Find the possible value or values of r in the quadratic equation r^2-7r-8=0
answer: option d is correct .
in order to find the same attendance we set both equation equal
8x+191 = -x^2+26x+126
simplifying equation ,we get
(x-5) (x-13) = 0
x =5 or x =13
therefore on 5th day and 13th day both plays attendance is same
and it is obtained by plugging x = 5 in and x =13 in either of the equation.
for x = 5 ,
y = 8(5) +191 = 40+191 = 231
for x = 13
y = 8(13)+191
therefore option d is correct
answer: i would say 1.
dunno, i just dropped it in the calculater and did what ever till i got one of those answers and i got 1.
option a. half the distance between point a and point k
the distance between point a and point k is:
like ax=fx and fy=ky
common factor 2:
the distance between point p and point q is:
then the distance between point p and point q is half the distance between point a and point k: