Answer:
hold on ill answer in a min i have to do something
Step-by-step explanation:
Answer:
What i got was -1 .
Step-by-step explanation:
He adds a higher number to the original summed number every time:
3(+2), 5(+3), 8(+5), 13(+8), 21(+13), 34
From +2 to +3 there is a difference of 1.
From +3 to +5 there is a difference of 2. Observe how the numbers increase
From +5 to +8 there is a difference of 3.
Etc...
Hope it helped,
Happy homework!
Answer:
9.8 cm
Step-by-step explanation:
Volume of a cylinder can be gotten with this formula
V=πr2h
h = height of the oil.
We were told that 3 litres of oil was removed, then, there is a falling in the level of oil by 10 cm, hence the height of the oil is now
h° =( h) - (0.1)
Then the new volume can be calculated as
V°= V - (3×10^-3)
But
volume= (π r2h°)
Then substitute we have
πr2h - 0.003 = π r2 (h-0.1)
If we open the bracket we have
0.003 = (πr2 ×0.1)
πr2=0.003/0.1
Then r=√ (0.03/0.1π)
=9.8 cm
Note that 1L = 10-3 m3
