Answer:
384.3
Step-by-step explanation:
Answer:
30
Step-by-step explanation:
20+12-E=2
32-E=2
-E=-30
E=30
Answer:
C
Step-by-step explanation:
because it doesn't have an x number written twice like for example
(2,0) (2,8) (3,0)
No; we have 
. Substituting these into the DE gives
which reduces to 
, true only for 
.
Paper he needs = total surface area
So to break it down into 2D shapes, that prism has 2 2D triangles, and 3 2D rectangles of different sizes.
The triangles are the same size, since you have 2, just multiply 2 by the formula for the area of a triangle: 1/2(base)(height) which is 2x1/2(5)(12) = 60
Next you'll need the area of all the rectangles: length x width. which would be (5 x 5) + (13 x 5) + (12 x 5) = 150
So the total amount of wrapping paper he'd need is 150mi^2
