Answer:
132cm^2 is the surface area.
Step-by-step explanation:
so first the area of each side..
total Faces - 5
for triangle - the area formula is going to be 6
there is more than 1 triangle, so 6 + 6 = 12
30
50
6
6
40
all these are areas of each Face.
add.
=132
4a^2-12b=
<u>4(a^2-3b)
</u>
multiply 4 with the parenthesis, and you can see it will be 4a^2-12b<u>
</u>
Answer:
because they are across from each other vertically
Step-by-step explanation:
Answer:
-7
Step-by-step explanation:
To find x, substitute the values and solve.
R = 2x + 9y
It becomes:
2x + 27 = 13
Rearrange and solve
2x = -14
x = -7
Hope this helps