There are 6 sides and each side is 4mm long:
As = 6*(L*W) = 6*(4*4) = 96mm^2.
y = 7 which you subtract from 2x which means 2 times x so you use all of those as the value of 2 to see what the answer would be after you multiply it by 2
What’s the figure I couldn’t see anything here.
4a^2+7ab-b^2
Step-by-step explanation:
Add the first two equations together:
3a^2-ab-2b^2
+ 2a^2+5ab-3b^2
---------------------------
5a^2+4ab-5b^2
Subtract that answer from the remaining trinomial:
5a^2+4ab-5b^2
- a^2-3ab-4b^2
--------------------------
4a^2+7ab-b^2
Answer:
136
Step-by-step explanation:
Area of top and bottom added together:
(6) (7) + (6) (7)
42 + 42
<u>84</u>
Area of front and back added together:
(7) (2) + (7) (2)
14 + 14
<u>28</u>
Area of left and right added together:
(2) (6) + (2) (6)
12 + 12
<u>24</u>
Add all underlined numbers:
Area of top and bottom + Area of front and back + Area of left and right
84 + 28 + 24
136
