Factor the polynomial.

Step-by-step explanation:

hello :

factor :  x²-17x+72

the disciminent delta = b²-4ac   when : a=1  and b=-17 and  c=72

delta =(-17)²- 4(1)(72) = 289 - 288=1

X1 = (-(-17)-1)/2       X2= (-(-17)+1)/2

X1 = 8   and  X2 =  9

so :  x²-17x+72 =a(x-x1)(x-X2)

x²-17x+72 = (x-8)(x-9)

(x-9)(x-8)

Step-by-step explanation:

answer:   35 % is the probability of a late departure or an early arrival.

step-by-step explanation:

let l represents the late departure and e represents the early departure.

then, according to the question,

p(l) = 12 %,   p(e) = 27 % and = 4 %

and, we have to find out,

but, we know that,

which is the required equation that will use to find the probability of a late departure or an early departure.

therefore,   the probability of a late departure or an early arrival =   35 %