Answer:
16.5
Step-by-step explanation:
Evaluation of square root 169 = 13, so 10 + 13 = 23
-243
Step-by-step explanation:
số dương nhân -3 thì đc số âm, số âm nhân với -3 để đc số dương.
vd: 1. -3 = -3 ; -3 .-3= 9 ;..... 81 . -3= -243
Answer:
∴ 
and 
this two sides include 
Step-by-step explanation:
Given;
A triangle 
We can see the figure of the triangle
Where the or 
made by two sides and .
So and this two sides include
Answer:
this is explaining how to do it, you need to isolate the variable so you need to substract or add so that she is alone.
Step-by-step explanation:
