Answer:
10
Step-by-step explanation:
Answer:
y = 9
Step-by-step explanation:
Given y is directly proportional to (x - 1)² then the equation relating them is
y = k(x - 1)² ← k is the constant of proportionality
To find k use the condition x = 5 when y = 4
k =
=
=
=
, thus
y =
(x - 1)² ← equation of proportion
When x = 7, then
y =
× 6² =
× 36 = 9
1,580 Hectoliters =
1,580,000 Deciliters
Answer is 0.31. Hope this helps.