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2 years ago

Find the volume of each question in the picture:

Mathematics

1 answer:

Kisachek [45]2 years ago

8 0

Answer:

21.V=1746.1

22.V=1922.7

23.V=54.4

Step-by-step explanation:

V=h*w*l V=pir^2*h

V=12*8*14 . V=pi*4^2*8

V=1344 . V=402.1

V1+V2=1344+402.1=1746.1

V=pi*r^2*h V=2/3*pi*r^3

V=pi*6^2*13 V=2/3*pi*6^3

V=pi*36*13 V=2/3*pi*216

V=1470.3 V=452.4

V1+V2=1470.3+452.4=1922.7

V=1/3pi*r^2*h V=1/3pi*r^2*h

V=1/3pi*2^2*6 V=1/3pi*2^2*7

V=8pi V=28/3pi

V=25.1 . V=29.3

V1+V2=25.1+29.3=54.4

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A growth medium is inoculated with 1,000 bacteria, which grow at a rate of 15% each day. What is the population of the culture 6

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Answer:

The population of bacteria after 6 days is 2,313.06

Step-by-step explanation:

Given as :

The initial population of bacteria = i = 1,000 bacteria

The growth rate of bacteria per day = 15%

Let The population of bacteria after 6 days = f

The time period of growth = 6 days

<u>Now, According to question</u>

The population of bacteria after 6 days = initial population × $(1+\dfrac{\textrm rate}{100})^{\textrm time}$

Or, f = i × $(1+\dfrac{\textrm r}{100})^{\textrm t}$

Or, f = 1000 × $(1+\dfrac{\textrm 15}{100})^{\textrm 6}$

Or, f = 1000 × $(1.15)^{6}$

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3 years ago

What is the triangle numbers from 1 and 100

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Answer:

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Step-by-step explanation:

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2 years ago

Read 2 more answers

In 2018, Mike Krzyewski and John Calipari topped the list of highest paid college basketball coaches (Sports Illustrated website

expeople1 [14]

From the data given, we estimate the population mean and population standard deviation. Then, we use this estimate to find a 95% confidence interval for the population variance and the population standard deviation.

Sample:

Salaries in millions of dollars: 2.2, 1.5, 0.5, 1.3, 2.4, 1.5, 2.7, 0.3, 2.0, 0.3

Question a:

The mean is the sum of all values divided by the number of values. So

$\overline{x} = \frac{2.2 + 1.5 + 0.5 + 1.3 + 2.4 + 1.5 + 2.7 + 0.3 + 2.0 + 0.3}{10} = 1.42$

The sample mean salary is of 1.42 million.

Question b:

The standard deviation is the square root of the difference squared between each value and the mean, divided by one less than the number of values.

$s = \sqrt{\frac{(2.2-1.42)^2 + (1.5-1.42)^2 + (0.5-1.42)^2 + (1.3-1.42)^2 + (2.4-1.42)^2 + (1.5-1.42)^2 + (2.7-1.42)^2 + ...}{9}} = 0.8772$