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OLga [1]
2 years ago
6

What is the answer to 21-3c if c=7

Mathematics
2 answers:
Tema [17]2 years ago
5 0

Answer:

0

Step-by-step explanation:

Anna007 [38]2 years ago
5 0

Answer:

0

Step-by-step explanation:

23-(3x7)

u plug in 7 to the c

then 3 x 7 = 21

21- 21 = 0

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Which regular polygon has a minimum rotation of 45 degrees to carry the polygon onto itself?
lubasha [3.4K]

Answer:

Hence, a regular polygon that has a minimum rotation of 45 degrees to carry the polygon onto itself is:

A. octagon.

Step-by-step explanation:

We know that the for a regular polygon with 'n' sides the minimum rotation that can carry the polygon onto itself is:

\dfrac{360\degree}{n}

Here we are given the minimum angle of  rotation such that polygon is transformed to itself as 45 degree.

i.e. we have:

\dfrac{360}{n}=45\\\\n=\dfrac{360}{45}\\\\n=8

Hence, the number of sides of a polygon are 8.

Hence, the polygon is:

A. octagon.

( Since a polygon with 8 sides is called a octagon)

7 0
3 years ago
Read 2 more answers
06:20+35min=<br><br>06:23+ _ min=07:00
Katarina [22]

Answer:

27 min i think

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
Evaluate 6x - 3, when x = 2 14
Rudiy27

Answer:

6x214=1284

1284-3 is 1281

Step-by-step explanation:

7 0
3 years ago
Which of the following is the result of expanding 4 £ n=1 (2n-3)
geniusboy [140]

Answer: 8

Step-by-step explanation: the given expression is 2n-3

so when n=1, we will get, 2(1)-3=2-3=-1

when n=2, we will get, 2(2)-3= 4-3=-1

when n=3, we will get 2(3)-3= 6-3=3

when n=4, we will get 2(4)-3 = 8-3=5

so the required result of expansion is -1+1+3+5=8

answer is 8.

hope that helped!

3 0
3 years ago
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otez555 [7]
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2 years ago
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