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Triss [41]
3 years ago
14

Three polygons have been divided

Mathematics
1 answer:
DiKsa [7]3 years ago
4 0

The relationship between the sides of the polygon and the triangle follows an arithmetic sequence

The expression that represents the number of triangles is (c) n - 2

From the diagrams, we have:

Sides           Triangles

  5                    3

  6                    4

  8                    6

The above can be represented as functions as follows:

f(5) = 3

f(6) = 4

f(8) = 6

Express 6 as 8 - 2

f(8) = 8 - 2

Express 8 as n

f(n) = n - 2

So, the expression that represents the number of triangles is (c) n - 2

Read more about sequence and patterns at:

brainly.com/question/24050043

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Answer:

27 hours

Step-by-step explanation:

8 0
3 years ago
-7n - 15 ≥ 21? <br><br> n ≥ -4 <br> n ≥ 7.2 <br> n ≤ -4 <br> n ≤ 4
ollegr [7]

               - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

\diamond\large\textsf{\textbf{Question:-}}}}

-7n-15≤21. find n

\diamond\large\textsf{\textbf{\underline{\underline{Answer and how to solve:-}}}}

 ❖ Add 15 to both sides:-

      -7n≤21+15

        -7n≤36

❖ Now divide by -7 on both sides:-

               n≥-5.14 or

                n≥-5

The inequality sign changed because we divided both sides by a negative number.

<h3>Good luck.</h3>

        - - - - - - - - - -- - - - - - - - - - - - - - - - - - - - - - - -

7 0
2 years ago
Use the Distributive Property to simplify the expression 6 • 68.
Sunny_sXe [5.5K]

Answer:

Step-by-step explanation:

6*68=408

------------------

48/10=4.8

----------------

3.8=x/7.7

x=3.8*7.7x

x=29.26

---------------

x+5.1=13.4

x=13.4-5.1

x=8.3

---------------

8x=64

x=64/8

x=8

--------------

22=m+1

m=22-1

m=21

----------

45-4x for x=5

45-4(5)=45-20=25

---------------------------

256, 64, 16, 4

7 0
3 years ago
Martin's running ability is measured by this proportion:
jek_recluse [69]

Answer:

A = 13 B =0 = 1/2   This way x in a graph can be his start running ability (time) each A value applied will divide by 1/2 to make 6.5 and when x = 21 then y can be 7 with the AB equation above as 13 x 1/2 = 6.5. add multiple 0 doesn't occur because we start with x value 21 to show the starting value. Alternately x= 137 and y = 0. Then the graph can go up or down when his running value changes as a negative decrease 137 - b = -? and a positive increase will show increase 137+b = +?.

Step-by-step explanation:

4 0
4 years ago
Read 2 more answers
There are 60 people on a bus to fix so that my children if there are 15 boys how many girls are there
Fynjy0 [20]

Answer: 45

Step-by-step explanation:

60 minus 15 equals 45( there is 45 girls)

7 0
3 years ago
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