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Orlov [11]
2 years ago
10

Can someone help me I don’t get it

Mathematics
1 answer:
Gemiola [76]2 years ago
8 0

Answer:

C

Step-by-step explanation:

112.5/180 = .625

5/8 = .625

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A cylinder has a volume of 198 cm3, and its base has an area of 22 cm2. What is the height of the cylinder? V= πr²h
DIA [1.3K]

Answer:

The height of cylinder is 9 cm

Step-by-step explanation:

Volume of cylinder = 198 cm³

Base Area = 22 cm²

We need to find height of the cylinder

The formula used is: Volume\:of\:cylinder=\pi r^2h

Where Base\: Area = \pi r^2

First we need to find radius r

Base\: Area = \pi r^2\\22=3.14\: r^2\\r^2=\frac{22}{3.14}\\r^2=7\\Taking\: square\: root\: on\: both\: sides\\\sqrt{r^2}=\sqrt{7}\\r=2.656

So, we get radius r = 2.656

Putting values of volume and radius are to find height

Volume\:of\:cylinder=\pi r^2h\\198=3.14(2.656)^2h\\h=\frac{198}{22}\\h=9

So, the height of cylinder is 9 cm

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3 years ago
Use the graph to find the cost of 8 shirts
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The cost of 8 shirts is 120$
5 0
2 years ago
Help me (giving brainliest)
kirza4 [7]
Hey, do you still need the answer?
4 0
2 years ago
What is one half times 10
lys-0071 [83]
That would be 5, all you need to do is divide by 2 or mltiply by 0.5 to get half of a number
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Read 2 more answers
I don’t understand how to do this
schepotkina [342]

Answer:

The solution is x =0.

Step-by-step explanation:

The equation

\bold{(1).}\: sin(\dfrac{3\pi }{2} +x)+sin(\dfrac{3\pi }{2} +x) =-2

can be rewritten as

2* sin(\dfrac{3\pi }{2} +2) =-2

and can be further simplified to

sin(\dfrac{3\pi }{2}+x ) =-1.

Now, taking the inverse sine of both sides we get:

sin^{-1}(sin(\dfrac{3\pi }{2} +x) =sin^{-1}(-1)

\bold{(2).}\:  \dfrac{3\pi }{2} +2 =sin^{-1}(-1)

The value of the right side on the interval [0,2\pi) is

sin^{-1}(-1) = \dfrac{3\pi}{2} \: \:( \text{or }270^o) ,

which makes the equation (2)

\dfrac{3\pi }{2}+x  =\dfrac{3\pi}{2}

solving for x gives

\boxed{x = 0}

which is our solution.

4 0
3 years ago
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