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liubo4ka [24]
3 years ago
8

The volume of a cylinder is 210 cm³ with a radius of 14 cm find the curved surface area if the formula for curved surface area i

s
2πrh​
Mathematics
1 answer:
noname [10]3 years ago
5 0

Answer:

30 cm²

Step-by-step explanation:

we need to find h

V=πr²h

h=V/πr²

h=210/14²π

h=0.341

then we found curved surface area

A=2πrh

A=2×π×14×0.341

curved surface are= 30 cm²

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<u>Answer:</u>

The mid-point is (7.5, 8.5).

<u>Step-by-step explanation:</u>

We are given two points (9​,9​) and ​(6​,8​) as the endpoints for a line segment and we are to find the midpoint of this segment.

We know that the formula for finding the mid point is:

<em>Mid point = (\frac {x_1 + x_1 }{ 2 } ,\frac { y_1 + y_2} {2} )</em>

So substituting the given values of the coordinates of the endpoints in the above formula to get:

= (\frac {9 + 6}{2} , \frac {9 + 8}{2} )

= (\frac {15}{2} , \frac {17} {2} )

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Therefore, the mid-point is (7.5, 8.5).

4 0
3 years ago
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Step-by-step explanation:

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3 years ago
12 divided by -5/8<br> please help me:)
devlian [24]
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Sam says 90 ÷ (–9) = 10. Is he correct? Use the drop–down menus to explain your answer. Sam correct. Sam gave an example of a in
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vova2212 [387]

That answer is x≤−8


Inequality:

8x−8≤−72


Step number  1:  You have to Add 8 to both sides.

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Step number 2: You have to Divide both sides by 8.

8x /8  ≤  −64 / 8


Ur Answer:

x≤−8


Hope this helps :)


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3 years ago
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