The graph shows the function f(x)=3^x
What is the value of x when f(x)=9?
A:3
B:1
C:0
D:2​

The expression for the number of days in y weeks - 5 days is (7*y) -5.

In x weeks and 3 days there are 7x + 3 days. Following the same pattern, as in a week there are 7 days, so on multiplying the number of weeks(y) by 7, we get the number of days in y weeks as: 7*y. On subtracting 5 from this number, as per the statement of the question, we get the number of days as: (7*y) - 5.

Therefore, the expression for the number of days in y weeks - 5 days can be written as (7*y) -5.

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Answer:

$9.6; 20%

Step-by-step explanation:

$8*(1+20%) = $8*(1.2) = $9.6

The decimal value of the 2 in the hexadecimal number F42AC16 is 131,072.

To determine the decimal value of the 2 in the hexadecimal number F42AC16, we need to understand the positional value system of hexadecimal numbers. In hexadecimal, each digit represents a power of 16. The rightmost digit has a positional value of 16^0, the next digit to the left has a positional value of 16^1, the next digit has a positional value of 16^2, and so on.

In the given hexadecimal number F42AC16, the 2 is the fifth digit from the right. Its positional value is 16^4. Calculating the decimal value: 2 * 16^4 = 2 * 65536 = 131,072. Therefore, the decimal value of the 2 in the hexadecimal number F42AC16 is 131,072.  None of the provided options (a) 409610, b) 51210, c) 25610, d) 210) matches the correct decimal value of 131,072.

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Step-by-step explanation:

(4.4)^2 = b^2 + (2)^2

(4.4)^2 - (2)^2 = b^2

root 19.36 - 4 = b

root 15.36 = b

8 root 6/5 (8 root 6 divided by 5) = b

Area of the parallelogram = b × h

= (8 root 6 divided by 5) × 4.4

= 17.24440779 cm^2

Step-by-step explanation:

no her answer is lxb this answer is right for you

Answer:

$15

Step-by-step explanation:

Can't help you with the drop down, as we need to know the info for Station A to be able to compare it with Station B, however, the cost for charging a car at Station B for 4 hours is:

use f(x) = 3x + 3  as the value of x = 4 falls in this function's interval

So f(4) = (3 x 4) + 3 = 15

So it will cost $15 for a car to charge for 4 hours at Station B.

Answer:

The command to produce the normal quantile plot of the data set x in R is d. >qqnorm(x) >qqline(x).

The normal quantile plot is a graphical method used to assess whether a set of data is approximately normally distributed. In R, the qqnorm() function is used to create the normal quantile plot of the data set, x. This function plots the quantiles of the data against the expected quantiles of a normal distribution. If the data are normally distributed, the points on the plot will fall along a straight line. The qqline() function is used to add a reference line to the plot, which makes it easier to see deviations from the straight line. Therefore, option d, >qqnorm(x) >qqline(x), is the correct command to produce the normal quantile plot of the data set x in R.

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Answer:

-4x - 20= -4x - 20

Step-by-step explanation:

Multiply -4 and x and -4 and 5. It has infinite solutions

The vertical distance between the windows is approximately 10.07 meters.

To find the vertical distance between the windows, we can use trigonometry. Let's consider the observer's line of sight as a line from the observer's position to the top window. This forms a right triangle with the vertical distance between the windows as the opposite side, the horizontal distance as the adjacent side, and the line of sight as the hypotenuse.

Using the trigonometric function tangent, we can calculate the vertical distance:

For the top window:

tan(71° 4') = vertical distance / 12 m

Solving for the vertical distance gives:

vertical distance = 12 m * tan(71° 4')

For the bottom window:

tan(61° 56') = (vertical distance + x) / 12 m

Solving for the vertical distance gives:

vertical distance + x = 12 m * tan(61° 56')

Now, subtracting the two equations, we get:

x = 12 m * (tan(61° 56') - tan(71° 4'))

Substituting the values and calculating, we find that the vertical distance between the windows is approximately 10.07 meters.

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The number of independent pieces of information used to calculate a statistic is called the degrees of freedom, which is frequently denoted by the letters v or df. I

Itbis determined by subtracting the number of restrictions from the sample size. Subtract the number of relations from the number of observations to determine degrees of freedom. You need to deduct one (1) from the total number of observations, n, in order to calculate the degrees of freedom for a sample mean or average.

The degrees of freedom for the chi-square are calculated as df = (r-1)(c-1) where

r = the number of rows

c = the number of columns.

If the observed chi-square test statistic is greater than the critical value, the null hypothesis can be rejected.

Note that an overview was given as the information you gave is incomplete.

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The number of miles that Jamel drove the car on his vacation was 97 miles.

Let the number of miles that he traveled be represented by x.

Based in the information given, the equation to solve the question will be:

50 + (0.75 × x) = 122.75

50 + 0.75x = 122.75

Collect like terms

0.75x = 122.75 - 50

0.75x = 72.75

Divide both side by 0.75

0.75x/0.75 = 72.75/0.75

x = 97

Therefore, Jamel drove the car for 97 miles.

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Answer:

$217.12

Step-by-step explanation:

A step that requires revision, and how should it be corrected include the following: A. In step 1, the compass width should be set to the length of BC.

In Euclidean geometry, a regular polygon can be defined as a form of polygon which has all of its sides and interior angles being equal.

By critically observing the polygon shown in the image attached below, we can reasonably infer and logically deduce that it represents a regular hexagon because it has a total of six (6) sides with equal angles.

Additionally, the radius of this regular polygon (hexagon) is line segment BC and as such, you should set the compass width should be set to the length of BC in order to inscribe a regular hexagon in circle C.

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Missing information:

The question is incomplete and the complete question is shown in the attached picture.

Answer:

6 or A

Step-by-step explanation:

Let's say n is equal to f(x). So "n is equal to g(x) and g(x) is equal to 3c + f(x) - 15 so when

n = 9 and c = 4 when I substitute I get 3(4) + (9) - 15 = 12 + 9 -15 = 21 - 15 = 6

Based on the analysis, discuss any differences observed between the two training methods. Discuss the analysis and findings. Reflect on the results of the analysis.

However, I can guide you on how to approach the analysis and provide you with a general outline of the steps you can follow:

Read the case problem

Review the case problem from Chapter 11 of the ebook related to the Air Force training program.

Perform the analysis

a) Run the F-test two-sample for variances:

Using Excel's Data Analysis ToolPak, follow the instructions from the provided video to perform an F-test two-sample for variances on the training data file.

b) Summarize the training time data:

Calculate appropriate descriptive statistics (e.g., mean, standard deviation) for each training method. Compare the summary statistics to identify similarities or differences between the two methods.

c) Conduct a hypothesis test on the difference between population means:

Perform a hypothesis test (e.g., independent t-test) to assess whether there is a statistically significant difference between the population means of the two training methods. Interpret and discuss the findings.

d) Calculate standard deviation and variance:

Compute the standard deviation and variance for each training method. Compare the values to gain insights into the variability within each method.

e) Conduct a hypothesis test on the equality of population variances:

Perform a hypothesis test (e.g., F-test) to determine if there is a significant difference in population variances between the two training methods. Analyze the results and discuss the findings.

f) Draw conclusions and provide recommendations:

Based on the analysis, discuss any differences observed between the two training methods. Provide a conclusion and recommendation on which training method appears to be more effective. Justify your recommendation with supporting evidence from the analysis.

Discuss the analysis and findings

Reflect on the results of the analysis. Identify any surprising or noteworthy findings. Formulate recommendations based on the findings and include specific details from the managerial report to support your recommendations.

Please note that without access to the actual data or case problem, the guidance provided is general in nature. It's important to adapt the steps to the specific case problem and data provided in the ebook.

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The length of the shadow is changing rate at 2.69 \(\frac{ft}{sec}\).

What do you mean by length?

The measurement or size of something from end to end is referred to as its length. To put it another way, it is the greater of the higher two or three dimensions of a geometric shape or object. For instance, the length and width of a rectangle define its dimensions.

According to data in the given question,

We have the given information:

The height of the person is 7 ft.

The person is walking away from the post at a rate of 5ft/sec.

The height of the lamppost is 20ft.

Let the person's distance from the bottom of the light post be x ft.

And his shadow's length is y ft.

Form the similar triangles,

\(\frac{x+y}{20}=\frac{y}{7}\\\)

7(x+y) = 20y

7x+7y = 20y

20y-7y = 7x

13y = 7x

y = \(\frac{7}{13}x\)

Now, we will differentiating wrt t,

\(\frac{dy}{dt}=\frac{7}{13}\frac{dx}{dt}................(1)\)

We know that,

\(\frac{dx}{dt}=5\frac{ft}{sec}\)

Putting the value of  \(\frac{dx}{dt}\)  in equation (1),

\(\frac{dy}{dt}=\frac{7}{13}.5=\frac{35}{13}=2.69\frac{ft}{sec}\)

Therefore, the length of the shadow is changing rate at 2.69 \(\frac{ft}{sec}\).

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Answer:

a

Step-by-step explanation:

The circumference (C) of a circle is calculated as

C = 2πr ( r is the radius ) , then

C = 2π × 20 = 40π

Answer:

False

Step-by-step explanation:

I believe it's false because both triangle have the exact same measurements, they would have to be congruent

Answer:

B. False

Step-by-step explanation:

Did the quiz.

The linear function for this problem is defined as follows:

y = x + 50.

The slope-intercept equation for a linear function is presented as follows:

y = mx + b

In which:

The graph touches the y-axis at y = 50, hence the intercept b is given as follows:

b = 50.

When x increases by 10, y also increases by 10, hence the slope m is given as follows:

m = 10/10

m = 1.

Hence the function is given as follows:

y = x + 50.

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Answer:

a

Step-by-step explanation:

We in the same boat sis

The number of units in the length of AB is  56  units by using the concept of midpoint and the whole length is twice the length of half.

Answer:

75.40 km³

Step-by-step explanation:

Volume of cone = (1/3) X vertical height X π r ²

= (1/3) X 8 x π (3)²

= (1/3) X 8 X 9π

= (8/3) X 9π

= [(8 X 9) / 3)] π

= (72/3)π

= 24π

= 75.40 km³ to nearest hundredth

Answer:

X / 4 + 22

Step-by-step explanation:

22 more means we add 22. Then, we take x as our variable, in this case, it is "a number". We divide x by 4, and then we add 22. x / 4 + 22.

Step-by-step explanation:

First of all, we'll have to eliminate 4/8 and 3/7 because they're both 1/2 or smaller and 5/9 is bigger than 1/2.

That leaves 7/13 and 6/10. 6/10=54/90    and 5/9 is 50/90.

So 6/10 is the correct answer

Answer:

Hi Friend! I think the answer is 10%, sorry if I'm incorrect!

Step-by-step explanation:

The reason why is because 4.4 is a decimal that you can multiply by 10 and get 44. This is how simple I can explain it, hope this helps!

Answer:

4.5

Step-by-step explanation:

Answer:

4.5 (Rounded to the nearest tenth)

Step-by-step explanation:

\(\sqrt{20} =4.472135955........\\\)

Rounded to the nearest tenth: 4.5 because you would round up

Answer:

The slope of the line is 4/2

Hope this helps!