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Korolek [52]
2 years ago
5

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

Mathematics
2 answers:
baherus [9]2 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]2 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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Splitting up the interval [0, 6] into 6 subintervals means we have

[0,1]\cup[1,2]\cup[2,3]\cup\cdots\cup[5,6]

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So the integral is approximately

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Recall that

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so our sum becomes

\displaystyle\sum_{i=0}^5\left(\frac{2i+1}2\right)^2=\sum_{i=0}^5\left(i^2+i+\frac14\right)
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8 0
2 years ago
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DochEvi [55]

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Next, the rule with converting negative exponents into positive ones is x^{-m}=\frac{1}{x^m} . Apply this rule here:

7^{-2}=\frac{1}{7^2}=\frac{1}{49}

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<h2>------------------------------------------------</h2>

So an additional rule when it comes to exponents is x^{\frac{m}{n}}=\sqrt[n]{x^m}

In this case, your fractional exponent, x^9/7, would be converted to \sqrt[7]{x^9} . However, I had just realized you can further expand this.

Remember the rule I had mentioned earlier about multiplying exponents of the same base? Well, you can apply it here:

\sqrt[7]{x^9}=\sqrt[7]{x^7*x^2}=x\sqrt[7]{x^2}

Your final answer would be x\sqrt[7]{x^2}

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