Answer:
-640
Step-by-step explanation:
Associative property of addition
<span> 7+(4+4)=(7+4)+4
hope it helps</span>
Answer:
1
Step-by-step explanation:
slope must be same because it is paralel
Answer:
No
Step-by-step explanation:
Look at the surface area of the box formular : S = 2lw + 2lh + 2wh
When l : length. w: with and h: hight
As we often considered strange, you can always multiply a whole number by a whole number and always get a whole number, and there is no decimal number about the 3 dementions like the boxes you have been describing so far. So It is impossible.
If by decomposition you mean breaking it ino parts then
break it itno 2 triangles and 1 rectangle
left to right
triangle with base y and height h
h=10
y=3
area of traignel=1/2bh
aera=1/2(10)(3)
area=5(3)
area=15
rectangel of legnth x and height h
area=legnth timwe width
x=8
h=10
area=8 times 10
aera=80
last triangle
should be same as other sinces same base (y) and same height (h)
15
add
15+80+15=120