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2 years ago

Work out the volume of a sphere please help i’ll give u brainlest

Mathematics

2 answers:

Assoli18 [71]2 years ago

8 0

Answer:

$3591.4{cm}^{3}$

Step-by-step explanation:

$v = \frac{4}{3} \pi {r}^{ 3} \\ = \frac{4}{3} \times \pi \times 9.5 \times 9.5 \times 9.5 \\ = 3591.4 \\$

Doss [256]2 years ago

7 0

Answer:

V = 3591.4 cm³

Step-by-step explanation:

Volume of Sphere = $\frac{4}{3} \pi r^3$

Where r = 9.5 cm

V = $\frac{4}{3} (3.14)(9.5)^3$

V = $\frac{4}{3} (3.14)(857.4)$

V = $\frac{10774}{3}$

V = 3591.4 cm³

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Messages arrive to a computer server according to a Poisson distribution with a mean rate of 11 per hour. Determine the length o

Zarrin [17]

Answer:

The length of the interval during which no messages arrive is 90 seconds long.

Step-by-step explanation:

Let X = number of messages arriving on a computer server in an hour.

The mean rate of the arrival of messages is, λ = 11/ hour.

The random variable X follows a Poisson distribution with parameter λ = 11.

The probability mass function of X is:

$P(X=x)=\frac{e^{-11}11^{x}}{x!};\ x=0,1,2,3....$

It is provided that in t hours the probability of receiving 0 messages is,

P (X = 0) = 0.76

Compute the value of t as follows:

$P(X=0)=\frac{e^{-11\times t}(11\times t)^{0}}{0!}\\0.76=e^{-11\times t}\\\ln(0.76)=-11\times t\\t=-\frac{\ln(0.76)}{11} \\=0.025\ hours\\\approx90\ seconds$

Thus, the length of the interval during which no messages arrive is 90 seconds long.

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3 years ago

Javier is buying food in the lunch line . The tray of salad plates is 3/8 full . The tray of fruit plates is 3/4 full . Which tr

Marina CMI [18]

.. Please... Please tell me you know fractions at least well enough to know this ;_;

3/4 is like 0.75, yeh?
3/8 is like.. 0.365

Change the Denominator (Bottom Number in Fraction) so they're the same:
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Now d'you see?

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2 years ago

Read 2 more answers

Mrs. Arnold took a survey of the types of pants her students were wearing. She collected the data below. What percent of her stu

SOVA2 [1]

Answer:

36%

Step-by-step explanation:

Jeans: 14

Shorts: 9

Capris: 2

Total number of students = Number of Jeans + Number of Shorts + Number of Capris

Total number of students = 14 + 9 + 2 = 25

% of students wearing shorts = Number of shorts / Total number of students * 100

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2 years ago

What’s 8.293 rounded to the hundredths

anzhelika [568]

Answer:

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Step-by-step explanation:

It is 8.29 because the 3 is not greater than a 5, therefore it does not get rounded up.

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3 years ago

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Gabby left the mall and drove north. Violet left 3 hours later, driving 36 mph faster to catch up with Gabby. After 2 hours, she

Archy [21]

Answer:

24mph

Step-by-step explanation:

24 mph times 5 hours = 120 miles

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60 mph × 2 hours = 120 miles

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2 years ago