Answer the question please it’s 21 points it’s just 7 and 8

7. volume is raised to the third (a³) power.

8.≈ 5.64ft

Step-by-step explanation:

volume is always raised to the third power which also indicates that the object/shape is cubed.

height= 4ft

volume= 100ft³

then, multiply both the height and volume together.

4ft × 100ft³

≈ 5.64ft

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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.