Find the number of real solutions of x^2-6x-6=0 using the discriminate

Step-by-step explanation:

x²-6x-6=0

D=b²-4ac

=(-6)²-4(1)(-6)

=36+24

=60

a. 42% b. 58%

Step-by-step explanation:

a. add the amount of boys together from the chart so:

39 + 24 = 63, and then to find the percentage it will be 63/ 150 because 150 is the total students and 63 is just boys, and it has to multi[ly 100 because u want to change it percentage and 100 does represent %:

63/150 times 100 = 6300/150 = 42%

b. same with questions a instead add the students under the watching television column. 63 + 24 = 87, now do the same thing to convert it to percentage form:

87/150 times 100 = 8700/150 = 58%