Answer:
Step-by-step explanation:
The diagonal of a rectangular prism can be found with 
. Thus, the diagonal is 
Hope it helps <3
Answer:
-2x^4+x^3-5x+8
Step-by-step explanation:
8-5x+x^3-2x^4
Write the polynomial from highest powers of x to lowest
-2x^4+x^3-5x+8
2 would most like be doubled and be 4 I think...
Answer:
40
Step-by-step explanation:
it would be 20 too but there is no opition for this i hope i helped