3 years ago

Someone pls help with this

Mathematics

1 answer:

avanturin [10]3 years ago

6 0

bahagi diego Gifu Isidro Baidu

bbjv

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What is the volume of a hemisphere with a radius of 2.3m round to the nearest tenth of a cubic meter

kodGreya [7K]

Answer: $25.5 m^{3}$

Step-by-step explanation:

If the volume of a sphere is

$V=\frac{4}{3} \pi r^{3}$

Where $r=2.3 m$ is the radius

The volume of a hemisphere is half the volume of the total sphere:

$V_{hemisphere}=\frac{V}{2}=\frac{\frac{4}{3} \pi r^{3}}{2}$

$V_{hemisphere}=\frac{2}{3} \pi r^{3}$

Solving this equation:

$V_{hemisphere}=\frac{2}{3} \pi (2.3 m)^{3}$

Finally:

$V_{hemisphere}=25.48m^{3} \approx 25.5 m^{3}$

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3 years ago

A line is subdivided according to the golden ratio, with the smaller piece having a length of 8 meters. What is the length of th

maks197457 [2]

Answer:

the entire length is 202.25 or 203 when rounded to the nearest number.

Step-by-step explanation:

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3 years ago

Please help i’ll give brainliest

Luba_88 [7]

In a 45 - 45 - 90 right triangle, the hypotenuse is √2 · legs = hypotenuse, so legs= $\frac{\sqrt{5}}{\sqrt{2}}$ and to rationalize the denominator all we have to do is multiply the numerator and denominator by √2. $\frac{\sqrt{10}}{2}$ .

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Explanation

100
X
20
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2000

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If two lines have an identical slope, and are 3 units apart on the x-axis, where will they cross?

Firlakuza [10]

Answer:

Step-by-step explanation:

If the lines have identical slopes then they are parallel and do not intersect.

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