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Furkat [3]
2 years ago
12

9m+3m= please solve step by step I need to submit now

Mathematics
1 answer:
Troyanec [42]2 years ago
8 0

Answer:

12m

Step-by-step explanation:

9+3=12

9m+3m=

12m

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Part B: In complete sentences, explain how a circle can be used to find the circumcenter of the triangle graphed below.
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Answer:

Step-by-step explanation:

<u><em>Part B:</em></u>

The center of the circumscribed circle around a triangle is equidistant from vertices of that triangle. To find the circumcenter need to draw at least two perpendicular bisectors to the sides of the given triangle. Point of intersect of them is center of the circumscribed circle.

<u><em>Part C:</em></u>

Coordinates of the midpoint of line BC ( y = - 1 ) are

( \frac{-6+2}{2} , \frac{-1-1}{2} ) = <em>( - 2 , - 1 )</em> and the equation of the line ⊥ to BC is <em>x = - 2</em>

Because BC is ║ to x-axis and m∠A is 90° , the center of the circle is midpoint of BC and r = \frac{BC}{2} = 4

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1 year ago
Solving a _____ is the process of calculating unknown side lengths or angle measures of a triangle if certain of the side length
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ANSWER

C) Triangle

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Solving a triangle is the process of calculating unknown side lengths or angle measures of a triangle if certain of the side lengths and/or angle measures are known.

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If the triangle has a right angle, then this is a special case, where we can use the trigonometric ratios and the Pythagoras theorem to find the unknown angles and sides.
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PLEASE HELP ME QUICKLY!!! Given that N:{1,2,3,5,8,13} and M:{−9,−8,−6,−4,−2,4}, which statements about N and M are true?
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Answer:

The intersection of N and M contains only those elements that are in both N and M.

The intersection of N and M is ϕ.

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Step-by-step explanation:

Given

M = { 1, 2, 3, 5, 8, 13}

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Now let us see each statement one by one.

The intersection of N and M contains only those elements that are in both N and M.

The statement is true because by definition intersection of two sets consists of common elements of both sets.

The intersection of N and M is ϕ.

The statement is true. As there is no common element in both sets.

The intersection of N and M is {−9,−8,−6,−4,−2}.

The statement is false because there is not common element in M and N.

N∪M=∅

The statement is false as the union consists of elements of both sets so it can't be empty.

​N∩M=∅

True. Because no common element so intersection will be an empty set..

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