3 years ago

PLZ HELP I NEED THE ANSWER

Mathematics

2 answers:

Yakvenalex [24]3 years ago

7 0

Answer:

D I belive

Step-by-step explanation:

Anna71 [15]3 years ago

4 0

Answer:

i think its a

Step-by-step explanation:

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The Great Pyramid of Giza is a square pyramid located by el Giza, Egypt. It is believed that the original height of the pyramid

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Volume of one pyramid = 408.6*(755.9*755.9)*1/3
volume of 3 pyramids= 3*408.6*(755.9*755.9)=700,403,500.11*1/3=233,467,833.37
reasoning 3 square base pyramid = 1 cuboid

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3 years ago

A silo is formed by a cylinder with a hemisphere at the top. If the height of the silo is 10 m and the radius is 3 m, what is th

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V=282.74m³

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A cylinder with a radius of 1 cm and a height of 21 cm has the same volume as a cone with a height of 7 cm. What is the radius o

Natasha_Volkova [10]

Answer:

Step-by-step explanation:

The formula of a volume of a cylinder:

$V=\pi r^2H$

r - radius

H - height

We have r = 1cm and H = 21cm. Substitute:

$V=\pi(1^2)(21)=21\pi\ cm^3$

The formula of a cone:

$V=\dfrac{1}{3}\pi r^2H$

r - radius

H - height

We have V = 21π cm³ and H = 7cm. Substitute:

$\dfrac{1}{3}\pi(r^2)(7)=21\pi$ <em>divide both sides by π</em>

$\dfrac{1}{3}(7)(r^2)=21$ <em>divide both sides by 7</em>

$\dfrac{1}{3}r^2=3$ <em>multiply both sides by 3</em>

$r^2=9\to r=\sqrt9\\\\r=3\ cm$

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3 years ago

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Phillip put together 981 pieces of a puzzle. About how many pieces did he put together? Round to the nearest thousand .

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The asnwer would be 1,000 puzzle pieces

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Answer:

A.(4,0)

Step-by-step explanation:

APEX

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