2 years ago

PLEASE HELP. no links.

Mathematics

1 answer:

kobusy [5.1K]2 years ago

3 0

Answer:

45 i think

Step-by-step explanation:

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Hunter-Best [27]

Option B. 2 because 2-8
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2 years ago

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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.

Ostrovityanka [42]

Answer:

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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2 years ago

Add. 635+(−613) Enter your answer as a simplified fraction in the box.

3241004551 [841]

635+(-613)=635-613=22

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Given sin300°, which of the following is an equivalent expression ?

DENIUS [597]

Answer:sin240

Step-by-step explanation:

Sin300=(-√3)/2

Sin240=(-√3)/2

So sin300 is equivalent to sin240

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true or false: when multiplying radicals, you multiply the radicands together and the numbers outside the radicals together

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You can only multiply numbers that are inside the radical symbols

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