What is the volume of a hemisphere with a radius of 9.7 cm, rounded to the nearest tenth of a cubic centimeter? please i need help ill do a zoom call and i'll give you all my Branly points if uu help me.

Answers

Answer 1
Answer:

The volume of a hemisphere is 1910.52 cm^(3).

What is volume of a hemisphere?

A hemisphere is half of a full sphere, we can calculate the volume of a hemisphere just by halving the volume of the complete sphere.

So, we can calculate the volume of a hemisphere by using the following formula,

$V=(2)/(3)\pi {{r}^(3)}$

Here, r is the radius, V is the volume of hemisphere.

So,

It is given that the radius is 9.7 cm.

We have to find V.

So,

$V=(2)/(3)\cdot 3.14\cdot {{\left( 9.7 \right)}^(3)}$

V=1910.52

Hence, the volume of hemisphere is $1910.52\text{ c}{{\text{m}}^(3)}$.

Learn more about volume of hemisphere here,

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Answer 2
Answer:

Answer:

volume of hemisphere =1912.26cm^3

Step-by-step explanation:

radius(r)=9.7cm

now volume of hemisphere=(2/3)πr^(3)

                                           =(2/3)*(22/7)*(9.7)^3

                                            =(2/3)*(22/7)*912.673

                                              =(2/3)*2868.40086

                                             =1912.26cm^3


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Answer:

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Step-by-step explanation:

Answer:

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Step-by-step explanation:

Word problem in Algebra - Two boys, Shawn and Curtis, went for a walk, Shawn began walking 20 seconds earlier than Curtis. Shawn walked at a speed of 5 feet per second. Curtis walked at a speed of 6 feet per second. For How many seconds had Shawn been walking at the moment when the two boys had walked the same distance?

Answers

So first you should simplify it.
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Answers

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Answers

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Assume that women's heights are normally distributed with a mean given by u = 64.3 in, and a standard deviation given by 0 = 2.7 in. (a) f 1 woman is randomly selected, find the probability that her height is less than 65 in. (b) if 43 women are randomly selected, find the probability that they have a mean heightless than 65 in. (a) The probability is approximately I. (Round to four decimal places as needed.) 4

Answers

Answer:

0.9533

Step-by-step explanation:

(a) Probability that a randomly selected woman's height is less than 65 inches:

Using the z-score formula:

=

Z=

σ

X−μ

Where:

X = 65 inches

μ = 64.3 inches

σ = 2.7 inches

=

65

64.3

2.7

0.2593

Z=

2.7

65−64.3

≈0.2593

Now, find the probability associated with this z-score, which is approximately 0.6010 (rounded to four decimal places).

(b) Probability that the mean height of 43 randomly selected women is less than 65 inches:

Using the Central Limit Theorem:

μ (mean of the sample means) remains 64.3 inches.

sample mean

σ

sample mean

 (standard deviation of the sample means) is calculated as

2.7

43

0.4115

43

2.7

≈0.4115.

Now, find the z-score for a sample mean of 65 inches:

=

65

64.3

0.4115

1.6924

Z=

0.4115

65−64.3

≈1.6924

The probability associated with this z-score is approximately 0.9533 (rounded to four decimal places).