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Reptile [31]
3 years ago
9

I need help with this one question 8r - 5q = 3 solve for q how do i go about this

Mathematics
1 answer:
KATRIN_1 [288]3 years ago
6 0
8r - 3 = 5q --> q = (8r - 3)/5
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An exterior angle of a regular convex polygon is 40°. What is the number of sides of the polygon?
seraphim [82]

Answer:

option B

Step-by-step explanation:

Sum of interior angles of a polygon with n sides:

                                                                          = (n - 2 )\times 180

Therefore, Each \ interior \  angle = (\frac{n - 2}{n} )\times 180

Sum \  of \  one \  of \  the  \ interior \  angle \  with  \ its  \ exterior \  angle \  is \  180^\circ

                      [ \ because \ straight \ line \ angle = 180^\circ \ ]

That is ,

Exterior \ angle + Interior \ angle = 180^\circ\\\\40^ \circ + (\frac{n-2}{n}) \times 180  = 180^\circ\\\\40 n + 180n - 360 = 180n\\\\40n = 180n - 180n + 360 \\\\40n = 360 \\\\n = 9

OR

Sum of exterior angles of a regular polygon = 360

Given 1 exterior angle of the regular polygon is  40

Therefore ,

               n \times 40 = 360\\\\n  = \frac{360}{40} \\\\n = 9

8 0
2 years ago
A class quiz has 5 true or false questions the correct answers are t,t,f,f,
raketka [301]
I’m not sure what you are trying to say in this problem?
8 0
2 years ago
Evaluate 2^5/2^2 i need some help lol
seraphim [82]
2^5/2^2 = 2^(5-2)
= 2^3
= 8
8 0
3 years ago
Read 2 more answers
(7-4) + 17 / -14 + 2 x 5
Yuliya22 [10]

Answer:

165/14

Step-by-step explanation:

(7-4) + 17 / -14 + 2 x 5

3 + 17/-14 + 2 x 5

3 - 17/14 + 2 x 5

3 - 17/14 + 10

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8 0
3 years ago
Which of the following is equivalent to 2:1​
Len [333]

Answer:

use m a t h w a y

Step-by-step explanation:

put it all together and they will give you opitions

7 0
3 years ago
Read 2 more answers
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