Answer:
21
(2,14)
14/2=7
14+7=21
21 is final answer
Erika had a 95% chance of guessing wrong
20 can be seen as 100%
the % will go down by 5's because of the original number
.5*20=
This will give you a 95% success rate.
Answer:
Step-by-step explanation:
a). Given equation is y = 3x - 4
Table for the input-output values is,
x -1 0 1 2 3
y -7 -4 -1 2 5
Now we can plot these points on the graph (graph attached).
b). Equation is y = -2x + 3
Table for the input-output values will be,
x -1 0 1 2 3
y 5 3 1 -1 -3
Answer:2.21
Step-by-step explanation:I used a calculator
Answer:
option B
Step-by-step explanation:
Sum of interior angles of a polygon with n sides:



![[ \ because \ straight \ line \ angle = 180^\circ \ ]](https://tex.z-dn.net/?f=%5B%20%5C%20because%20%5C%20straight%20%5C%20line%20%5C%20angle%20%3D%20180%5E%5Ccirc%20%5C%20%5D)
That is ,

OR
Sum of exterior angles of a regular polygon = 360
Given 1 exterior angle of the regular polygon is 40
Therefore ,
