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3 years ago

Need help asap please

Mathematics

1 answer:

ycow [4]3 years ago

3 0

I think the answer is D. Correct me if i’m wrong.

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Firlakuza [10]

The first one includes both

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3 years ago

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How do you order 1.3, 1 1/3,1.34 from least to greatest

natka813 [3]

Convert all to a decimal, getting you 1.3, 1.333, and 1.34. Compare them and decide which one is the least (1.3), then the next least (1 1/3), and finally the greatest 1.34.

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4 years ago

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Please help!!<br> 16. 34x^4y^3 – 17x^2y^5<br> 17. 20p^2 – 16p^2 q^2<br> 18. 35m^3n + 105m^2n^3

EastWind [94]

Answer:

35m^3n + 105m^2n^3=140m^5n^3

34x^4y^3 – 17x^2y^5=17×^6y^8

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3 years ago

How far away from zero on the y-axis is the point (2,5)?

Alik [6]

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Step-by-step explanation:

5 is the second number which is the y value

8 0

3 years ago

Water flows at the rate of 5 m per minute through a cylindrical pipe, whose diameter is 7 cm. How long it will take to fill the

NARA [144]

Answer:

It will take 1200 hrs to fill the vessel.

Step-by-step explanation:

Given:

diameter of the base of the conical vessel = 21 m

radius of the base of the conical vessel r = $\frac{21}{2}\ m$

height of the conical vessel = 12 m

Now we know the formula of Volume of conical vessel

volume of the conical vessel = $\frac{1}{3} \pi r^2h$

Substituting the values we get;

volume of the conical vessel = $\frac{1}{3} \times \pi \times\frac{21}{2} \times \frac{21}{2} \times12 \ \ \ \ \ equation\ 1$

Also Given:

Diameter of Cylindrical pipe = 7 cm

Radius of Cylindrical pipe = $\frac{7}{2} \ cm$

Now we know that 1 cm = 0.01 m

Hence Radius of Cylindrical pipe = $\frac{7}{200} \ m$

Let the conical vessel is filled in x minutes.

Then, length if the water column = $5x\ m$

Hence water column forms a cylinder of length $5x\ m$ and radius $\frac{7}{200} \ m$

So, Volume of water that flows in x minutes is given by = $\pi r^2h$

Volume of Water that flows in x minutes = $\pi \times \frac{7}{200} \times \frac{7}{200} \times 5x$

We will find the value of x by saying volume of the conical vessel is equal to Volume of Water that flows in x minutes.

Hence,

$\frac{1}{3} \times \pi \times\frac{21}{2} \times \frac{21}{2} \times12 = \pi \times \frac{7}{200} \times \frac{7}{200} \times 5x$

$x=72000\ mins$

Since 1 hour = 60 min

$x = \frac{72000}{60}= 1200 \ hrs$

Hence it will take 1200 hrs to fill the vessel.

3 0

3 years ago

Need help asap please ​

Need help asap please