Required area of shaded portion
= Area of square ABCD - 4 × area of one quadrant

First you do 3.5z-2.7z= .8z then you divide .8 with -6, which gives you -7.5 so z= -7.5
Answer:
sorry getting points
Step-by-step explanation:
Answer:
6370 is the answer Hope this helps.
Answer:
a =1 and b =2
Step-by-step explanation:
The standard quadratic is written in the form
ax^2 +bx+c =0
x^2 +2x -13 =0
a =1 and b =2