Poll There is a door of 200 cm x 150 cm and two windows of
100 cm x 150 cm in a room whose length is 6 m and
breadth 4 m. If the total cost of plasting its four walls and
ceiling at Rs. 40 per m2 is Rs. 4,320, find the height of the
room.
(Ans: 4.5 m)
TT. 7m 5m 7​

yes

step-by-step explanation:

whatare you sayig

step-by-step explanation:

x = ±sqrt(10)

step-by-step explanation:

5 - 2x² = -15

subtract 5 from each side

5-5 - 2x² = -15-5

-2x^2   = -20

divide by -2 on each side

-2x^2   /-2= -20/-2

x^2 =10

take the square root on each side

sqrt(x^2 )=±sqrt(10)

x = ±sqrt(10)

check:

5 - 2x² = -15

+sqrt(10)

5 - 2(sqrt(10))² = -15

5 -2(10) = -15

5 -20 = -15

-15 = -15

-sqrt(10)

5 - 2(-sqrt(10))² = -15

5 -2(10) = -15

5 -20 = -15

-15 = -15

to find the total number of combinations, multiply the quantity of each item by each other:

2 pairs of shoes x 3 pairs of shorts = 6 different combinations.