What is the volume of a barrel that has a diameter of 1 1/2 feet and a height of 4 feet?
answer asap

7

Step-by-step explanation:

A barrel has a shape of a cylinder, therefore volume of a barrel is Area x height = pi× r^2 h

Where pi = 3.14; r = radius and h = height

Given that height = 4 ft

Diameter = 1.5 ft

Step 1: divide diameter by 2 to get the length of the radius = 1.5 /2 = 0.75

r = 0.75; r^2 = 0.75 x 0.75 = 0.5625

Step 2: slot the values into the formula

3.142 × 0.5625 x 4

= 7cubic cm

I hope this is clear, please mark as brainliest answer.

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step-by-step explanation:

12: 00 p.m. to 7: 00 p.m. is a total of 7 hours.

4: 00 p.m. to 7: 00 p.m. is a total of 3 hours.

this means that from 4: 00 p.m to 7: 00 p.m. this represents 3/7 of what was lost from 12: 00 p.m. to 7: 00 p.m.

after knowing this, after doing 11,600 - 6,800 = 4,800

4,800 represents 3/7 of what was lost for 7 hours.

we then divide 4,800 by 3 which gets 1,600.

because we know that 1,600 represents 1/7 of how much water was lost, we just have to multiply by 7, which gets 11,200.   after adding 11,200 to how much water was left at 7: 00 p.m. which was 6,800. 11,200 + 6,800 = 18,000

this means that the pool originally had 18,000 gallons in the pool.

you can also check your work by doing 18,000 - 4(1600), which becomes           1800 - 6400 which gets you 11,600.