Answer:
Step-by-step explanation:
hello :
f(x) =-2x²+4x+1 Completing The Square : f(x) =2(x²+2x)+1
f(x) = -2((x²-2x+1)-1)+1
f(x) = -2((x-1)²-1)+1
f(x) =2(x-1)²+1 ... verex form when the vertex is (1,1)
the axis of symmetry is x=1
Answer:
131.7
Step-by-step explanation:
Answer:
god knows
Step-by-step explanation:
Answer:
1) 3/4
2) 15 days
Step-by-step explanation:
A has completed 3/12 = 1/4 of the work
3/4 of the work is left to be done
B can do the work in 20 days.
Since 3/4 of the work is left,
He needs (3/4)×20 = 15 days to complete the remaining work
It will be Net A and the S. A. = 12*14 + 5*14 + 2(0.5*5*12) + 14*13 = 480
The correct option is the second one.
