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3 years ago

What is the smallest degree of rotation that will map a regular 18 gon on to itself

Mathematics

1 answer:

natali 33 [55]3 years ago

5 0

Answer:

20°

Step-by-step explanation:

Rotating the figure through an angle equal to the central angle of one "sector" will do the required mapping. That is 360°/18 = 20°.

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Hellllpme!!!!! ASAP!

Vikki [24]

Answer:

Step-by-step explanation:

This notation says that x+x+x+x+37=69

This can be simplified to say 4x+37=69

6 0

3 years ago

Read 2 more answers

Nathan bought a cd for his friend. The length and width of the cd case is 4 18⁄25 inches. What is the area of the cd case?

ale4655 [162]

Answer:

Hence the area of CD bought by Nathan is <em>22.2784 square inches.</em>

Step-by-step explanation:

The length and width of a CD bought by Nathan is $4\frac{18}{25}=\dfrac{118}{25}$ inches.

As CD have the same length and width this means it will be of the shape of a square.

Hence, the area of CD is given by:

Area of CD=length×width

= $4\dfrac{18}{25}\times4\dfrac{18}{25}$

= $\dfrac{118}{25}\times\dfrac{118}{25}$

= $\dfrac{118\times118}{25\times25}$

= $\dfrac{13924}{625}$

= $22.2784$

Hence the area of CD bought by Nathan is 22.2784 square inches.

3 0

3 years ago

Factor each trinomial completely.<br> 4x^2 - 25b^2 and x^2 - 81

GenaCL600 [577]

Step-by-step explanation:

4x2 - 25b2

We can solve it by the squares so

(2x - 5b) (2x + 5b)

2) x2 - 81

The same case is here so

(x - 9) (x + 9)

8 0

3 years ago

Interesting facts about northeast

konstantin123 [22]

The Northeast is a geographical region of the United States of America bounded to the North by Canada. The Northeast is one of 4 regions defined by the Census Bureau for the collection and analysis of statisitics. Hope that helped!!

6 0

3 years ago

What answer to this question?

horrorfan [7]

Answer:

221

Step-by-step explanation:

13 x 17 = 221

4 0

3 years ago