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LuckyWell [14K]
2 years ago
13

If the volume of a cone is 10 m^3 what is its height if the area of the base is 10 m^2?

Mathematics
2 answers:
Alex2 years ago
5 0

Answer:

3 m

Step-by-step explanation:

\textsf{Volume of a cone}=\sf \dfrac{1}{3}  b h \quad\textsf{(where b is the area of the circular base and h is the height)}

Given:

  • volume = 10 m³
  • Area of base = 10 m²

\implies \sf 10=\dfrac{1}{3} \cdot 10 \cdot h

\implies \sf 10=\dfrac{10}{3}h

\implies \sf 30=10h

\implies \sf h=\dfrac{30}{10}=3

Bad White [126]2 years ago
4 0

Answer:

height: 3 meter

Explanation:

\sf volume : \frac{1}{3}  \ x \ base \ area \ x \  height

Here given:

  • base area: 10 m²
  • height: h
  • volume: 10 m³

Solve:

\longrightarrow \sf 10 = \frac{1}{3} \ x  \ 10 \ x  \ h

\longrightarrow \sf 10 = \frac{10}{3} \ x   \ h

\longrightarrow \sf \frac{10 \ x  \ 3}{10}  =   h

\longrightarrow \sf 3  =   h

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Oksana_A [137]

Answer:

6:30

1:5

4:20

3:15

2:10

Step-by-step explanation:

im pretty sure these are correct

7 0
3 years ago
Cos^2x+cos^2(120°+x)+cos^2(120°-x)<br>i need this asap. pls help me​
o-na [289]

Answer:

\frac{3}{2}

Step-by-step explanation:

Using the addition formulae for cosine

cos(x ± y) = cosxcosy ∓ sinxsiny

---------------------------------------------------------------

cos(120 + x) = cos120cosx - sin120sinx

                   = - cos60cosx - sin60sinx

                   = - \frac{1}{2} cosx - \frac{\sqrt{3} }{2} sinx

squaring to obtain cos² (120 + x)

= \frac{1}{4}cos²x + \frac{\sqrt{3} }{2}sinxcosx + \frac{3}{4}sin²x

--------------------------------------------------------------------

cos(120 - x) = cos120cosx + sin120sinx

                   = -cos60cosx + sin60sinx

                   = - \frac{1}{2}cosx + \frac{\sqrt{3} }{2}sinx

squaring to obtain cos²(120 - x)

= \frac{1}{4}cos²x - \frac{\sqrt{3} }{2}sinxcosx + \frac{3}{4}sin²x

--------------------------------------------------------------------------

Putting it all together

cos²x + \frac{1}{4}cos²x + \frac{\sqrt{3} }{2}sinxcosx + \frac{3}{4}sin²x + \frac{1}{4}cos²x - \frac{\sqrt{3} }{2}sinxcosx + \frac{3}{4}sin²x

= cos²x + \frac{1}{2}cos²x + \frac{3}{2}sin²x

= \frac{3}{2}cos²x + \frac{3}{2}sin²x

= \frac{3}{2}(cos²x + sin²x) = \frac{3}{2}

                 

5 0
2 years ago
Table
viktelen [127]

4) The first and second terms for both ratios need to be in the same order.

Step-by-step explanation:

Given ratio is:

16:36

In order to find any ratio equivalent to given ratio, the ratio can be divided by a number or multiplied to a number.

The equivalent ratio that is given: 72:32

If we multiply the given ratio by 2: We get 32:72

So,

Looking at the options we can conclude that the right answer is

4) The first and second terms for both ratios need to be in the same order.

Keywords: Ratio, Fractions

Learn more about ratios at:

  • brainly.com/question/1993757
  • brainly.com/question/2048256

#LearnwithBrainly

3 0
3 years ago
How many quarts are in a pint
tia_tia [17]
There are exactly 0.499999 quarts in 1 <span>pint.</span>
5 0
3 years ago
Read 2 more answers
What is the slope of =-8x +3
sveta [45]

Answer:

-8

Step-by-step explanation:

5 0
3 years ago
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