A comfort room which is 2m by 2m has to be tiled with 30 cm by 30 cm tiles. Is 50 pieces tiles enough to cover the comfort room. Illustrate your answer

yes

number of tiles needed = (200 x 200) / (30 x 30) = 44.4

Step-by-step explanation:

number of tiles needed = Area of comfort room / area of tiles

Area of a square = length²

convert area of comfort room to cm

100 cm = 1 meter

2 x 100 = 200

number of tiles needed = (200 x 200) / (30 x 30) = 44.4

50 tiles are more than enough to tile the room

how is that middle school

step-by-step explanation:

solution:

the given function is ,

      =

the three roots of this quadratic function is , 0 ,8 and 10.all the roots are real and rational.

if a quadratic equation is of the form ,

sum of the roots = a + b +c= 0+8+10=18=  

product of roots taken two at a time = a b + b c+ c a = 0+80+0=80 =  

product of roots = a b c = 0=  

there are 11 doors in a hall starting from 0 to 11.the entry in the hall is permitted through gate number 0 and exit is allowed through only gate number 8 and 10.so, three roots(0,8,10) of quadratic function is given by entry and exit route of this hall.