Which sentence represents the inequality -2b + 7 > 27.5? Two times a number, plus seven, is less than twenty-seven and five tenths. Two times a number, plus seven, is greater than twenty-seven and five tenths. Negative two times a number, plus seven, is fewer than twenty-seven and five tenths. Negative two times a number, plus seven, is greater than twenty-seven and five tenths.

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.

v = 1/3 a^2h

step-by-step explanation:

the volume is 1/3 a^2h.

this linear equation would have just one solution.

step-by-step explanation:

the reason why this would have one solution is that it is an expression with just one variable. since that variable is not raised to a power, it will always have just one solution.

d. all of the above

step-by-step explanation: