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3 years ago

Create a system of equations with a solution of (-5,2)

Mathematics

1 answer:

saul85 [17]3 years ago

5 0

Y=-2x-8
Y=x+7

Hope this helps :))

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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!

<em>brainliest?</em>

8 0

3 years ago

Its an easy 25 points

boyakko [2]

Answer:

hope it's help u thank u

Step-by-step explanation:

y=-8
y=-5
y=1
y=10

8 0

1 year ago

18 is 0.4 of what because i dont know

Tamiku [17]

'is' means equals
'of' means mutily so
we have
18 =0.4 times what
divide both sides by 0.4
45=what
the answer is the number is 45

3 0

3 years ago

Read 2 more answers

The theater club spends $1,197 for 63 student tickets.

Dmitriy789 [7]

Answer:

19 dollars per student

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers

What is the answer to number 7 and 8

saveliy_v [14]

Answer:

Good, Good, Good, Good, GOOOOOOOOOOOOOOOOOOOO000D. It's E btw I think I don't know

Step-by-step explanation:

3 0

3 years ago