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s344n2d4d5 [400]
3 years ago
7

Please help I am really confused with this​

Mathematics
2 answers:
sleet_krkn [62]3 years ago
6 0

Answer:

A. 113 cm

Step-by-step explanation:

Formula: \frac{4}{3}\pi r^{3}

So: \frac{4}{3}\pi 3^{3}= 113.0973355

Also PLZ give Brainliest!!

Montano1993 [528]3 years ago
3 0

Answer:

Step-by-step explanation:

volume of sphere =  4/3*pie*radius cubed

4/3*pie*27 = 36pie

113cmcubed to the nearest whole number

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zimovet [89]

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8 0
4 years ago
Cos X<br> Y<br> 12<br> X<br> 16<br> 20<br> Z<br> 4<br> A) 3/4<br> B) 4/3<br> C)3/5<br> D) 5/4
yanalaym [24]

Answer:

C.

\cos X =  \frac{12}{20}  \\  =  \frac{3}{5}

5 0
3 years ago
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kari74 [83]
In the group A we have shapes with no right angles, and in group B we have shapes with at least 2 right angles.
3 0
3 years ago
The ratio of angles in a triangle is 2:3:5 Is the triangle right angled?
jenyasd209 [6]
2+3+5=180
the the angles are: 2/10 of 180=36
3/10 of 180=54
5/10 of 180=90
yes, it is a right triangle. 
3 0
3 years ago
Helppppppppppppp meeeeee plese
IgorC [24]

Answer:

A

Step-by-step explanation:

To find surface area of a cylinder, find the 2 circles which is the formula a=pi(r)^2, when you get that, multiply that by 2 because both sides count. Than the middle which I would imagine like a soda can. Cut a line right down the middle and hen you take it out, it looks like a Rectangle. Find the circumvented of the circle which would be pi(d)=circumfrence. Now after that you found the top side now the other side is 12 as shown here on the model and multiply thm together you’ll get 84 pi. Now those 2 circles would add up to 32 pi. Add them together youll get 116 pi. Now pi could be any but I’d Use 3.14 which will get you about to A becuase after all 3.14 is an approximate.

8 0
3 years ago
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