Answer a series of essay questions in which you evaluate and analyze Joseph Stalin's 1941 speech. You must make judgments about the quality of the speaker's argument, examining how his biases, use of evidence, and logical fallacies affect the speech's overall point and purpose. ​

Answer:

x=11

Step-by-step explanation:

3x−45=−12

Add 45 to each side

3x−45+45=−12+45

3x = 33

Divide each side by 3

3x/3 = 33/3

x=11

Natural selection can cause microevolution (change in allele frequencies), with fitness-increasing alleles becoming more common in the population.

Fitness is a measure of reproductive success (how many offspring an organism leaves in the next generation, relative to others in the group).

Natural selection can act on traits determined by alternative alleles of a single gene, or on polygenic traits (traits determined by many genes).

Natural selection on traits determined by multiple genes may take the form of stabilizing selection, directional selection, or disruptive selection.

All of these mechanisms can make a population evolve, or change its genetic makeup over generations.

But there's one mechanism of evolution that's a bit more famous than the others, and that's natural selection. What makes natural selection so special? Out of all the mechanisms of evolution, it's the only one that can consistently make populations adapted, or better-suited for their environment, over time.

You may have already seen natural selection as part of Darwin’s theory of evolution. In this article, we will dive deeper – in fact, deeper than Darwin himself could go. We will examine natural selection at the level of population genetics, in terms of allele, genotype, and phenotype frequencies.

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The answer fοr this is Substitutiοn Prοperty

What is Substitutiοn Prοperty?  

The substitutiοn prοperty is a cοncept in algebra that is used tο substitute the value οf a given variable οr a quantity intο an expressiοn tο find the value οf the unknοwn. In simple wοrds, we can say that the substitutiοn prοperty is used tο replace the value οf a quantity in an equatiοn οr an expressiοn tο sοlve a mathematical prοblem. We will discuss the meaning οf the substitutiοn prοperty οf equality, the substitutiοn prοperty in geοmetry, and the direct substitutiοn prοperty in limits in the fοllοwing sectiοns.

Substitutiοn Prοperty is cοnsidered as οne οf the mοst intuitive οf the mathematical prοperties that yοu'll prοbably encοunter. Yοu may have been using substitutiοn withοut even knοwing it. This prοperty says that if x=y, then in any true equatiοn invοlving y, yοu can replace y with x, and yet yοu'll still have a true equatiοn.

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Take a loοk at the attached example shοwn below.

Answer:

n=5

Step-by-step explanation:

tan 45 = n/5

n=tan 45 × 5

n = 5

Answer:

Step-by-step explanation:

8. \(4\geq x+\frac{3}{4}\)

\(4(4\geq x+\frac{3}{4} )\)

\(16\geq 4x + 3\)

\(-3\)         \(-3\)

\(13\geq 4x\)

\(\frac{13}{4}\geq \frac{4x}{4}\)

\(\frac{13}{4} \geq x = x\leq \frac{13}{4}\)

\(x\leq \frac{13}{4}=3.25\)

9. \(x-3\leq -8\)

       \(+3\)     \(+3\)

\(x\leq -5}\)

10. \(4\leq x-7\)

  \(+7\)         \(+7\)

\(11\leq x=x\geq 11\)

11. 6.9 < x - 2.3

 + 2.3      + 2.3

 9.2 < x = x > 9.2

Hope this helps!

Answer:

Step-by-step explanation:

14

The linear equation for the line passing through the points (0, 9) and (13, 61) can be found using the slope-intercept form, which is y = 4x + 9, where 4 represents the slope and 6 represents the y-intercept.

To find the slope of the line, we use the formula:

m = (y2 - y1) / (x2 - x1)

Using the coordinates of the given points, we have:

m = (61 - 9) / (13 - 0) = 52 / 13 = 4

Now that we have the slope, we can determine the y-intercept, b, by substituting the values of one of the points into the slope-intercept form and solving for b. Let's use the point (0, 9):

9 = 4(0) + b

b = 9

Therefore, the linear equation for the line passing through the points (0, 9) and (13, 61) is:

y = 4x + 9

This equation represents a straight line where the y-coordinate is equal to four times the x-coordinate plus nine.

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The required percentage yield for the reaction when theoretical yield and actual yield are given is calculated to be 85.5 %.  

The maximum mass that can be generated when a particular reaction occurs is referred to as theoretical yield.

Theoretical yield is given as mt = 9.23 g

The actual amount of product recovered is given as ma = 7.89 g

We must comprehend that in order to calculate the reaction's percent yield, we must divide the total amount of product recovered by the utmost amount that can be recovered. If we multiply by 100%, we can represent this fraction as a percentage.

Percentage yield = ma/mt × 100 = 7.89/9.23 × 100 = 85.5 %

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Answer:

The actual distance between the houses is 18.9 miles.

Step-by-step explanation:

The exact question is as follows :

Given - On a​ map, 1 inch equals 5.4 miles. Two houses are 3.5 inches apart on the map.

To find - What is the actual distance between the​ houses?

Solution -

Given that,

1 inch = 5.4 miles

⇒3.5 inches = 3.5 × 5.4 miles

                 = 18.9 miles

∴ we get

The actual distance between the houses is 18.9 miles.

volume : 7.5 cm²

\(\hookrightarrow \sf Length \ * Width \ * \ Height\)

\(\hookrightarrow \sf 2 \ * 1\dfrac{1}{4} \ * \ 3\)

\(\hookrightarrow \sf 2 \ * \dfrac{5}{4} \ * \ 3\)

\(\hookrightarrow \sf \dfrac{15}{2}\)

\(\hookrightarrow \sf 7.5 \ cm^2\)

Answer:

\(\sf volume=7 \frac12 \ cm^3\)

Step-by-step explanation:

Formula

volume of cuboid = length × width × height

Given dimensions of the ice cube:

Substituting the given values into the formula:

\(\sf \implies volume=2\times 1 \frac14 \times 3\)

Converting to improper fractions:

\(\sf \implies volume=\dfrac21\times \dfrac54 \times \dfrac31\)

                  \(\sf =\dfrac{ 2\times 5 \times 3}{1 \times 4 \times 1}\)

                  \(\sf =\dfrac{30}{4}\)

Dividing the numerator and denominator by the highest common factor:

\(\sf \implies volume=\dfrac{30 \div 2}{4 \div 2}\)

                  \(\sf =\dfrac{15}{2}\)

Converting the improper fraction into a mixed number:

\(\sf \implies volume=7 \frac12 \ cm^3\)

Answer:

i) c. 1,08,00,000 cm³

ii) c. 1687.5 cm³

iii) b. 6400

Q.3) Suface area of cube is 294 cm².

Step-by-step explanation:

Q.2. 12 men are building a wall which is 8 m long, 6 m high and 22.5 cm thick using bricks. On this basis answer the following.

i. Find the volume of the cuboidal wall.

Substituting all the given values in the formula to find volume of cuboidal wall :

\( \begin{gathered}\qquad{\longrightarrow{\sf{V = LBH}}} \\ \\ \qquad{\longrightarrow{\sf{V = L \times B \times H}}} \\ \\ \qquad{\longrightarrow{\sf{V = 800 \times 600 \times 22.5}}} \\ \\ \qquad{\longrightarrow{\sf{V = 480000 \times 22.5}}} \\ \\ \qquad{\longrightarrow{\sf{\underline{\underline{\red{V = 1,08,00,000 \: {cm}^{3}}}}}}} \end{gathered}\)

Hence, the volume of cuboidal wall is 1,08,00,000 cm³.

———————————————————————

ii. If the dimension of each brick is 25 cm × 11.25 cm × 6 cm, then find the volume of the brick.

Substituting all the given values in the formula to find the volume of cuboidal brick :

\( \begin{gathered}\qquad{\longrightarrow{\sf{V = LBH}}} \\ \\ \qquad{\longrightarrow{\sf{V = L \times B \times H}}} \\ \\ \qquad{\longrightarrow{\sf{V = 25 \times 11.25\times 6}}} \\ \\ \qquad{\longrightarrow{\sf{V = 281.25\times 6}}} \\ \\ \qquad{\longrightarrow{\sf{\underline{\underline{\pink{V = 1687.5 \: {cm}^{3}}}}}}} \end{gathered}\)

Hence, the volume of cuboidal brick is 1687.5 cm³.

————————————————————

iii. How many bricks will be required to construct the cuboidal wall.

Substituting all the given values in the formula to find the number of bricks :

\( \begin{gathered} \quad{\longrightarrow{\sf{No. \: of \: bricks = \dfrac{Volume \:of \: wall}{Volume \: of \: brick}}}}\\ \\ \quad{\longrightarrow\sf{No.\: of \: bricks = \dfrac{10800000}{1687.5}}} \\ \\ \quad{\longrightarrow{\sf{No. \: of \: bricks = \cancel{\dfrac{10800000}{1687.5}}}}} \\ \\ \quad{\longrightarrow{\sf{\underline{\underline{\purple{No. \: of \: bricks = 6400}}}}}}\end{gathered}\)

Hence, 6400 bricks will be required to construct the cuboidal wall.

———————————————————————

Q.3 The volume of a cube is 343 cm³. Fibd its surface area.

For clear understanding please check the given attachment.

\(\rule{300}{2.5}\)

Answer: C

Step-by-step explanation:

For A, look at the slope of the graph: 70/2 = 35

For B, slope calculation: m = y-y / x-x = 315-105 / 9-3 = 35

=> C

Answer:

I think Thts the answer

Step-by-step explanation:

(12x4)-3

The 90% confidence interval for the class is [73.49, 76.51].

Confidence interval is defined as the range of values where a parameter might fall at a given confidence level. It can be calculated using the formula below.

CI = μ ± z x SD/√n

where CI = confidence interval

μ = sample mean = 75

z = found by using a z-score table

SD = sample standard deviation = 5

n = sample size = 30

At 90% confidence level, the area in each tail of the standard normal curve is 5, and the cumulative area up to the second tail is 95.

(100 - 90) / 2 = 5

100 - 5 = 95

Find 0.95 in the z-table to get the value of z.

At p = 0.95, z = 1.65

Plug in the values to the formula for confidence interval, CI.

CI = μ ± z x SD/√n

CI = 75 ± 1.65 x 5/√30

CI = 75 ± 1.51

CI = [73.49, 76.51]

Hence, for every 100 samples, at 90% confidence level, the mean will be between 73.49 and 76.51.

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The probability that a randomly selected coffee drinker does not use sugar or cream is \(1 - p^2.\)

To find the probability that a randomly selected coffee drinker does not use sugar or cream, we need to find the probability of the complement of the event (C or S).

That is, we need to find the probability of the coffee drinker not using cream and not using sugar.
We can use the formula P(not C and not S) = P(not C) * P(not S|not C),

where P(not C) is the probability of not using cream and P(not S|not C) is the conditional probability of not using sugar given that the coffee drinker does not use cream.
Since we do not have any information about the probabilities of using cream and sugar, we cannot find the exact probabilities.

However, we can assume that the probabilities are equal and use the complement rule, which states that P(not C or not S) = 1 - P(C and S).
Since we do not have any information about the joint probability of using cream and sugar, we can assume that the events C and S are independent. Therefore, P(C and S) = P(C) * P(S).
Assuming that P(C) = P(S) = p, we have P(not C or not S) = 1 - P(C and S) \(= 1 - p^2\)

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Answer:

-41/12 or -3 5/12

Step-by-step explanation:

4*2 +1 = 9,  5 * 3 + 2 = 17

9/4 - 17/3

27/12 - 68/12

= -41/12 or -3 5/12

The angle in degrees used to indicate the b region is 70.

The total number of students= Sum of the number of students with different grades and the failed ones.

                                          = 50+75+114+98+50

                                          = 387

Now,

The number of students in b region, that is, those who got b's

=75      (given)

We know that,

The sum of all angles due to different grades in the pie chart = 360 degrees.

So the distribution of degrees to b region in the pie chart will be in proportion to the number of students in b region out of total students

Let x degrees be used to indicate the "b" region.

∴ x/360=75/387              (because of the same proportion)

⇒x=75/387×360

⇒x=69.76≅70

Hence, the angle in degrees used to indicate the b region is 70.

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Susan would charge $7.50 to babysit 5 kids.

The unitary method is used to calculate the value of a single unit from a given multiple. If the cost of 40 pens is Rs. 400, how do you calculate the value of one pen? The unitary method can be used to accomplish this. Furthermore, once we've determined the value of a single unit, we can multiply that value by the number of units needed.

Given,

Amount charged for 3 kids =$4.50

then,

Amount charged for 1 kid will be \(\frac{4.50}{3}=$1.50\)

now, amount charge to babysit 5 kids =1.50*5=$7.50

Thus, Susan would charge $7.50 to babysit five children..

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Your answer is attached above. hope it helps

The percentage of data within 2 standard deviations of the mean is given as follows:

100%.

Using a calculator, the measures for this problem are given as follows:

The bounds within two standard deviations of the mean are given as follows:

All the measures in this problem are within these bounds, hence the percentage is of 100%.

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D) g(x) is exponential; an exponential function increases faster than a linear function.

To determine which function is exponential, find the rate of change between the different years for each function.

An exponential function will have a constant rate of change over time, while a linear function will have a constant slope.

Looking at the table, we can calculate the rate of change between each year for both f(x) and g(x).

Here we have

x                   f(x)         g(x)

1995    69,682.50    72,429.27

2000   78,943.50   79,967.77

2005   88,204.50   88,290.88

2006   90,056.70   90,056.70

2007    91,908.90   91,857.83

2010    97,465.50  97,480.27  

Calculate the rate increase the both cases

From f(x)  

For the years 1995 to 2000

=  [78,943.50 - 69,682.50 ]/ 69,682.50 x 100  = 13.3%

For the years 2000 to 2005

= [88,204.50 - 78943.50]/ 78943.50 × 100 = 11.73  

For g(x)

For the years 1995 to 2000

= [ 79,967.77 - 72,429.27]/ 72,429.27× 100 = 10.40  

For the years 2000 to 2005

= [ 88,290.88 - 79,967.77]/79,967.77  × 100 = 10.40  

Here we can observe that the rate of increase in g(x) is constant whereas in f(x) the rate of increase is decreasing

Hence we can conclude that

D) g(x) is exponential; an exponential function increases faster than a linear function.

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Multiplying these values, we get 20x3=60. Therefore, it will take 60 unit cubes to completely fill the rectangular prism.

To find the number of unit cubes required to completely fill the rectangular prism, we need to know the total number of unit cubes that can fit inside the prism. We can determine this by counting the number of unit cubes that can fit in one layer of the prism, and then multiplying it by the number of layers in the prism.

Let's assume that the dimensions of the rectangular prism are length (L), width (W) and height (H), and that it is partially filled with unit cubes. We can count the number of unit cubes in one layer of the prism by multiplying L by W. This gives us the area of the base of the prism, which is the number of unit cubes that can fit in one layer.

Next, we need to count the number of layers in the prism. This is simply the height (H) of the prism. Once we have both these values, we can multiply them to find the total number of unit cubes required to fill the prism.

For example, if the dimensions of the rectangular prism are L=4, W=5 and H=3, and it is partially filled with unit cubes, we can count the number of unit cubes in one layer as 4x5=20. The number of layers in the prism is 3. Multiplying these values, we get 20x3=60. Therefore, it will take 60 unit cubes to completely fill the rectangular prism.

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Answer:

0.04 or 4%

Step-by-step explanation:

-A fraction consists of two numbers and a fraction bar: 0.5/12.5

- The number above the bar is the numerator: 0.5

The number below the bar is the denominator: 12.5

-Divide the numerator by the denominator to get fraction's value: Val = 0.5 ÷ 12.5

Calculate fraction's value.

Divide the numerator by the denominator to get fraction's value:

0.5 ÷ 12.5

= 0.04

Note:100/100 = 100 ÷ 100 = 100% = 1Multiply a number by the fraction 100/100,... and its value doesn't change.0.04 =

= 0.04 × 100/100

= (0.04 × 100)/100

= 4/100

= 4%;

1) Calculate fraction's value.

2) Multiply that number by 100.

3) Add the percent sign % to it.

Answer:

0.5÷12.5 = 4%

Answer:

7/16

Step-by-step explanation:

The growth factor that could be used to model the population will be 1.04. Then the correct option is D.

Consider the function:

y = a (1 ± r) ˣ

Where x is the number of times this growth/decay occurs, a = initial amount, and r = fraction by which this growth/decay occurs.

If there is a plus sign, then there is exponential growth happening by r fraction or 100r %.

If there is a minus sign, then there is exponential decay happening by r fraction or 100r %.

The population is increasing by 4% per year.

Then the growth factor that could be used to model the population will be

Growth factor = (1 + 4%)

Growth factor = (1 + 0.04)

Growth factor = 1.04

The growth factor that could be used to model the population will be 1.04.

Then the correct option is D.

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Answer:

a rod is 16 1/2 feet long, so 13 x 16.5= 214.5 feet

Indexing blogs, labeling blogs and tagging entries are effective techniques for increasing people's ability to find your business blogs and wikis.

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Labelling blogs is advantageous since it enables you to give your blog entries keywords and subjects, which makes it simpler for search engines to find your content.

By tagging entries, you can connect relevant subjects and give readers a longer means of research. All of these strategies are crucial for enhancing discoverability and ensuring that your company's blogs and wikis get viewed by the target audience.

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The ordered pairs that could be points on a parallel line are:

(-8, 8) and (2, 2)

(-2, 1) and (3, -2)

Parallel lines have the same slope. Thus, we have to find ordered pairs with a slope of -3/5.

We have:

slope of the line is -3/5.

Thus, m = -3/5

Formula for slope between two coordinates is;

m = (y₂ - y₁)/(x₂ - x₁)

A) At (–8, 8) and (2, 2);

m = (2 - 8)/(2 - (-8))

m = -6/10

m = -3/5

B) At (–5, –1) and (0, 2);

m = (2 - (-1))/(0 - (-5))

m = 3/5

C) At (–3, 6) and (6, –9);

m = (-9 - 6)/(6 - (-3))

m = -15/9

m = -5/3

D) At (–2, 1) and (3, –2);

m = (-2 - 1)/(3 - (-2))

m = -3/5

E) At (0, 2) and (5, 5);

m = (5 - 2)/(5 - 0)

m = 3/5

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