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tino4ka555 [31]
3 years ago
8

Real numbers are (closed/not closed) under multiplication.

Mathematics
1 answer:
Sveta_85 [38]3 years ago
7 0

thanks tho

<u>next time use ur head</u> Step-by-step explanation:

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Answer: 44 ft

Step-by-step explanation:

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BartSMP [9]
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2 years ago
Solve for a side in right triangles
Ket [755]

Answer:

2.33

Step-by-step explanation:

imagine a circle. its center is A, and it goes through B, so its radius is AB.

then it is important to know that the sum of all the angles in a triangle is 180 degrees.

one angle (at C) is 90. the angle at B is 25. so, the angle at A is 180 - 90 - 25 = 65 degrees.

more back to our circle.

in this circle the line CB is the sine of the angle at A multiplied by the radius.

and AC is the cosine of the angle at A multiplied by the radius.

we can ignore the orientation + and - of these functions, as we are only interested in the absolute length (and we can mirror the triangle, and all the angles and side lengths still stay the same).

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=> AC = cos(65)×5/sin(65) = 5 × (cos(65)/sin(65)) =

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3 0
2 years ago
Read 2 more answers
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