These cubes have sides of 2 cm and 6 cm respectively.

What is the ratio of their volumes ?

A. 1 to 9

B. 1 to 6

C. 1 to 27

D. 1 to 2

C . 1:27

Step-by-step explanation:

Volume of cube = L x B x H

The fist cube has sides 2cm

Therefore v = 2 x 2 x 2

= 8cm^3

The second cube has sides 6cm.

v = L x B x H

= 6 x 6 x 6

= 216cm^3

Therefore,Ratio of both cubes

= volume of first cube /volume of second cube

That is 8/216

1/27

1:27

9

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.