Mathematics: Determine the volume of the figure. Use 3.14 for π. Round your answer to the nearest tenth. Show all of your work.

Determine the volume of the figure. Use 3.14 for

Ответ:

redbeast677

25.01.2022

Mathematics

1985 cubic units (written as un. with the cubed exponent)

Step-by-step explanation:

First, you find the volume of the cylinder

Here's the formula:

$V=\pi r^{2}h\\V=volume\\r=radius\\h=height$

Now, you plug in and solve.

$V=(3.14)(7.2^{2})(7.4)\\V=(3.14)(51.84)(7.4)\\V=(162.7776)(7.4)\\V=1204.55424\\rounded:\\V=1204.6$

Then, you find the volume of the dome.

Here's the formula:

$volume/of/a/sphere=\frac{4}{3}\pi r^{3}\\volume/of/a/dome:\\V=\frac{2}{3}\pi r^{3} \\V=volume\\r=radius$

Now, you just plug in and solve.

$V=(\frac{2}{3})(\pi)(r^{3})\\V=(\frac{2}{3})(3.14)(7.2^{3})\\V=(\frac{2}{3})(3.14)(373.248)\\V=(2.093)(373.248)\\V=781.208064\\rounded:\\V=781.2$

Finally, you add them together, and there's your answer!

1204.6+781.2=1985.8

Hope this helped!

brainliest?

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Ответ:

markell42

12.01.2023

Mathematics

How do you solve equations that contain addition or subtraction?

I can solve equations that contain addition or subtraction by using 2 properties of equality, the "Addition Property of Equality" or APOE and the "Subtraction Property of Equality" or SPOE. Then, I can use the IPOA (Identitive Property of Addition). Finally, I can solve the Equation.

Example: x+5=14

step 1. move the numbers, constant with constant and variable with variable, Remember, you MUST change the operation first (x=14-5)

step 2. solve (14-5=9; x=9)

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Determine the volume of the figure. Use 3.14 for π. Round your answer to the nearest tenth. Show all of your work.

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