Ablueprint for a room has a scale of 1 in. to 3 ft. on the blueprint, one wall measures 9 in. in length. if l represents the length of the actual wall, what is l?

If the scale is 1 inch to 3 feet, and the wall is 9 inches, then our equation would be:

9 x 3 = L    9 x 3 = 27     So, L = 27!

1 in to 3 is times 3. So 9 times 3 is 27. L=27

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.

hi there, i would be interested to you with your test, may you add the questions and answer options.

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