Answer:
8/50
5/50
10/50
38/50
45/50
Step-by-step explanation:
Answer:120x10 1200 half a piece = 60% 50-60=10%=1200
Step-by-step explanation:
Answer:
8*5=40
160/40=4
to recheck
V= LxWxH
V=8*5*4
V=160
Step-by-step explanation:
GOOD LUCK
<h3><u>Solution:- </u></h3>
Let the number to be added be A
Now,
![\begin{gathered}\implies\quad \sf −5x^3 + 4x − 3 + A = x^2 − x − 1 \\\end{gathered}](https://tex.z-dn.net/?f=%5Cbegin%7Bgathered%7D%5Cimplies%5Cquad%20%5Csf%20%E2%88%925x%5E3%20%2B%204x%20%E2%88%92%203%20%20%2B%20A%20%3D%20x%5E2%20%E2%88%92%20x%20%E2%88%92%201%20%5C%5C%5Cend%7Bgathered%7D%20)
Transposing (−5x³+ 4x − 3 ) to other side-
![\begin{gathered}\\\implies\quad \sf A = x^2 − x − 1 -( −5x^3 + 4x − 3) \\\end{gathered}](https://tex.z-dn.net/?f=%5Cbegin%7Bgathered%7D%5C%5C%5Cimplies%5Cquad%20%5Csf%20%20%20A%20%3D%20x%5E2%20%E2%88%92%20x%20%E2%88%92%201%20-%28%20%E2%88%925x%5E3%20%2B%204x%20%E2%88%92%203%29%20%5C%5C%5Cend%7Bgathered%7D%20)
Remember if there is a -ve sign before a bracket the signs of whole of the terms changes on opening bracket
![\begin{gathered}\\\implies\quad \sf A = x^2 − x − 1 + 5x^3 - 4x + 3\\\end{gathered}](https://tex.z-dn.net/?f=%5Cbegin%7Bgathered%7D%5C%5C%5Cimplies%5Cquad%20%5Csf%20%20%20A%20%3D%20x%5E2%20%E2%88%92%20x%20%E2%88%92%201%20%2B%205x%5E3%20-%204x%20%2B%203%5C%5C%5Cend%7Bgathered%7D%20)
Putting like terms together -
![\begin{gathered}\\\implies\quad \sf A = 5x^3 +x^2 - x -4x +3 -1 \\\end{gathered}](https://tex.z-dn.net/?f=%5Cbegin%7Bgathered%7D%5C%5C%5Cimplies%5Cquad%20%5Csf%20%20%20A%20%3D%205x%5E3%20%2Bx%5E2%20-%20x%20-4x%20%2B3%20-1%20%20%5C%5C%5Cend%7Bgathered%7D%20)
![\begin{gathered}\\\implies\quad \sf A = 5x^3 +x^2 -5x +2 \\\end{gathered}](https://tex.z-dn.net/?f=%5Cbegin%7Bgathered%7D%5C%5C%5Cimplies%5Cquad%20%5Csf%20%20%20A%20%3D%205x%5E3%20%2Bx%5E2%20-5x%20%2B2%20%5C%5C%5Cend%7Bgathered%7D%20)
Therefore, 5x³+x²-5x +2 should be added to −5x³+ 4x − 3 to get x²− x − 1
A. 35 degrees since congruence would be the opposite side being the same