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a_sh-v [17]
3 years ago
11

if a 12 - sided regular polygon rotates about its center, at which angle of rotation will the image of the polygon coincide with

the preimage?
Mathematics
1 answer:
Firdavs [7]3 years ago
4 0
It needs to rotate about it's center 1/12th of a full circle (i.e 1/12th of 360 degrees)

360/12 = 30

<u><em> . . . angle = 30 degree rotation</em></u>
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The length of a rectangle is twice its width. The Perimeter is 42 cm. Find the length of each side.​
lakkis [162]

Answer:

A) L = 2*W

B) 2L + 2W = 42

We'll put Equation A) into B)

2*2W + 2W = 42

4W + 2W = 42

6W = 42 cm

Width = 7 cm

Length = 14 cm

Step-by-step explanation:

4 0
3 years ago
A direct variation function contains the points (2, 14) and (4, 28). Which equation represents the function?
lara [203]

Answer:

y=7x

Step-by-step explanation:

we know that

A relationship between two variables, x, and y, represent a proportional variation if it can be expressed in the form y/x=k or y=kx

we have the points (2,14) and (4,28)

Find out the constant of proportionality k

k=y/x                      

For (2,14) ----> k=14/2=7

For (4,28) ----> k=28/4=7

so                              

the value of k=7            

therefore                                          

The equation  is                                                    

y=7x                

3 0
3 years ago
Read 2 more answers
Find the slip of the line through each pair of points (11,6),(14,17)
kenny6666 [7]
I’m assuming you’re asking for the slope which is 3/4
3 0
3 years ago
A Russian blue kitten costs $150 more than Manx kitten 9 blue kittens and 8 Manx kittens costs. Total of 14,100 write down a alg
Dmitriy789 [7]

Answer:

The equations 9x+8y=14100 and x = y+150 are in the simplest form.

Step-by-step explanation:

Given that:

Russian blue kitten costs $150 more than Manx kitten.

Cost of 9 blue kittens and  8 Manx kittens = $14100

Let,

x be the price of one Russian blue kitten.

y be the price of one Manx kitten.

According to given statement;

9x+8y=14100

x = y+150

Hence,

The equations 9x+8y=14100 and x = y+150 are in the simplest form.

5 0
3 years ago
Can someone help with this ??
White raven [17]

Answer:

D

Step-by-step explanation:

Range is the least number (50) subtracted from the greatest number (90)

90-50 = 40 (range)

The most dots is at 70 and the chart is symmetrical.

3 0
3 years ago
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