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34kurt
2 years ago
15

Please help me with this and answer correctly pleaseeeeee!!!!!

Mathematics
1 answer:
Marta_Voda [28]2 years ago
5 0

Answer:

7 m  

Explanation:

diameter = 12 m, radius = 6 m, volume of cone: \sf  \frac{1}{3} \pi r^2 h

solve:

\hookrightarrow \sf \frac{1}{3} \pi r^2 h = 264

\hookrightarrow \sf \frac{1}{3} \pi (6)^2 h = 264

\hookrightarrow \sf  \pi (6)^2 h =792

\hookrightarrow \sf  h =\dfrac{792}{ \pi (6)^2}

\hookrightarrow \sf  h = 7

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2 years ago
It takes 9 builders 54 days to complete a house.
Dima020 [189]

It would take 6 builders  36 days to complete the same house.

<h3>Who are builders?</h3>

Builders are those person whose job is to build or repair houses and other buildings.

We have,

9 builders take 54 days to complete a house.

So,

1  builder will take  (\frac{54}{9})  days to complete a house,

In the same way,

6  builder will take  (\frac{54}{9}*6)  days to complete a house,

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5 0
2 years ago
Read 2 more answers
Limit as x approaches 9 of x^2 -81/sqrt of x - 3
Ipatiy [6.2K]

Answer:

108

Step-by-step explanation:

Limit as x approaches 9 of x^2 -81/sqrt of x - 3

First substitute x into the expression

= 9²-81/√9 - 3

= 81-81/3-3

= 0/0 (indeterminate)

Apply l'hospital rule

= lim x -> 9 d/dx(x²-81)/√x - 3

= lim x -> 9 2x/1/2√x

Substitute x = 9

= 2(9)/1/2√9

=18/1/(2(3)

=18 × 6/1

= 108

Hence the limit of the function is 108

7 0
3 years ago
Find the product. 7. $458.29 × 6.3% 8. $280.12 × 7.75%
miskamm [114]

Answer:

7. 28.8722

8. 21.7093

Step-by-step explanation:

458.29 x .063=28.8722

21.7093 x .0775= 21.7093

6 0
3 years ago
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