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ch4aika [34]
3 years ago
13

Question down below thxx!!!!

Mathematics
1 answer:
Eva8 [605]3 years ago
5 0
<h2><u>AnswEr :</u> </h2>

Total Surface Area of a Cylinder is : 2πr(r + h)

Given that,

  • Height of the Cylinder (r) = 15 inches

  • Diameter of the Base (d) = 12 inches

  • Radius would be : d/2 = 6 inches

Now,

\sf \: 2\pi r(r + h) \\  \\  \longrightarrow \:  \sf \: 2 \times 6\pi \times (15 + 6) \\  \\  \longrightarrow \:  \sf \: 12\pi \times 21 \\  \\  \longrightarrow \:  \sf \: 252\pi

<h3>Option (4) is correct</h3>

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The number of violent crimes committed in a day possesses a distribution with a mean of 2.3 crimes per day and a standard deviat
marusya05 [52]

Answer:

B) approximately normal with mean 2.3 and standard deviation 2

Step-by-step explanation:

Given the following :

Mean crimes per day = 2.3

Standard deviation = 2

Number of samples = 100

Sampling distribution of the mean:

According to the central limit theorem:

Sample mean = population mean

2.3 = 2.3

The standard deviation of the sample (s) : ratio of the population standard deviation and square root of the sample size.

s = population standard deviation / √sample size

s = 2 / √100

s = 2 / 10

s = 0.2

The central limit theorem also posits that once ths sample size is large enough, the sampling of the sample mean will be approximately normal.

Hence, the distribution is approximately normal, with mean of 2.3 and standard deviation of 0.2

7 0
3 years ago
A recipe requires 1/5 cup of sugar and 1/2 cup of flour. How many times as much flour is required for the recipe as sugar?
Damm [24]

Answer:

2.5 times

Step-by-step explanation:

To compare the two quantities, find a common denominator.

1/5 is 2/10 of sugar.

1/2 cup of flour is 5/10 of flour.

There is almost 3 times as much flour as sugar. 5/ 2 = 2.5. It is 2.5 times as much.

6 0
3 years ago
I need help with this equation it's confusing
enyata [817]

3 - 4x= -89 is the equation i hope it's right

5 0
3 years ago
Read 2 more answers
Which relation is a function?
LenaWriter [7]

Answer:

The top right

Step-by-step explanation:

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6 0
2 years ago
ANSWER FOR BRAINLEST
ra1l [238]

Answer:

20π or 62.8

Step-by-step explanation:

Volume of a cone = 1/3πr²h

1/3(π)(2)²9

= 12π or 37.7

Volume of a hemisphere = 2πr²/3

2(π)(2)²

= 8π or 25.1

Total Volume = 20π or 62.8

6 0
3 years ago
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