Part a: hexagon is a six sided polygon.
Part b: dodecagon is a 12 sided polygon.
Part c: decagon is a 10 sided polygon.
Explanation:
Part a: The given polygon consists of 6 sides.
Hence, a polygon with 6 sides is called as hexagon.
Part b: The given polygon consists of 12 sides.
Hence, a polygon with 12 sides is called as dodecagon.
Part c: The given polygon consists of 10 sides.
Hence, a polygon with 10 sides is called as decagon.
Assume that the number is n.
sum of twice the number and 15 means that you will first multiply the number by 2 then add 15.
the equation us:
2n + 15 = -42
2n = -42-15
2n = -57
n = -28.5
Hey there!
4y + 2x - y + 8
= 4y + 2x - 1y + 8
COMBINE the LIKE TERMS
= (4y - 1y + (2x) + (8)
= (4y - y) + (2x) + (8)
= (2x) + (4y - y) + 8
= 2x + 3y + 8
Therefore, your answer is: 2x + 3y + 8
Good luck on your assignment and enjoy your day!
~Amphitrite1040:)