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2 years ago

What is the volume of a sphere with a radius of 3 inches?

Mathematics

2 answers:

Contact [7]2 years ago

4 0

Answer:

Step-by-step explanation:

Nezavi [6.7K]2 years ago

4 0

Answer: The answer is (C) 36π cubic inches.

Step-by-step explanation: We are given to find the volume of a sphere with radius 3 inches.

We know that the volume of a sphere with radius 'r' units is given by

$V=\dfrac{4}{3}\pi r^3.$

Here, we have,

radius, r = 3 inches.

Therefore, the volume of the sphere is given by

$V\\\\=\dfrac{4}{3}\pi r^3\\\\=\dfrac{4}{3}\pi \times 3^3\\\\=\dfrac{4}{3}\pi \times 27\\\\=36\pi~\textup{cubic inches}.$

Thus, (C) is the correct option.

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A factory robot recently examined some bulbs, of which 2 were flawed and 18 were not. If 30 more bulbs are examined, predict how

Oksanka [162]

Answer:

3 bulbs should be flawed

Step-by-step explanation:

2+ 18 = 20

20 bulbs were examined

2/20 = 1/10 were flawed

looking at the next 30 bulbs

30 * 1/10 = 3

3 of the next 30 bulbs should be flawed

5 0

3 years ago

NEED HELP ASAP Given G (-6,5) and H (2, -7), what is the length of GH

lesya692 [45]

$\bold{\huge{\green{\underline{ Solution }}}}$

$\bold{\underline{ Given}}$

We have given that the coordinates of the end point G and H are ( -6,5) and ( 2, -7 )

$\bold{\underline{To \: Find :- }}$

We have to find the length of GH

$\bold{\underline{Let's \: Begin :- }}$

The coordinates of G = ( -6 , 5 )

The coordinates of H = ( 2 , - 7 )

According to the distance formula, we get :- 

$\purple{\bigstar}\boxed{\sf{Distance\:\:GH=\sqrt{(x_1-x_2)^2+(y_1-y_2)^2\;}}}$

Here, x1 = -6 , x2 = 2 and y1 = 5 , y2 = -7

Subsitute the required values in the above formula 

$\sf{ Distance \:GH = √( -6 - 2)² + ( 5 -(-7))²}$

$\sf{Distance\:GH= √(-8)^2+(5 + 7)^2}$

$\sf{Distance\:GH=√(-8)^2+(12)^2}$

$\sf{ Distance \:GH =√64 + 144 }$

$\sf{ Distance \:GH =√ 208}$

$\sf{ Distance\: GH = √ 2 × 2 × 2 × 2 × 13}$

$\sf{ Distance \:GH = 4√13}$

$\sf{\red{ Hence\: the \: length\:of \: GH \: is \: 4√13 \: units}}$

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2 years ago

Please Help ASAP!!!!!!!!

ioda

Answer:

2 i think

Step-by-step explanation:

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Answer:

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Step-by-step explanation:

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3 years ago

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I did 12 squared + 16 squared = 400 and then I did √400 = 20 so y = 20. Is this answer correct?

Nuetrik [128]

Yes its correct you did well :)

3 0

2 years ago