Answer:
The correct option is (a).
Step-by-step explanation:
We need to find the expression that is equivalent to 1.5(6x+3y)+2x-0.05y.
Firstly opening brackets as follows :
![1.5(6x+3y)+2x-0.05y=1.5\times 6x+1.5\times 3y+2x-0.05y\\\\=9x+4.5y+2x-0.05y](https://tex.z-dn.net/?f=1.5%286x%2B3y%29%2B2x-0.05y%3D1.5%5Ctimes%206x%2B1.5%5Ctimes%203y%2B2x-0.05y%5C%5C%5C%5C%3D9x%2B4.5y%2B2x-0.05y)
Now taking x terms and y terms together
![9x+4.5y+2x-0.05y=(9x+2x)+(4.5y-0.05y)\\\\=11x+4.45y](https://tex.z-dn.net/?f=9x%2B4.5y%2B2x-0.05y%3D%289x%2B2x%29%2B%284.5y-0.05y%29%5C%5C%5C%5C%3D11x%2B4.45y)
So, 1.5(6x+3y)+2x-0.05y is equal to 11x+4.45y.
It is: No, he is not correct and the correct solution is 10r +10
-2r-5a+12r+10+5a
-5a+10r+10+5a
10r+10
Answer:
1. 8.5 same side as the side on the left (congruent)
2. 65° same as opposite angle (congruent angles)
3. 7.2 E is the midpoint so its the same as that measurement