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BabaBlast [244]
3 years ago
14

I need help with this anybody know it? 3(2n-7)=9

Mathematics
1 answer:
Ksivusya [100]3 years ago
6 0

Answer:

5

Step-by-step explanation:

3(2n-7)=9

^        ^

6n-21=9

   <u>+21  +21</u>

 <u>6n</u>=<u>30</u>

  6     6

n=5      :)

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A triangle has sides with lengths of 43 millimeters, 52 millimeters, and 65 millimeters. Is it a right triangle
Mrrafil [7]
Use pythagora's theorem to test if it is a right triangle

c^2 = a^2 + b^2
65^2 = 52^2 + 43^2
4225 = 2704 + 1849
4225 =/= 4553
therefore it is not a right triangle as it does not comply to pythagora's theorem
7 0
3 years ago
HELP!!
WITCHER [35]

The sum of all interior angles of a triangle is 180° thus the measure of the exterior angle m∠K is 102° so option (B) is correct.

<h3>What is a triangle?</h3>

A triangle is a 3-sided shape that is occasionally referred to as a triangle. There are 3 sides and three angles in every triangle, some of which may be the same.

Triangle is a very common figure to deal with in our daily life.

It is known that the sum of all three angles inside a triangle will be 180°.

So,   m∠A +  m∠B +  m∠C = 180°

m∠C = 180° - 58° -  44°

m∠C = 78°.

The exterior angle of C = 180- 78 = 102°.

Hence "The sum of all interior angles of a triangle is 180° thus the measure of the exterior angle to m∠K is 102°".

For more about triangles,

brainly.com/question/2773823

 

#SPJ1

 

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Answer:

It would be 9.17%

Step-by-step explanation:


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3 years ago
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5q + 3 = 3h solving for q
lapo4ka [179]

Answer:

Im not sure tbh, but go to this website called Symbolab, and just type it in and it gives you a step by step process om how to solve it! ( :

Step-by-step explanation:

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3 years ago
Please help I will mark BRAINLIST
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Mean=8.1 (add all numbers and divide by how many there r)
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2 years ago
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