Standard error for a sample proportion, p = 0.8, n = 1200
<span>The perimeter is 14.47
Since you have 3 vertices, the polygon you have is a triangle. The sides of the triangle will be XY, XZ, and YZ. Just use the pythagorean theorem to calculate the length of each side and then add the lengths together for the result.
Side XY = sqrt( (-1-3)^2 + (3-0)^2) = sqrt(16+9) = sqrt(25) = 5
Side XZ = sqrt ( (-1-(-1))^2 + (3-(-2))^2) = sqrt(0+25) = sqrt(25) = 5
Side YZ = sqrt( (3-(-1))^2 + (0-(-2))^2) = sqrt(16 + 4) = sqrt(20) = 4.47
Now add the length of each side together
5 + 5 + 4.47 = 14.47</span>
<span>1m +
35cm = .35m +
3m +
90cm =.90 m +
25mm = .025m +
</span>
<span><span>+ 1.0 m
+ 0.35m
+ 3.0 m
+ 0.90 m
+ 0.025m</span>
= 5.275 meters
</span>
The answer would be $42.4. $50 minus $10 is $40. Multiply that by 106% because of tax, and you get $42.4.
Hope this helped! :)
By Pythagoras theorem
let h be the length of hypotenuse
15^2+20^2=h^2
h^2=625
h=25
