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3 years ago

Anyone know how to answer this question?

Mathematics

1 answer:

a_sh-v [17]3 years ago

5 0

Answer:

Step-by-step explanation:

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A cylindrical well is 15 meters deep and has a diameter of 1.6 meters. Approximately how many cubic meters of soil were dug out

Lisa [10]

We can dig out the soil from the well equal to volume of well.

Height(h) of well is = 15 meters.

Diameter = 1.6 meters.

So radius(r) = $\frac{1.6}{2} = 0.8$ meter.

As well in cylindrical shapes.

So volume of well = $\pi r^2h$
                               = $\pi * (0.8)^2 * 15$
                                $= 9.6 * \pi$
In general $\pi = 3.14$

So volume of well is = $9.6 * 3.14$
   $= 30.144$ cubic meter.

So we can dig out 30.144 cubic meter soil from well.

5 0

3 years ago

The weight of an object on a particular scale is 155.2 lbs. The measured weight may vary from the actual weight by at most 0.4 l

alexira [117]

155.2 + 0.4 = 155.6
155.2 - 0.4 = 154.8

so it ranges from : 154.8 to 155.6

5 0

3 years ago

Read 2 more answers

The area of a triangular flag is 20 square centimeters. Its altitude is 2 centimeters longer than twice its base. Find the lengt

Anvisha [2.4K]

The answer to your question is
Base: 4
Altitude: 10

7 0

3 years ago

Solve for f:5/6F=5<br> Please help me<br> I will give brainliest

vredina [299]

Answer:

f = 6

Step-by-step explanation:

5/6F=5

Multiply each side by 6/5 to isolate f

6/5 * 5/6F=5*6/5

f = 6

6 0

3 years ago

Read 2 more answers

The lead of a screw is the distance that the screw advances in a straight line when the screw is turned 1 complete turn. If a sc

pishuonlain [190]

Answer:

It would get <u>20</u> complete turns.

Step-by-step explanation:

Given:

The lead of a screw is the distance that the screw advances in a straight line when the screw is turned 1 complete turn. If a screw is 2 1/2 inches long and has a lead of 1/8 inch,

Now, to find complete turns.

Length of screw = $2\frac{1}{2}=\frac{5}{2}=2.5\ inch$

Lead of screw = $\frac{1}{8} =0.125\ inch.$

As, given the screw advances in a straight line when the screw is turned 1 complete turn.

Now, to get the number of complete turns it would divide length of screw by lead of screw:

$2.5\div 0.125\\\\=\frac{2.5}{0.125}\\\\=20.$

Therefore, it would get 20 complete turns.

6 0

3 years ago