You are utility company charges $.13 per kilowatt hour of electricity. what is the daily cost of keeping a 100 w lightbulb for 12 hours each day? how much will you save in a year if you replace the bowl with an led bulb that provides the same amount of light using only 25 w of power?

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.

one set of data has more variation than the other. hope this !

42.4 6th grade students prefer hip hop

step-by-step explanation:

40 percent of 106 = 42.4