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Fed [463]
3 years ago
9

The volume of a paint can is 215 in. If the height of the can is 7.5 in, what is the radius to the nearest whole number

Mathematics
1 answer:
natima [27]3 years ago
3 0
Assuming the can is a cylinder set up the equation V=pi(r)^2h
215=pi(r)^2(7.5)
r^2=9.1248
r=3.021
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Sergio [31]

Answer: AC = 7√3

tan 30° = \frac{BC}{AC}

=> \frac{BC}{AC}=\frac{1}{\sqrt{3} }\\\\\=> AC=BC\sqrt{3} =7\sqrt{3}

Step-by-step explanation:

3 0
3 years ago
Which is the best option?
rusak2 [61]

Answer:

A would have to be the best answered all the all ones dont seen right

6 0
2 years ago
Transform the Cartesian (rectangular) equation to a polar equation: x = -9. The selected answer is incorrect.
nika2105 [10]

Answer:

Solution : Option C

Step-by-step explanation:

We have the equations r² = x² + y², x = r cos(θ), and y = r sin(θ) that can be used to solve this problem. In this case we only need the second two equations (  x = r cos(θ), and y = r sin(θ) ) as we don't need to apply the concept of circles etc here.

Given : x = - 9,

( Substitute r cos(θ) for x )

r cos(θ) = - 9,

r = - 9 / cos(θ)

( Remember that sec is the reciprocal of cos(θ). Substitute sec for 1 / cos(θ) )

r = - 9 sec(θ)

Therefore the third option is the correct solution.

6 0
3 years ago
LCM of 20 and 24.<br> Pls answer this question.
GREYUIT [131]

Answer:

it's very simple..just see the image which I have sended you I have done it myself...hope you will understand

Step-by-step explanation:

please do follow me and keep asking me questions of maths and science I am quite good in them and don't forget to mark me as the brainliest answer✌✌

7 0
3 years ago
Read 2 more answers
Which shows the following expression after the negative exponents have been eliminated? xy^-6/x^-4 y^2, x=/0 y=/0
Tom [10]
For this case we have the following expression:
 (xy ^ -6) / (x ^ -4y ^ 2)
 By power properties we can rewrite the expression as:
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 Then, for power properties:
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 (x ^ (4 + 1)) / (y ^ (6 + 2))
 (x ^ 5) / (y ^ 8)
 Answer:
 
An expression after the negative exponents have been eliminated is:
 
(x ^ 5) / (y ^ 8)
3 0
3 years ago
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