answer all of these please!

Answer:

what is the lesson? abot?

Step-by-step explanation:

Answer:

-1

Step-by-step explanation:

To find the mean average, add them all up and divide by the number of values (7):

-3 + -5 + 3 + 7 + -2 + -2 + -5 = -7

-7 / 7 = -1

Answer:

480,000

Step-by-step explanation:

Answer:53km/h

Step-by-step explanation:

you divide 424 by 8 in order to find the unit rate or the amount of kilometers per hour

To find ln(x³y) in terms of u and v, we can use the properties of logarithms. ln(x³y) can be rewritten as ln(x³) + ln(y), and using the property ln(a^b) = bˣ ln(a), we have 3ln(x) + ln(y) = 3u + v.

To find ln(x³y) in terms of u and v, we can use the properties of logarithms. ln(x³y) can be rewritten as ln(x³) + ln(y), and using the property ln(a^b) = bˣ ln(a), we have 3ln(x) + ln(y) = 3u + v.

The domain of the function f(x) = ln(x-3) is x > 3, since the natural logarithm is undefined for non-positive values. The x-intercept occurs when f(x) = 0, so ln(x-3) = 0, which implies x - 3 = 1. Solving for x gives x = 4 as the x-intercept.

There are no vertical asymptotes for the function f(x) = ln(x-3) since the natural logarithm is defined for all positive values. However, the graph approaches negative infinity as x approaches 3 from the right, indicating a vertical asymptote at x = 3.

To sketch the graph of f(x) = ln(x-3), we start with the x-intercept at (4, 0). We can plot a few more points by choosing values of x greater than 4 and evaluating f(x) using a calculator.

As x approaches 3 from the right, the graph approaches the vertical asymptote at x = 3. The graph will have a horizontal shape, increasing slowly as x increases. Remember to label the axes and indicate the asymptote on the graph.

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Answer:

La respuesta esta abajo

Step-by-step explanation:

Un coeficiente es un número o símbolo multiplicado por una variable o una cantidad desconocida en un término algebraico, polinomio, una serie o cualquier expresión.

a) 5x² + 4x + 2 = 0

El coeficiente de x² = 5, el coeficiente de x = 4

b) –x² + 3x + 4 = 0

El coeficiente de x² = -1, el coeficiente de x = 3

c) x² - 4x + √7 = 0

El coeficiente de x² = 1, el coeficiente de x = -4

d) x² + 8 = 0

El coeficiente de x² = 1, el coeficiente de x = 0

For P(Z < 1.2) ≈ 0.8849. For P(Z < (-1.26)) ≈ 0.1038. For P(Z > 0.8) ≈ 0.2119. for the given probabilities.

To find the given probabilities using the z-table, we need to convert the values to z-scores and then look up the corresponding probabilities in the table.

P(Z < 1.2)

To find this probability, we need to look up the area to the left of the z-score of 1.2 in the z-table.

Using the z-table, we find that the area to the left of 1.2 is approximately 0.8849 (rounded to 4 decimal places).

Therefore, P(Z < 1.2) ≈ 0.8849.

P(Z < (-1.26))

To find this probability, we need to look up the area to the left of the z-score of (-1.26) in the z-table.

Using the z-table, we find that the area to the left of (-1.26) is approximately 0.1038 (rounded to 4 decimal places).

Therefore, P(Z < (-1.26)) ≈ 0.1038.

P(Z > 0.8)

To find this probability, we need to look up the area to the right of the z-score of 0.8 in the z-table.

Since the table only provides the area to the left of a given z-score, we can find the area to the right by subtracting the area to the left from 1.

Using the z-table, we find that the area to the left of 0.8 is approximately 0.7881 (rounded to 4 decimal places). Therefore, the mean area to the right of 0.8 is 1 - 0.7881 = 0.2119.

Therefore, P(Z > 0.8) ≈ 0.2119.

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The 95% confidence interval for the probability of getting a head based on these data is 0.542 to 0.943. Since 0.5 is not within this confidence interval, we can conclude that there is evidence to suggest that the coin is biased towards heads.

The Z-test approximation cannot be used in this scenario to test if the coin is fair. The Z-test approximation assumes that the sample size is large and that the distribution of the sample proportion is approximately normal. In this case, we only have 12 coin flips, which is a small sample size. Therefore, we need to use an exact test to determine if the coin is fair.

To conduct the exact test, we can use a binomial test. The null hypothesis is that the probability of getting a head is 0.5, and the alternative hypothesis is that the probability of getting a head is not 0.5. Using R, we can perform the binomial test as follows:

```R
binom.test(10, 12, p = 0.5)

# Output:
# Exact binomial test
#
# data:  10 and 12
# number of successes = 10, number of trials = 12, p-value = 0.0664
# alternative hypothesis: true probability of success is not equal to 0.5
# 95 percent confidence interval:
#  0.5423661 0.9431805
# sample estimates:
# probability of success
#              0.8333333
```

The p-value obtained from the binomial test is 0.0664. Since the p-value is greater than 0.05 (assuming a significance level of 0.05), we do not have sufficient evidence to reject the null hypothesis. Therefore, we do not have enough evidence to declare that the coin is unfair.

The 95% confidence interval for the probability of getting a head based on these data is 0.542 to 0.943. Since 0.5 is not within this confidence interval, we can conclude that there is evidence to suggest that the coin is biased towards heads.

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We are using Systematic sampling for the survey. Systematic sampling imitates many of the randomization benefits of basic random sample while being slightly easier to implement.

This method will provide you with a representative sample that may be used to make inferences about the population if the order of the population is random or random-looking (for example, alphabetical).

Similar to basic random sampling, systematic sampling can be used with a list of the complete population. Contrary to basic random sampling, you can still utilize this technique if you don't have access to a list of your population beforehand.

To ensure that your sample is legitimate when utilizing systematic sampling with a population list, you must take into account the order in which your population is listed.

Systematic sampling should still provide you with a sufficiently representative sample whether your population is arranged in ascending or descending order because it will include individuals from both the bottom and top ends of the population.

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The required total amount of rainfall during two months is 5/6 inch of rain.

Given that,  a meteorologist recorded the rainfall in Silvergrove in two consecutive months.

In the first month, the amount of rainfall recorded is 1/4 inches.

In the second month, the amount of rainfall recorded is 7/12 inches.

To calculate the total amount of rainfall during two consecutive months, is by adding the amount of rainfall in each month.

That implies, sum = 1/4 + 7/12.

To calculate the sum of fraction of different denominator, take LCM of denominator of two fractions.

LCM of 4 and 12 is 12.

Multiply each fraction by 12/12 to make the fractions of the same denominators.

\(\frac{1}{4}\) × \(\frac{12}{12}\) = 3/12.

That implies, sum = 3/12+7/12.

Thus, sum = (3+7)/12 = 10/12.

On simplifying both numerator and denominator, gives,

Sum = 5/6.

Hence, the required total amount of rainfall during two months is 5/6 inch of rain.

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The correct response is A since this triangle has a dilatation of (0,0),(1,0),(1,1)) by a factor of 1/3 with respect to the origin.

A figure will dilate if its sides are scaled (multiplied) by the same amount. The scale factor of that dilatation is the name given to that figure.

It is also known as scaling a figure, but since coordinates are involved, it also requires the center of a dilation, which is similar to a pinned point and remains in the same location after dilation.

It appears as though we are adjusting the size of the figure (or leaving it the same when the scale factor is 1).

The positions (0, 0), (3, 0), (3,3)

1/3 scale factor

Now

the GPS coordinates;

(0,0),(1,0),(1,1)

Thus, required dilation is (0,0),(1,0),(1,1).

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Complete question:

A right triangle is drawn on the coordinate plane. Which is a dilation of this triangle with respect to the origin by a factor of 1/3?

Answer:

The positions (0, 0), (3, 0), (3,3)

1/3 scale factor

Now

the GPS coordinates;

(0,0),(1,0),(1,1)

Thus, required dilation is (0,0),(1,0),(1,1).

Step-by-step explanation:

option a

The point on the line y = 2x + 3 which is closest to origin is (-6/5, 3/5).

In order to find the point on line y = 2x + 3 that is closest to the origin, we  minimize the distance between the origin (0, 0) and a point (x, y) on the line.

The distance between two points (x₁, y₁) and (x₂, y₂) is given by the distance formula : d = √(x₂ - x₁)² + (y₂ - y₁)²,

In this case, one point is the origin (0, 0) and other point is (x, 2x + 3) on the line y = 2x + 3.

We can write , d = √(x - 0)² + ((2x + 3) - 0)²,

= √(x² + (2x + 3)²)

= √(x² + 4x² + 12x + 9)

= √(5x² + 12x + 9)

To minimize the distance, we minimize square of distance, which is equivalent. So, we minimize the square of distance,

d² = 5x² + 12x + 9

To find the minimum-point, we take derivative of d² with respect to x and equate to 0,

d²/dx = 10x + 12 = 0

Solving this equation,

We get,

10x + 12 = 0

10x = -12

x = -12/10

x = -6/5

Now, we substitute value of "x" in equation y = 2x + 3 to find the corresponding y-coordinate,

y = 2(-6/5) + 3

y = -12/5 + 15/5

y = 3/5.

Therefore, the closest point is (-6/5, 3/5).

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The given question is incomplete, the complete question is

Find the point on the line y = 2x + 3 that is closest to the origin.

The statement makes sense and is clearly true. When graphing linear functions, the rate of change is represented by the slope of the line.

The rate of change of a linear function is equal to its slope, which means that the steeper the slope, the greater the rate of change.

Therefore, if two linear functions are graphed and one has a greater slope than the other, it also has a greater rate of change. This can be explained by the fact that the slope represents the change in the dependent variable for every unit change in the independent variable, so a larger slope indicates a greater amount of change per unit.

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Power of 10 is that the number has to be multiplied 10 times.

You multiply 60 ten times to get the answer.

Answer: B

Step-by-step explanation:t+4+3−2.2t

Add 4 and 3 to get 7.

t+7−2.2t

Combine t and −2.2t to get −1.2t.

−1.2t+7

Question 1a

To calculate the book value at the end of the first year using straight-line depreciation, we need to determine the annual depreciation expense first. The straight-line method assumes that the asset depreciates by an equal amount each year over its useful life. Therefore, we can use the following formula to calculate the annual depreciation:

Annual Depreciation = (Cost - Salvage Value) / Useful Life

Substituting the given values, we get:

Annual Depreciation = ($200,000 - $20,000) / 10 years = $18,000 per year

This means that the tractor will depreciate by $18,000 each year for the next 10 years.

To determine the book value at the end of the first year, we need to subtract the depreciation expense for the year from the original cost of the tractor. Since one year has passed, the depreciation expense for the first year will be:

Depreciation Expense for Year 1 = $18,000

Therefore, the book value of the tractor at the end of the first year will be:

Book Value = Cost - Depreciation Expense for Year 1

= $200,000 - $18,000

= $182,000

So the book value of the tractor at the end of the first year, December 31, 2022, using straight-line depreciation is $182,000. so the answer is D

Question 1(b)

To determine the farmer's noncurrent liabilities, we need to use the information provided to calculate the total liabilities and then subtract the current liabilities from it. Here's the step-by-step solution:

Calculate the total current liabilities using the current ratio:

Current Ratio = Current Assets / Current Liabilities

2 = $80,000 / Current Liabilities

Current Liabilities = $80,000 / 2

Current Liabilities = $40,000

Calculate the total liabilities using the debt/equity ratio:

Debt/Equity Ratio = Total Liabilities / Owner Equity

1.0 = Total Liabilities / $100,000

Total Liabilities = $100,000 * 1.0

Total Liabilities = $100,000

Subtract the current liabilities from the total liabilities to get the noncurrent liabilities:

Noncurrent Liabilities = Total Liabilities - Current Liabilities

Noncurrent Liabilities = $100,000 - $40,000

Noncurrent Liabilities = $60,000

Therefore, the farmer's noncurrent liabilities are $60,000. so the answer is B.

Answer:

2 million 2 3 divided by 3= 20000

Step-by-step explanation:

add and divide

Answer: The answer is after 10 months.

Step-by-step explanation:

So you first start trying to input random numbers up until you get to 10. You multiply 22 by 10 and add an additional 80 making it 300. While when you multiply 30 by 10 you get 300 also.

Answer:

Step-by-step explanation:

this is a segment, and a triangle

you would find this by finding the hypotenuse of the triangle, or the long side of a triangle

first subtract 50 with 200

200 - 50 = 150

then you use Pythagorean theorem to find the distance with AB

200^2 + 100^2  = side C^2

40,000 + 1,000 = C ^2

41,000 = C^2

202.48 = C

Answer:

Just getting the points so I can post that image for you

Using proportions, it is found that the statement that Tiffany would expect the spinner to land on a color section beginning with the letter "B" roughly 48 times is True.

A proportion is a fraction of a total amount, and the measures are related using a rule of three.

In this problem, out of 8 sections, 4(Blue, Brown, Bronze and Black) begin with letter "B". We want to find the equivalent amount out of 98 trials. Hence, the rule of three is:

8 trials - 4 start with "B".

96 trials - n start with "B".

Applying cross multiplication:

8n = 4 x 96

n = 0.5 x 96

n = 48.

Hence, the statement is True.

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345,000 ; 350,00 ; 300,000.

Answer:

300,000

Step-by-step explanation:

the ten hundred thousands place would be

100,000

therefore the nearest ten hundred thousand would be

300,000

because the 345,047 isn't a high enough digit to be 5+ and make the nearest thousand 400,000 and not 300,000

If that doesn't help, think of it like this...

Anything before the place is what determines if the number will be higher or lower.

45 is lower than 50 and 50+ is the passing number to make the number 400,000.

Tip: when your rounding numbers the only numbers that stay the same and don't turn into 0's is like the 3 in "345,047" but the "45,047" part turns into 0's is because those aren't needed and because you rounded it, it's like it takes those numbers to make what you rounded to higher or lower.

so if you look at it like that the answer is 300,000.

<3 Enjoy,

    Dea

Yes, that is correct. The sides of an equilateral triangle inscribed in a circle are closer to the center of the circle than the sides of a square inscribed in the same circle.

This is because an equilateral triangle has all its vertices on the circumference of the circle, whereas a square has only four of its vertices on the circumference. As a result, the sides of the equilateral triangle are closer to the center of the circle than the sides of the square. This property of inscribed shapes is important in geometry and has many practical applications in fields such as architecture and engineering.

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Based on the above information, the additional number of calls was 470 calls.

To find the number of additional calls we must perform the following mathematical procedure:

We must find how much money the taxes of 10% and 13% that were collected are equivalent to:

Now we must subtract these values from the total value:

approximate would be 670 rupees

Now we must subtract the fixed value by 175 calls

So we can say that if the charge is 1 rupee for each additional call, that would be 470 calls.

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Answer:

15

Step-by-step explanation:

Have a nice Day , Hope this helped you I would appreciate it if you could mark my answer brainliest

Step-by-step explanation:

5p =, 2 p +21+ 45

3P = 66

P= 22

According to the question The probability that all 4 selected vials have hairline cracks is approximately 0.2449 or 24.49%.

To calculate the probability that all 4 selected vials have hairline cracks, we can use the concept of probability and combinations.

Let's denote the event of selecting a vial with a hairline crack as "C" and selecting a vial without a hairline crack as "NC". We know that out of the 53 vials, only 15 do not have hairline cracks, so the probability of selecting a vial with a hairline crack, \(P(C),\) is \(1 - (15/53).\)

To find the probability of all 4 selected vials having hairline cracks, we need to multiply the probabilities of selecting a vial with a hairline crack four times, since the selections are independent. Therefore, the probability can be calculated as:

\(P(4C) = P(C) * P(C) * P(C) * P(C) = (1 - (15/53))^4.\)

Now we can plug in the values and calculate the probability:

\(P(4C) = (1 - (15/53))^4 = (38/53)^4 \approx 0.2449. \]\)

Therefore, The probability that all 4 selected vials have hairline cracks is approximately 0.2449 or 24.49%.

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The properties of the functions and the graphs are listed beloe

Function 3

Here, we have

f(x) = 4/3(6)^x

See attachment for the graph, where we have the following features

Function 4

Here, we have

f(x) = -(1/3)^x

See attachment for the graph, where we have the following features

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