X/3 = 12

I got the answer 36
But it keeps saying it’s wrong?!??!

Answer:

22 units

Step-by-step explanation:

11 - (-11) = 22

The coordinate (20, -32), the reflection of the coordinate over the x-axis is (20, 32)

If a coordinate (x, y) is reflected across the x-axis, the resulting coordinate after reflection is (x,-y)

Note that the y-ccordinate is negated after the reflection.

Given the coordinate (20, -32), the reflection of the coordinate over the x-axis is (20, 32)

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In this case, the consumer researcher has two samples of 25 items each, so the total number of observations is 50. Therefore, the degrees of freedom for this comparison would be 49 (50-1).

The formula for degrees of freedom is df = n-1,

where n represents the number of observations in a sample.

In this case, the consumer researcher has two samples of 25 items each, so the total number of observations is 50. Therefore, the degrees of freedom for this comparison would be 49 (50-1).

If a consumer researcher compares the mean price of 25 items purchased at one store to the mean price for the same 25 items purchased at a second store, the degrees of freedom are 49.

The formula for degrees of freedom is df = n-1,

where n represents the number of observations in a sample.

In this case, the consumer researcher has two samples of 25 items each, so the total number of observations is 50.

Therefore, the degrees of freedom for this comparison would be 49 (50-1).

In general, degrees of freedom are important because they help to determine the variability and precision of statistical estimates.

When the degrees of freedom are high, the estimates tend to be more precise and reliable because there is more data available to support them.

Conversely, when the degrees of freedom are low, the estimates tend to be more uncertain and prone to error because there is less data available to support them.

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Answer:

A,C,D

Step-by-step explanation:

Answer:

ITS ALL OF THEM

JUST DID IT

Answer: x-intercept is -1      y-intercept is 2

Step-by-step explanation: look for the intersection

Answer:

A) One hundred random students

Step-by-step explanation:

Answer:

This is not a right triangle because it does not fit in the Pythagorean Theorem.

Values that would work for a right triangle or in the theorem would be √3, √4, and √7.

Step-by-step explanation:

The Pythagorean Theorem is used for right triangles, and the formula is a^2 + b^2 = c^2. c should be the hypotenuse, or the longest side of the triangle. In this case, c is √7.

Remember that a root of a number times itself is the number (√4 * √4 is equal to 2 * 2, which is 4!)

√3^2 + 1^2 = √7^2

3 + 1 = 7

4 ≠ 7

Since 4 does not equal 7, we can confirm that this is not a right triangle. A value that would work is √4, which can substitute 1. Let's see it in action:

√3^2 + √4^2 = √7^2

3 + 4 = 7

7 = 7

Answer:

-4 =x

Step-by-step explanation:

ƒ(x) = 9x + 54

Let f(x) = 18

18 = 9x+54

Subtract 54 from each side

18-54 = 9x + 54-54

-36 = 9x

Divide each side by 9

-36/9 = 9x/9

-4 =x

Answer: B

Step-by-step explanation:

Well, they told you what f(x) equals. So make the function of f(x) equal to the value they gave, 18

\(18=9x+54\)

Subtract 54 from both sides to get:

\(-36=9x\)

Divide both sides by 9 to get x = -4

Instantaneous rate of change of y with respect to x at x = 8 is also given by the slope of the tangent line. In this case, the slope is 4. So, the instantaneous rate of change of y with respect to x at x = 8 is 4.

To find the average rate of change of y with respect to x over the interval [1,3], we need to calculate the difference in y-values divided by the difference in x-values. Given function y = 2x^2, evaluate at x = 1 and x = 3.

y(1) = 2(1)^2 = 2

y(3) = 2(3)^2 = 18

The average rate of change is then:

(18 - 2) / (3 - 1) = 16 / 2 = 8

So, the average rate of change of y with respect to x over the interval [1,3] is 8.

(b) To find the instantaneous rate of change of y with respect to x at the value x = 1, we need to find the derivative of the function y = 2x^2 with respect to x. Taking the derivative, we get:

y' = d/dx(2x^2) = 4x

Evaluating this derivative at x = 1:

y'(1) = 4(1) = 4

So, the instantaneous rate of change of y with respect to x at x = 1 is 4.

For the second part of the question, we are given the equation of the tangent line to the graph of y = f(x) at the point (8,30), which is y = 4x - 2.

(a) To find f'(8), we compare the given equation with the general form of a tangent line, y = mx + b. The slope of the tangent line is equal to the derivative of the function at x = 8. In this case, the slope is 4. So, f'(8) = 4.(b) The instantaneous rate of change of y with respect to x at x = 8 is also given by the slope of the tangent line. In this case, the slope is 4. So, the instantaneous rate of change of y with respect to x at x = 8 is 4.

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Answer:

Step-by-step explanation:

It looks much harder than it really is

Let the first number = 25

Let the second number = x

25 * x = 133600            divide both sides by 25

25*x/25 = 133600/25

x = 5344

Make sure the answer really is 133600 because the comma (one) should go before the 6.

Answer:

Slope is undefined

Step-by-step explanation:

slope = \(\frac{\Delta y}{\Delta x}\)

\(\frac{5-8}{-7-(-7)}=\frac{-3}{0}\)

Anything divided by zero is undefined

This should make sense visually as the points describe a vertical line at \(x=-7\)

Answer:

No, it is a binomial.

Step-by-step explanation:

The diver's velocity during the first 2 sec of fall using the modified Euler method with Ar= 0.2 is 62.732 mph.

Given data: Initial velocity, u = 0 ft/sec

Acceleration, a = g = 32.2 ft/sec²

The maximum rate of fall, vmax = 80 mph

Time, t = 2 seconds

Air resistance constant, Ar = 0.2

We are supposed to determine the sky diver's velocity during the first 2 seconds of fall using the modified Euler method.

The governing equation for the velocity of the skydiver is given by the following:

ma = -m * g + k * v²

where, m = mass of the skydive

r, g = acceleration due to gravity, k = air resistance constant, and v = velocity of the skydiver.

The equation can be written as,

v' = -g + (k / m) * v²

Here, v' = dv/dt = acceleration

Hence, the modified Euler's formula for the velocity can be written as

v1 = v0 + h * v'0.5 * (v'0 + v'1)

where, v0 = 0 ft/sec, h = 2 sec, and v'0 = -g + (k / m) * v0² = -g = -32.2 ft/sec²

As the initial velocity of the skydiver is zero, we can write

v1 = 0 + 2 * (-32.2 + (0.2 / 68.956) * 0²)0.5 * (-32.2 + (-32.2 + (0.2 / 68.956) * 0.5² * (-32.2 + (-32.2 + (0.2 / 68.956) * 0²)))

v1 = 62.732 mph

Therefore, the skydiver's velocity during the first 2 seconds of fall using the modified Euler method with Ar= 0.2 is 62.732 mph.

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Answer:

A. \( \frac{7x^2}{6x - 10} \)

Step-by-step Explanation:

To get the quotient, which is the result of

What we get by dividing the above, we would turn the divisor upside down, while the division sign would change to multiplication. This rule applied is known as "multiplying by the reciprocal".

\( \frac{7x^2}{2x + 6} \) ÷ \( \frac{3x - 5}{x + 3} \)

\( \frac{7x^2}{2x + 6} * \frac{x + 3}{3x - 5} \) => multiplying by the reciprocal.

\( \frac{7x^2}{2(x + 3)} * \frac{x + 3}{3x - 5} \)

\( \frac{7x^2}{2} * \frac{1}{3x - 5} \) => (x + 3) cancels (x + 3)

\( \frac{7x^2(1)}{2(3x - 5)} \)

\( \frac{7x^2}{6x - 10} \)

Quotient = \( \frac{7x^2}{6x - 10} \)

Answer: A

Step-by-step explanation:

The result of adding 0.6+0.6j and 0.6-0.6j in MATLAB is 1.2.

To add complex numbers in MATLAB, you can use the "+" operator. The given expression is "0.6 + 0.6j + 0.6 - 0.6j". Let's simplify it step by step:

First, let's simplify the real parts: 0.6 + 0.6 = 1.2.

Next, let's simplify the imaginary parts: 0.6j - 0.6j = 0.

Finally, combine the real and imaginary parts to form the complex number: 1.2 + 0j.

Therefore, the result of adding 0.6+0.6j and 0.6-0.6j in MATLAB is 1.2.

In MATLAB, complex numbers are represented as a combination of a real part and an imaginary part. The real part represents the magnitude of the number on the real number line, while the imaginary part represents the magnitude on the imaginary number line.

By using the addition operator "+", MATLAB automatically handles the addition of the real and imaginary parts separately. When adding two complex numbers, MATLAB adds their real parts together and their imaginary parts together. In this case, the real parts (0.6 and 0.6) add up to 1.2, and the imaginary parts (0.6j and -0.6j) cancel each other out resulting in 0. Thus, the sum of the complex numbers is 1.2.

MATLAB provides a powerful set of built-in functions for working with complex numbers. You can perform various operations such as multiplication, division, and exponentiation using these functions.

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The ppm equivalent to 1250 mg/L is 1,250,000 ppm. This means that for every million parts of the solution, there are 1,250,000 parts of the substance being measured.

PPM stands for parts per million, a unit of measurement used to express the concentration of a substance in a solution. To calculate the ppm equivalent of a given concentration, such as 1250 mg/L, you need to divide the mass of the substance (in milligrams) by the volume of the solution (in liters) and then multiply by one million. In this case, dividing 1250 mg by 1 L gives you a concentration of 1250 mg/L. Multiplying this by one million gives you 1,250,000 ppm. Therefore, a concentration of 1250 mg/L is equivalent to 1,250,000 ppm.

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$16,200

1) Coletando los datos

Valor presente: 5,000

rate: 9%

Tiempo: 36 meses

2) Escribindo la formula y despues aplicando los datos, tienemos:

Mira que subtraemos de lo Valor Futuro, el Principal. A -P = i

3) Entonces el interés simple és $16,200

The least accurate measurement among the options provided is 18050 m.Therefore, among the given options, 18050 m is the least accurate measurement due to its higher number of significant figures.

To determine the least accurate measurement, we need to consider the number of significant figures in each measurement. The measurement with the fewest significant figures indicates lower accuracy.

Among the options given:

a. 208 m has three significant figures.

b. 18050 m has five significant figures.

c. 0.08 m has two significant figures.

d. 0.750 m has three significant figures.

e. 12.0 m has three significant figures.

The measurement with the least accurate value is 18050 m because it has the highest number of significant figures among the options. A higher number of significant figures suggests a greater level of precision and accuracy in the measurement.

Significant figures represent the digits in a number that contribute to its precision. They include all the non-zero digits and any zeros that appear between non-zero digits or after a decimal point. In this case, the measurement 18050 m has five significant figures, indicating a high level of precision and accuracy.

On the other hand, measurements with fewer significant figures imply less precision and accuracy. For example, the measurement 0.08 m has only two significant figures, suggesting less certainty in the measurement compared to 18050 m.

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Answer:

FGH ~ KLJ

Step-by-step explanation:

You have to write the similarities in order. Meaning, each letter of the triangle must correspond with each letter of the other triangle, in order. So if ABC is similar to LMN, then A must be similar to L, B must be similar to M, and C must be similar to N.

So,F = 91 and K = 91. They are the first part of the similarity. Then, G and L both equal 65, so they are the second part. Finally, H and J both equal 24, so they must be the third part.

Therefore,  FGH ~ KLJ.

(If you are wondering about the second part: " ≅ " means congruent to and " ~ " means similarity so the ~ symbol is the right one.)

I hope this helps! Good Luck!

The relationship between two triangles is ΔFGH ~ ΔJKL.

The correct option is C.

Those triangles look the same but are different in size.

And in similar triangles,

the corresponding sides are in proportion to each other and the corresponding angles are equal to each other.

Given:

Two triangles ΔFGH and ΔJKL.

And the triangles are similar.

That means, the corresponding angles are congruent.

From the diagram:

ΔFGH ~ ΔJKL.

Therefore, ΔFGH ~ ΔJKL.

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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.

hello

from the question, everything is true

if the meteorologist said there's 40% probability of rain, the chance that rain would not occur would be

Answer:

huh?

Step-by-step explanation:

whats the question

The domain of g(x) is all real numbers except x = 0, the domain of h(x) is all real numbers, g(h(x)) = 1 / (x + 4)^2, and the domain of g(h(x)) is all real numbers except x = -4.

a) The domain of g(x) is all real numbers except x = 0, because the function is undefined when x equals zero due to division by zero (1/0^2).

b) The domain of h(x) is all real numbers because there are no restrictions or limitations on the variable x in the function h(x) = x + 4.

c) To find g(h(x)), we substitute h(x) into the function g(x):

g(h(x)) = g(x + 4) = 1 / (x + 4)^2

d) The domain of g(h(x)) is all real numbers except x = -4, because the expression (x + 4)^2 is undefined when x equals -4 due to division by zero (1/(-4 + 4)^2).

In summary, the domain of g(x) is all real numbers except x = 0, the domain of h(x) is all real numbers, g(h(x)) = 1 / (x + 4)^2, and the domain of g(h(x)) is all real numbers except x = -4.

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To evaluate the limit of the function f(x, y) = e^(xy - 1) / x as (x, y) approaches (0, 0), we need to determine if the limit exists or not.

To evaluate the limit, we will consider approaching the point (0, 0) along different paths and see if the limit value remains the same regardless of the path taken. If the limit value is consistent for all paths, the limit exists; otherwise, the limit does not exist.

Let's consider approaching (0, 0) along the x-axis by setting y = 0. In this case, the function becomes f(x, 0) = e^(0 - 1) / x = e^(-1) / x. As x approaches 0, the function tends to infinity (∞) since e^(-1) is a constant.

Now, let's consider approaching (0, 0) along the y-axis by setting x = 0. In this case, the function becomes f(0, y) = e^(0 - 1) / 0, which is undefined since division by zero is not defined.

Since approaching along different paths yields different results, the limit does not exist. The function f(x, y) = e^(xy - 1) / x does not have a well-defined limit as (x, y) approaches (0, 0).

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A confidence interval is made up of the mean of your estimate plus and minus the estimate's range. This is the range of values you expect your estimate to fall within if you repeat the test, within a given level of confidence.

A 95% confidence interval gives you a 5% chance of being wrong. A 90% confidence interval gives you a 10% chance of being wrong. In comparison to a 99% confidence interval, a 95% confidence interval is smaller (for example, plus or minus 4.5 percent instead of 3.5 percent).

When constructing a confidence interval for a propotion, if the condition of proportion requires 10 individuals in each category is not met, then confidence interval should be adjusted.

The number of individuals in each category is increased by 2 and sample size increases by 4.

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The coefficient of determination is 0.49. This means that approximately 49% of the variation in the dependent variable can be explained by the variation in the independent variable.

What is coefficient of determination?

The coefficient of determination, also known as R-squared (R²), quantifies the extent to which the variation in the dependent variable can be accounted for or attributed to the independent variable(s) in a regression model.

On the other hand, the coefficient of correlation, represented as r, measures the strength and direction of the linear relationship between two variables. It ranges from -1 to 1, where a value of 1 indicates a perfect positive linear relationship, -1 indicates a perfect negative linear relationship, and 0 suggests no linear relationship.

In order to assess the percentage of variability in the dependent variable (y) that can be explained by the independent variable (x), we calculate the coefficient of determination (r²). This value indicates the proportion of the variance in the dependent variable that can be understood based on the variation in the independent variable.

To calculate \(r^2\), we square the coefficient of correlation (r):

\(r^2 = (0.7)^2 = 0.49\)

So, the coefficient of determination is 0.49. This means that approximately 49% of the variation in the dependent variable can be explained by the variation in the independent variable.

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