Answer In a poligon of n sides can be drawn n-3 diagonals from each vertex.
Explanation The triangle is the first closed polygon, which has three sides and it is not possible to draw any diagonal from a vertex. In a polygon with four sides it is already possible to draw a diagonal from each vertex to the opposite one. Then diagonals = n-3.
Answer:
<em><u>x = 30</u></em>
Step-by-step explanation:
2x + x = 90
3x = 90
x = 90/3
x=30
Answer:
Its C (-9,-2)(-2,-1)(-1,0)(0,1)(7,2)
Step-by-step explanation:
Answer:
6.75
Step-by-step explanation:
use the proportion:
1) 20:9=15:x
2) 20x=135
3) x=6.75
First you need to figure out the cost of the skateboard after the discount but before the sales tax. By doing 100%-12% you figure out how much of the original cost you are paying 88%. Then you multiply 79.99(original cost) and 88%(how much you pay) which gets you 70.39. Then you figure out the sales tax by multiplying 70.39 by 6.75% which gives you 4.75(the sales tax). And the last thing you need to do is add the cost before tax(70.39) and the tax(4.75).
The skateboard costs $75.14
