Question

if the lenght of room is 8m and the breath is 5m and the height is 3.5 find the total area of the room​ find the volume occupied by the room​

Answer 1

Answer:

Area to be white washing=2h(l+b)+lb

=2×4(5+3.5)+(5×3.5)

=68+17.5=85.5㎡

Total cost of white washing=Rs. (85.5×15)=Rs.

Step-by-step explanation:

Answer 2

Ur previous answer :-

Let p is added to x²+xy²+y² to

obtain 2x² + 3xy

x²+xy²+y² + p = 2x² + 3xy

=> p = 2x²+3xy -(x²+xy²+y² )

= 2x²+3xy -x²-xy²-y²

= x²+3xy-xy²-y²

Therefore,

(x²+3xy-xy²-y²) to be added

to x²+xy²+y²) to obtain

2x²+3xy.