Using a 21 sided polygon as a base,complete the following table:

How many lines of reflectional symmetry does an equallaterial triangle have

Law Incorporation [45]

From what i can tell, it would have Three Lines of Reflectional Symmetry due to its three vertices

7 0

2 years ago

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The pizza below has been cut with 3 diameters what is the m AB PLEASE HELP

Drupady [299]

Answer:

79

Step-by-step explanation:

see which ones are vertical to each other and since they are vertical to each other they are the same degree then and all of the numbers you already have and the answer from that subtract it from 360 and them divide it by 2 .

64+64=128

37+37=74

128+74=202

360-202=158

158÷2=79

8 0

2 years ago

What is 4.6 × 108 cm/min in meters per hour? A. 2.76 × 10^8 m/h B. 2.76 × 10^10 m/h C. 7.67 × 10^6 m/h D. 7.67 × 10^8

siniylev [52]

$1m=100cm\to1cm=0.01m\\1h=60min\to1min=\frac{1}{60}h\\========================\\\\4.6\times10^8\ cm/min=4.6\times10^8\times\frac{0.01m}{\frac{1}{60}h}=4.6\times10^8\times0.6\ m/h\\\\=\boxed{2.76\times10^8\ m/h}\\\\Answer:\fbox{A.}$

7 0

3 years ago

Simplify each expression by distributing and combined bf like terms (SHOW WORK) please

GarryVolchara [31]

Answer:

c - 39

Step-by-step explanation:

Given,

-4 (8 - c ) - (3c + 7 )

= -4 ( -c + 8 ) - (3c + 7 )

= 4c - 32 - ( 3c + 7 )

= 4c - 32 - 3c - 7

= ( 4 - 3 )c + ( -32 - 7 )

= c + ( -32 - 7)

= C - 39

hope this answer helps you dear! take care!

8 0

2 years ago

Write the equation of the line that is perpendicular to y = -5x + 1 and passes through the point (2,-1). slope intercept equatio

motikmotik

Answer:

$y = \frac{1}{5} x - \frac{7}{5}$

Step-by-step explanation:

Look at graph above⤴⤴⤴

Hope this helps :)

8 0

2 years ago