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3 years ago

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Mathematics

1 answer:

Nat2105 [25]3 years ago

3 0

The answer is D plane Qpr

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Select the correct name for the following line.

Pani-rosa [81]

The correct name for the line shown is the answer choice C.

It can be A because the picture is a line not a ray and it cant be B because the picture shown is not a segment

Hope this helps :)

4 0

2 years ago

Read 2 more answers

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!

<em>brainliest?</em>

8 0

2 years ago

Kahlil is recording a beat for a song that

vitfil [10]

Answer:

Step-by-step explanation:

now I'm no math expert, I'll make that clear now, but it makes perfect sense for the answer to be b. the person wants it all to be ABOVE ten seconds, added in with the 5 seconds for the lyrics. all the numbers in b are above that

5 0

3 years ago

Is 3y^2-2y already simplified

geniusboy [140]

Yes it is already simplified because there is nothing else that you are able to do to it.

4 0

3 years ago

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HELP !!! Evaluate f(-2) for the function f(x) = 3x2 + 2x - 5

Phoenix [80]

Answer:

Step-by-step explanation: