The one that you have marked in the picture is right because you are taking away two hours and dividing 400 by s
Answer:
c
Step-by-step explanation: ccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccc
Answer:
C
Step-by-step explanation:
The multiples of 3 are
3, 6, 9, 12, 15, ...........
The terms form an arithmetic sequence with common difference of 3.
The sum to n terms is
=
[2a₁ + (n - 1)d ]
where a₁ is the first term and d the common difference
Here a₁ = 3 and d = 3, thus
=
[ (2 × 3) + (139 × 3) ]
= 70(6 + 417) ] = 70 × 423 = 29610 → C
The solution is the point where the lines meet.
The x coordinate is between 0 and 1
The y coordinate is between 2 and 3
The solution is approximately (x,y) = (-0.4, 2.9)
9x^4+x^3+9x^2+8x-8, I believe