Hello :
incorrect answer because :
but :
........a+b <span>≥ 0</span>
It should be 9:30 P.M.
7:45+ 15= 8
1 hour 35 minutes - 15= 1 hour 20
8+ 1 hour 20 minutes= 9:20
9:20+ 10= 9:30 P.M.
Step-by-step explanation:
We khow the sum and the product of the zeroes of this quadratic polynomial
Here is a trick :
when we khow the sum S and the product P ofvtwo numbers we can find them by solving :
x²-Sx+p=0
here S= -8 and P=12
so:
x²+8x+12=0
Let Δ be the discrminant of this equation: a= 1 , b= 8 and c=12
Δ= 8²-4*12 =16
the zeros are:
(-8-4)/2= -6
(-8+4)/2 = -2
verify:
-6+(-2)= -8
-2*(-6)= 12
now the polynomial quadratic is:
(x+6)(x+2)
Answer:
The answer would be 9(3+4)
Step-by-step explanation:
9(3+4)
= 9(3) + 9(4)
= 27 + 36
The answer to your question is C
