФ).

In this case you would use CosФ because you are given "adjescent over hypotenuse." Hence, 5/9.

Once you plug in CosФ=5/9 into your calculator you will get the angle of B. Which is: ∠B= 56.2510114°. Lastly, you would round this answer to the nearest hundredth.

Hope this helped! If you have any questions feel free to comment them.

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3 years ago

Read 2 more answers

The set of natural numbers x that satisfy x + 8 = 5

Maksim231197 [3]

Answer:

The set of natural numbers can be denoted as: {} (null set) because no natural number will satisfy the given equation.

Step-by-step explanation:

Given equation:

$x+8=5$

To find the set of natural numbers that satisfies the above equation.

Solution:

In order to find the set of solutions for the equation, we will solve it for $x$

We have:

$x+8=5$

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$x+8-8=5-8$

∴ $x=-3$

Thus, we get only one solution for $x$ that satisfies the given equation but it is not a natural number. -3 is an integer.

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Thus, we can say the set of natural numbers that satisfies the equation is a null set {}.

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3 years ago