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3 years ago

What Does The Number was 25 in periodic

Mathematics

1 answer:

ivann1987 [24]3 years ago

7 0

Answer:

Manganese is a metal that is atomic number 25 on the periodic table with the element symbol Mn.

Step-by-step explanation:

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What is three ways to find 3 times 2 times 4?

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There are many ways to find 3 times 2 times 4

2*3*4
4*2*3
3*4*2
2*4*3
3*2*4
4*3*2

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3 years ago

The first one is brainlyist

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Answer:

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2 years ago

A box of cereal states that there are 75 calories in a

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The unit rate is 100 calories per cup

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3 years ago

A candle in the shape of a circular cone has a base of radius r and a height of h that is the same length as the radius. which e

ladessa [460]

Answer:

$\frac{r(1-\sqrt{2})}{-3}$

Step-by-step explanation:

Volume of cone = $\frac{1}{3} \pi r^{2} h$

Since we are given that a circular cone has a base of radius r and a height of h that is the same length as the radius

= $\frac{1}{3} \pi r^{2} \times r$

= $\frac{1}{3} \pi r^{3}$

Surface area of cone including 1 base = $\pi r^{2} +\pi\times r \times \sqrt{r^2+h^2}$

Since r = h

So, area = $\pi r^{2} +\pi\times r \times \sqrt{r^2+r^2}$

= $\pi r^{2} +\pi\times r \times \sqrt{2r^2}$

= $\pi r^{2} +\pi\times r^2 \times \sqrt{2}$

Ratio of volume of cone to its surface area including base :

$\frac{\frac{1}{3} \pi r^{3}}{\pi r^{2} +\pi\times r^2 \times \sqrt{2}}$

$\frac{\frac{1}{3}r}{1+\sqrt{2}}$

$\frac{r}{3(1+\sqrt{2})}$

Rationalizing

$\frac{r}{3(1+\sqrt{2})} \times \frac{1-\sqrt{2}}{1-\sqrt{2}}$

$\frac{r(1-\sqrt{2})}{-3}$

Hence the ratio the ratio of the volume of the candle to its surface area(including the base) is $\frac{r(1-\sqrt{2})}{-3}$

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3 years ago

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Simplify 5 - 2 · 3 + 4. 13 -5 3 21

Gre4nikov [31]

The answer is 3!

P.S. Brainliest would be awesome! i am trying to rank up and this will really help! i only need one more brainliest!

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3 years ago

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