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klemol [59]
3 years ago
9

regular octagon rotates 360° about its center. How many times does the image of the octagon coincide with the preimage during th

e rotation?
Mathematics
2 answers:
qwelly [4]3 years ago
8 0

Answer:

8 times

Step-by-step explanation:

An octagon has eight sides of equal length and eight angles of same measure. So, If it is rotated 360 degrees about its center. It would coincide with all of its 8 sides. So, it will coincide with it's pre-image 8 times.

faltersainse [42]3 years ago
4 0

Answer:

Step-by-step explanation:

because A regular octagon is a closed figure with sides of the same length and internal angles of the same size. so if it is rotated 360 degrees it should coincide with its preimage after every 45 degrees.

so 360/45= 8 times

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Answer:

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Step-by-step explanation:

21 ÷ 3.5 = 6

3 0
3 years ago
Answer this question showing work. 2b − 7 ≥− 14 + 2b
jeka94

Answer:

No solution

Step-by-step explanation:

This answer has no solution, follow these steps to see how.

First, you add 7 on both sides.

Then you should have 2b > -7 +2b

You see how there is a 2b on both sides? this makes the problem unsolvable.

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4 0
3 years ago
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Find the slop of the line passing through the given points (2,3),(-1,-6)
professor190 [17]
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5 0
3 years ago
Someone please help me with this
Nataly_w [17]

Answer:

a.\ D=\dfrac{1}{5}t

b. 20 seconds

Step-by-step explanation:

Let D be the distance in miles and

t be the time in seconds and

s be the speed in miles/sec

Formula for Distance is given as:

Distance = Speed \times Time\\OR\\D=st

Given that:

Distance = 2 miles and

Time = 10 seconds

Putting the values in formula:

2=s\times 10\\\Rightarrow s =\dfrac{1}{5} \ miles/sec

<em>Answer a:</em>

Putting the value of s back in the formula to find the <em>direct variation equation </em>for the relationship between time and distance:

D=\dfrac{1}{5}t

<em>Answer b:</em>

Using the above formula and putting D=4\ miles:

4=\dfrac{1}{5}t\\\Rightarrow t =\bold{20\ seconds}

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