Answer: 40°
Step-by-step explanation: The formula for calculating the size of an exterior angle is: exterior angle of a polygon = 360 ÷ number of sides. So it's 360°÷9=40°
Answer: 18
Step-by-step explanation: 5m - 7 = 6m + 11
Solve for M
5m - 6m = 11+ 7
-m = 18
Divide both sides by -1
-m/-1 = 18/-1
m = -18
At those two x-intercepts, I know that x=2 and x=-2.
to get this, I know that there are two factors set to 0.
x+2=0 and x-2=0
so, if you multiply (x+2)(x-2)=y
then you will have standard form
x^2+2x-2x-4=y
y=x^2-4
Answer: the 1 with 6cm the area is 113.1 and the one with 11ft is 380.2
Step-by-step explanation: use this formula A=πr2
Answer:
Drew saves a distance of 
by taking the shortcut.
Step-by-step explanation:
Here is an image of the routes.
We have drawn it assigning the signs NSEW where N=North,S=South ,E=East and W=West.
Now the total distance covered by Drew = OA+AB+BC 
We see by joining C with O it has a shortcut.
And it forms a right angled triangle.
, 
at D.
By using Pythagoras theorem we can find the shortcut distance.
OC is the hypotenuse and 
So Drew saves 
of distance following the advice of his friend and opting for the shortcut route.
