Answer:
15
Step-by-step explanation:
15 +45 = 60 and 15 x 3 = 45
Hello from MrBillDoesMath!
Answer:
72
Discussion:
Total Surface area = area of pyramid base + 4 ( area of triangular face)
In our case this becomes
4*4 + 4( (1/2) (4)(7) ) =
= 16 + (2)(4)(7)
= 16 + 56
= 72
which is the first choice.
Note: the area of a triangular face was computed using (1/2) b h, which in our case is
(1/2) (4) (7)
Thank you,
MrB
Answer:
yes mine to!!!!!!!!!!!!!!!!!
The answer is 5x+3y-3
explanation:
3x+2x+y+2y-3
= 5x+y+2y-3
=5x+3y-3
