Answer:
the cost is 21$, and it weighs 1 pound.
Step-by-step explanation:
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
.1
Because the first digit past the decimal is the tenth
5866.66 feet
Step-by-step explanation:
Step 1:
Let the Golden gate bridge be 220 feet tall before using scale ratio.
Here the scale ratio given is for 3 feet = 80 feet is the scale ratio.
Step 2:
To convert the 220 feet tall gate bridge in this conversion we have to do following things.
Let 220 feet contains 73.33 × 3 feet.
For every 3 feet it is equal to 80 feet.
220 feet is approx equal to 73.33 × 80 = 5866.66 feet