Do the area of the circle as a whole minus (72/360 x radius^2) and then minus the other grey area.
48x0.2= $9.6
$48-9.6=$38.40 Her friend is incorrect.
40/48 =0.83 or about 83% So, in this case she only got 17% off. :)
<span>Hope I helped </span>
Answer: This is a linear
Step-by-step explanation:
If you graph these out as coordinates on desmos as (0,2) (1,5) (2,10) (3,17) the points form a straight line which is linear as shown.
Answer:
a.b=[-1]
Step-by-step explanation:
This is a dot product of a and b
a.b =[6,-2,3].[2,5, -1] = [12-10-3] =[-1]
To find the decreased percentage,here's what we can do:

In this case,the eqaution would be:

Hope it helps!