Answer:

Step-by-step explanation:
<h3>to understand this</h3><h3>you need to know about:</h3>
<h3>tips and formulas:</h3>
<h3>given:</h3>
- r=10

<h3>let's solve:</h3>




Answer:
A. 7- i
B. -20 -10i
C. 50
D. -1 +2i
Step-by-step explanation:
3x=2
x= 2/3
slope is undefined. there is no y intercept
Answer:
Step-by-step explanation:
You add 10 more so it should be 19cm
Mark brainliest please:)
Answer:
7 or 
Step-by-step explanation:
Each triangle has the surface area of 1.5, because 1
3 = 3 / 2 = 1.5. You divide by two because it is half a rectangle instead of a full one. You multiply by four which would get you 1.5
4 = 6. The square in the middle has the surface area of 1 because 1
1 = 1. So you would get 7.