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Svetradugi [14.3K]
2 years ago
6

Solve the following problem.

Mathematics
2 answers:
Orlov [11]2 years ago
7 0

Answer: C

Step-by-step explanation:

Pythagorean's Theorem can only be used for right triangles. For the triangle above, the Law of Cosines must be used. The Law of Cosines can be used when you're given two sides and an angle. The general formula is below:

x^2=a^2+b^2-2abcos(theta)

For the triangle above:

a = 23

b = 20

∅ = 47°

Therefore:

x=\sqrt{23^2+20^2-2*23*20*cos(47)} =\sqrt{529+400-920cos(47)}=\sqrt{929-920cos(47)} =17.37

Elza [17]2 years ago
5 0

Answer:

X = 30

Step-by-step explanation:

20^2 + 23^2 = x^2

400 + 529 = x^2

929 = x^2

√929 = √x^2

X = √929

X = 30.48

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Answer:

21,755.8

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To solve this equation, we must first find 407% of 60.

To do this, place the percent over 100 (fraction form), then, multiply it by the number you're finding the percentage of.

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