For the following discrete probability distribution, xi: 3,5,6,7,10 p1: 0,1 0,3 0,3 0,2 0,1What is the mean? What is the standard deviation (to 3 significant digits)?

Answer: a)0

Step-by-step explanation:

side "a" need to be longer than the height so that the tringle can exist and the height is longer than the side so the tringle cannot exist

height:

[tex]sin42=\frac{x}{8}[/tex]

[tex]x=8sin(42)\\x=5.3[/tex]

for the tringle to exist

height< side "a"

5.3> 3

so,

there is no tringle that exist

The construction process for drawing a tangent to a circle of radius 4 cm from a point on the concentric circle of radius 6 cm and measuring its length.

To construct a tangent to a circle of radius 4 cm from a point on the concentric circle of radius 6 cm, follow the steps below:

Draw the two concentric circles with radii of 6 cm and 4 cm, respectively.

Mark a point on the outer circle, which will serve as the point of tangency.

Draw a line from the center of the circle to the point of tangency.

Draw a perpendicular line to the first line, passing through the point of tangency. This line will be the tangent line to the circle.

Measure the length of the tangent line using a ruler.

To verify the measurement of the tangent line, we can use the following formula:

Length of tangent line = sqrt(r^2 - d^2)

where r is the radius of the circle and d is the distance between the center of the circle and the point of tangency.

In this case, r = 4 cm and d = 6 cm - 4 cm = 2 cm.

Therefore, the length of the tangent line is:

sqrt(4^2 - 2^2) = sqrt(12) = 2sqrt(3) cm

Comparing this result with the measured length of the tangent line from the construction, we can see that they match, verifying the measurement.

Complete question:

Construct a tangent to a circle of radius 4 cm from a point on the concentric circle of radius 6 cm and measure its length. Also, verify the measurement by actual calculation.

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When the triangle ABC is similar to triangle DEF see in above figure. The measure of side length DE, is equals to the 53.1 .

Similar triangles are the triangles that looks similar to each other but their sizes may or may not be exactly the same. Two triangles will be similar if the angles are equal (corresponding angles) and sides are in the same ratio (corresponding sides). We have, triangle ABC and triangle DEF. From the above figure, in ∆ABC,

length of side BC = 8

length of side AB = 13.7

In ∆DEF, length of side, EF = 31

We have to measure the length of side DE. Now, it is specific that triangle ABC is similar to triangle DEF. Using the definition of similar triangles, ratio of corresponding sides of ∆ABC and ∆DEF are in the same ratio. That is, BC/EF = AB/DE

=> 8/31 = 13.7/DE

Cross multiplication

=> DE × 8 = 31× 13.7

=> DE = 31×13.7/8

=> DE = 53.0875

Hence, required rounded side length,DE is 53.1..

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Complete question:

Triangle ABC is similar to Triangle DEF ( see the above figure). Find the measure of side DE. Round Your answer to the nearest tenth if necessary.

In this scenario, the two variables being considered are time and parking fee. Time represents the amount of time Alayna parks her car, while the parking fee represents the cost incurred for parking her car for that duration.

The independent variable in this case is time, as it is the variable being manipulated or changed by Alayna, and the dependent variable is the parking fee, as it is dependent on the amount of time Alayna parks her car.

To create a graph for this data, the time should be plotted on the x-axis (horizontal axis) and the parking fee should be plotted on the y-axis (vertical axis). This is because time is the input variable, and parking fee is the output variable, meaning that it is determined by the time value.

In conclusion, time is the independent variable and should be placed on the x-axis, while parking fee is the dependent variable and should be placed on the y-axis to create a graph that illustrates the relationship between these two variables.

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There are 20 boys in the park.

Let's use b to denote the number of boys and g to denote the number of girls at the park prior to the arrival of 20 girls.

We can infer from the statistics provided that there are 3:1 more boys than girls when the first 20 girls arrive. This implies:

b/g = 3/1

By multiplying both sides of this ratio by g, we may make it simpler:

b = 3g

Then it is revealed that 20 more girls arrive, changing the ratio to 1:2. As a result, there are now 40 more persons (boys and girls) in the park overall.

Let's use B to stand for the number of boys in the park following the arrival of 20 girls, and G to stand for the number of girls in the park following the arrival of 20 girls.

After the 20 girls arrive, there are 1:2 more guys than girls, thus we know that:

B/G = 1/2

We also know that (b+20) + (g+20) = (B+G) is the total number of persons in the park once the 20 girls arrive.

To replace b in terms of g, we can utilise the first equation we arrived at as a replacement:

b = 3g

Hence, b+g = 3g+g+g = 4g individuals are present in the park overall prior to the arrival of the 20 girls.

After the 20 girls come, we may solve for the total number of individuals by substituting this expression for b+g into the equation:

(3g + 20) + (g + 20) = B + G

If we simplify, we get:

4g + 40 = B + G

So, in order to delete G from this equation, we can replace it with the second equation we derived:

4g + 40 = B + 2B

More simplification results in:

4g + 40 = 3B

When we multiply both sides by 3, we get:

g + 10 = B

Now, we may solve our first problem by substituting the following expression for B:

b/g = 3/1

3g/g = 3/1

3 = 3

We can see that the validity of the equations we derived is unaffected by the amount of g, thus we are free to use any value of g in our calculations. Let's select g=10 (since it makes the math easy).

The equation we previously derived can then be used to determine B:

g + 10 = B

10 + 10 = B

B = 20

20 boys are so present in the park.

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Answer:

(-7.5, -2.5)

Step-by-step explanation:

We take

- 12 - 3 / 2 = -15/2 = -7.5

-1 - 4 / 2 = -5/2 = -2.5

So, the midpoint is (-7.5, -2.5)

Answer:

it's D some other type of polyomial

Step-by-step explanation:

because it has more three it's a polynomials= that is many.

Answer:

To solve the problem using unit rates, we can first find Lila's rate of phone calls per minute, which is given by:

rate = number of phone calls / time spent on the phone

Using the values given in the problem, we get:

rate = 24 phone calls / 72 minutes

rate = 1/3 phone calls per minute

This means that Lila routes 1/3 phone call per minute.

To find how many phone calls Lila needs to route to spend a total of 90 minutes on the phone, we can use the same rate and the formula:

number of phone calls = rate x time

Substituting the values, we get:

number of phone calls = (1/3 phone calls per minute) x (90 minutes)

number of phone calls = 30 phone calls

Therefore, Lila needs to route a total of 30 phone calls to spend a total of 90 minutes on the phone.

a)1.09

b) 0.165

c) 0.43

Given that log_a(5)≈0.76 and log_a(2)≈0.33, we need to evaluate the following: log_a(10), log_a(√2), and log_a(2.5).Hint: use the properties of logarithms to rewrite the given logarithm in terms of the logarithms of 5 and 2.a) To evaluate log_a(10), we can use the identity log_a(mn) = log_a(m) + log_a(n). So, we can rewrite log_a(10) as log_a(5 x 2) = log_a(5) + log_a(2). Now, substitute the values for log_a(5) and log_a(2):log_a(10) = 0.76 + 0.33 = 1.09b) To evaluate log_a(√2), we can use the identity log_a(m^n) = n log_a(m). So, we can rewrite log_a(√2) as log_a(2^(1/2)) = (1/2) log_a(2). Now, substitute the value for log_a(2):log_a(√2) = (1/2) x 0.33 = 0.165c) To evaluate log_a(2.5), we can use the identity log_a(m/n) = log_a(m) - log_a(n). So, we can rewrite log_a(2.5) as log_a(5/2) = log_a(5) - log_a(2). Now, substitute the values for log_a(5) and log_a(2):log_a(2.5) = 0.76 - 0.33 = 0.43Therefore, the values for the logarithms are: log_a(10)≈1.09, log_a(√2)≈0.165, and log_a(2.5)≈0.43.

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The next four terms of the given recursive sequence using the formula are 3, 9, 21, 45

To find the first four terms of the sequence, we can use the recursive formula given:

First term a1 = 3

For the second, third and fourth term, we will substitute the preceding value to have:

a2 = 2a1 + 3 = 2(3) + 3 = 9

a3 = 2a2 + 3 = 2(9) + 3 = 21

a4 = 2a3 + 3 = 2(21) + 3 = 45

Therefore, the first four terms of the sequence are: 3, 9, 21, 45.

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The amount saved in one month, we need to divide this amount by 12 as he saves on a monthly basis. This gives us a total of R14 160 saved each month. Dumisani saves (42 480 x 5) / 12 = R14 160

Dumisani earns R42 480 per month. He decides to split his earnings in the ratio 7:5. This means that 7 parts of his income will be allocated to his expenses and 5 parts will be allocated to his savings. To calculate the amount saved, we need to first multiply 42 480 by 5 to find out the total amount allocated to savings. This is equal to 212 400. To find the amount saved in one month, we need to divide this amount by 12 as he saves on a monthly basis. This gives us a total of R14 160 saved each month.

Total allocated to savings = 42 480 x 5 = 212 400

Amount saved per month = 212 400 / 12 = R14 160

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The algebraic expression that represents the amount of money in Erin's savings account after nine weeks is therefore; A(9) = 182.73 + 12.50 × 9

An algebraic expression consists of variables, constants and terms, and algebraic operators.

The balance in Erin's savings account = $182.73

The amount Erin deposits in her account each week = $12.50

Let A represent the amount of money Erin has in her savings account after n weeks, we get;

After one week, the amount Erin will have in her account can be found using the following equation;

A = 182.73 + 12.50 × 1

The amount she will have after two weeks is therefore;

A = 182.73 + 12.50 × 2

The general equation for the amount Erin will have in her savings account after n weeks is therefore;

A = 182.73 + 12.50 × n = 182.73 + 12.50·n

The algebraic expression that represents the amount of money in Erin's savings account after nine weeks can be found as follows;

The amount of money Erin will have in her savings account after 9 weeks can be obtained by plugging in n = 9, therefore;

A(9) = 182.73 + 12.50 × 9

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Answer:

The answer is A) All four sides are equal. The simplest radical form for each side is √40.

Step-by-step explanation:

If X is plotted on 6 on the y-axis, then X is located at the point (2, 6), since W is plotted on 2 on the x-axis, W is located at the point (2, 2).

Since we know that XW is one side of the square, we can find the other three vertices of the square using the fact that all sides of a square are equal in length and perpendicular to each other.

To find the third vertex, we can use the fact that Z is plotted at (4, -2) and is perpendicular to XW. Since XW has a length of 4 (the difference in y-coordinates between X and W), we know that the length of ZY must also be 4. To find the coordinates of Y, we can move 4 units up from the y-coordinate of Z (which is -2), giving us a y-coordinate of 2. Since ZY is perpendicular to XW, we know that the x-coordinate of Y must be the same as the x-coordinate of Z (which is 4). Therefore, the coordinates of Y are (4, 2).

To find the fourth vertex, we can use the fact that all sides of the square are equal in length. Since XW has a length of 4, we know that ZY must also have a length of 4. Therefore, the fourth vertex must be located 4 units to the right of Y and 4 units up from X. This gives us a fourth vertex with coordinates of (6, 6).

Therefore, the vertices of the square are W(2, 2), X(2, 6), Y(4, 2), and Z(4, -2).

To check that the sides of the square are perpendicular to each other, we can calculate the slopes of the sides.

The slope of XW is:

m_XW = (6 - 2) / (2 - 2) = undefined

The slope of ZY is:

m_ZY = (2 - (-2)) / (4 - 4) = undefined

Since both slopes are undefined (the lines are vertical), the sides are perpendicular to each other.

To check that the sides of the square are equal in length, we can use the distance formula:

XW = sqrt((6 - 2)^2 + (2 - 2)^2) = sqrt(16) = 4

ZY = sqrt((2 - (-2))^2 + (4 - 4)^2) = sqrt(16) = 4

Since both sides have the same length of 4, all sides of the square are equal in length.

Therefore, the answer is option A) All four sides are equal. The simplest radical form for each side is √40.

Hope this helped, if it's wrong I'm sorry! If you need more help, ask me! :]

Answer: Sorry, I cannot provide visual aids or diagrams. However, I can help with the mathematical calculations and solutions to the given problems.

(a) To construct a trapezium WXYZ, follow the steps below:

Draw a straight line segment WX of length 10.2 cm and draw a line segment YZ of length 5.8 cm parallel to WX, such that the distance between them is 8.3 cm.

Draw a line segment XY of length 5.6 cm perpendicular to both WX and YZ, joining their endpoints.

From the endpoint Z, draw a perpendicular line segment ZN to WX.

Angle LWXY is given as 60°, so mark a point L on WX, such that angle WLY is 60°.

Therefore, the trapezium WXYZ is constructed.

(b) From the diagram, we can see that ZN is perpendicular to WX, so triangles ZWX and ZYN are similar.

Using the similar triangles ZWX and ZYN, we can write:

WX/WY = ZN/XY

10.2/5.6 = ZN/5.8

ZN = (10.2/5.6) * 5.8

ZN ≈ 10.57 cm

(c) Using Pythagoras' theorem, we can find the length of WZ:

WZ² = WX² - XZ²

WZ² = 10.2² - 8.3²

WZ ≈ 4.3 cm

Therefore, |WZ| ≈ 4.3 cm and |ZN| ≈ 10.57 cm.

(a) Let the width of the frame be w and the length be l. Then, according to the problem,

cost ∝ w * √l

cost = k * w * √l, where k is the constant of proportionality.

Using the given information, we can find the value of k as follows:

N115 = k * 10 * √25

k = N115 / 50

k = N2.3

Therefore, the law of variation is cost = N2.3 * w * √l.

(b) For a frame of width 12 cm and length 49 cm,

cost = N2.3 * 12 * √49

cost = N2.3 * 12 * 7

cost = N193.2

(a) Since the range R = {2, 5, 10}, we know that f(x) can take only these three values. Therefore,

x² + 1 = 2 or x² + 1 = 5 or x² + 1 = 10

Solving each of these equations for x, we get:

x = ±√1 or x = ±√4 or x = ±√9

x = ±1 or x = ±2 or x = ±3

Therefore, the domain D = {-3, -2, -1, 1, 2, 3}.

To find f-¹(5), we need to find the values of x for which f(x) = 5. From the equation x² + 1 = 5, we get:

x² = 4

x = ±2

Therefore, f-¹(5) = {-2, 2}.

Step-by-step explanation:

Step-by-step explanation:

2x-6: 6x-4

Use any value to represent x

Let's use 1

2(1)-6: 6(1)-4

2-6 : 6-4

-4 : 2

Write in simplest form by dividing by 2

-2:1

Now do the same in all the answers above, use 1 for the value of x

1. - 2:1 is equivalent

2. 1-3 : 3(1)-2 = - 2:1 Equivalent

3. 3(1) : 1 = 3 :1 not equivalent

4. 4(1) - 12 : 12(1) - 8 = - 8 : 4 (

Simplify by dividing by 4, you get - 2 :1 equivalent

5. 1-1 : 1 - 2 = 0 : - 1 not equivalent

a.) Jill has 6 pence less than jack, therefore Jill has x-6 pences.

b.) If one box weighs 60grams, b number of boxes will weigh 60*b grams.

A linear equation is an algebraic equation of the form y=mx+b, where m is the slope and b is the y-intercept, and only a constant and a first-order (linear) term are included. The variables in the preceding equation are y and x, and it is occasionally referred to as a "linear equation of two variables."

The fact that the set of solutions to such an equation forms a straight line in the plane is where the word "linear" originates.

The three forms of linear equations are

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If Jack has x pence, then Jill has 6 pence less than Jack, which means Jill has (x - 6) pence.

Therefore, in terms of x, the number of pence that Jill has is (x - 6).

If one box weighs 60 stams, then the weight of b boxes can be expressed as:

Weight of b boxes =[tex] 60 × b[/tex]

Therefore, in terms of b, the weight of b boxes is 60b stams.

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Answer: To write an equivalent logarithmic equation to e^8.2 = 10x, we use the fact that log base 10 is the inverse of exponential base 10. Therefore, we have:

log(10)(e^8.2) = log(10)(10x)

Using the property of logarithms that says log base a of a^b is equal to b, we get:

8.2 = log(10)(10x)

Using the fact that log base 10 is commonly written as just "log," we can simplify this to:

8.2 = log(10x)

This is the equivalent logarithmic equation.

To write an equivalent exponential equation to In0.0002 = x, we use the fact that In is the inverse of e^x. Therefore, we have:

e^(In0.0002) = e^x

Using the property of logarithms that says e^ln(a) = a, we get:

0.0002 = e^x

This is the equivalent exponential equation.

To write an equivalent exponential equation to In(4x) = 9.6, we use the fact that In is the inverse of e^x. Therefore, we have:

e^(In(4x)) = e^9.6

Using the property of logarithms that says e^ln(a) = a, we get:

4x = e^9.6

Dividing both sides by 4, we get:

x = (1/4)e^9.6

This is the equivalent exponential equation.

Step-by-step explanation:

The given system of equations, line 1: y=x+3 and line 2: y-2x-2, is an inconsistent system of linear equations.

A system of linear equations is said to be inconsistent if there is no solution. It means that the two lines do not intersect and are parallel to each other.

In the given system of equations, line 1: y=x+3 is in the slope-intercept form y=mx+b where the slope, m=1 and the y-intercept, b=3. The first line, y=x+3 has a slope of 1 and a y-intercept of 3, which means the line passes through (0, 3).

To find a second point, use the slope. Since the slope is 1, go up one and over one. This means the line passes through (1, 4).

Next, line 2: y-2x-2. To do so, we need to rewrite it in slope-intercept form.

y-2x-2 = 0

y=2x+2

The second line has a slope of 2 and a y-intercept of 2, which means the line passes through (0, 2).To find a second point, use the slope. Since the slope is 2, go up two and over one. This means the line passes through (1, 4).

The two lines are parallel to each other and do not intersect. Therefore, there is no solution. The system of equations, line 1: y=x+3 and line 2: y-2x-2, is inconsistent.

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If the front wheels have made 10 more revolutions than the back wheels, the truck travels 360 cm.

Given that The front and back wheels of a toy truck are 9 cm and 12 cm in circumference respectively.

Let the one revolution of wheel be "R"

So, the Rear wheels revolution = 12R

and the Front = 9(R+10)

Thus, revolution of both wheels should be comparatively equal :-

So, 12R = 9(R+10)

12R = 9R + 90

3R = 90

R= 90/3

R = 30 cm

The value of one revolution would be 30cm.

Distance travelled by truck would be distance travelled by wheels = 12 × 30 = 360 cm

So, the distance travelled by truck would be 360cm.

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By answering the presented question, we may conclude that As a result, equation a milkshake costs $3.50.

A math equation is a technique that links two assertions and denotes equivalence using the equals sign (=). In algebra, an equation is a mathematical statement that proves the equality of two mathematical expressions. For example, in the equation 3x + 5 = 14, the equal sign separates the numbers 3x + 5 and 14. A mathematical formula may be used to understand the link between the two phrases written on either side of a letter. The logo and the programmed are usually interchangeable. As an example, 2x - 4 equals 2.

4x + 2y = 23.50 (equation 1) (equation 1)

8x + 6y = 56.50 (equation 2) (equation 2)

By dividing both sides by 2, we can simplify equation 2:

4x + 3y = 28.25 (equation 3) (equation 3)

We now have two equations and two unknowns. We can find x by deleting y:

4x + 2y = 23.50

4x + 3y = 28.25

We obtain the following when we subtract the first equation from the second:

y = 4.75

To solve for x, we may now plug y = 4.75 into equation 1 or equation 3. Let's look at equation 1:

4x + 2y = 23.50

When we substitute y = 4.75, we get:

4x + 2(4.75) = 23.50

Simplifying:

4x + 9.50 = 23.50

Taking 9.50 off both sides:

4x = 14

Divide all sides by four:

x = 3.50

As a result, a milkshake costs $3.50.

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According to the question the Kate had [tex]$\frac{4}{7}$[/tex] coconuts at her stall.

Coconut is a tropical fruit that grows on palm trees. It is a large, egg-shaped drupe with a hard outer shell and a white fleshy inner layer. The flesh of the coconut is rich in vitamins, minerals, and fiber, and it is also a source of healthy fats. Coconut can be eaten fresh, dried, or even in the form of coconut milk or oil.

First, we will calculate the total number of fruits Kate had at her stall. To do this, we need to solve for x in the equation [tex]$\frac{3}{4}x + \frac{1}{3}(\frac{3}{4}x - x) + (\frac{3}{4}x - \frac{1}{3}(\frac{3}{4}x - x)) = x$.[/tex]
Solving for x, we get [tex]$x = \frac{8}{7}$.[/tex]
Therefore, Kate had [tex]$\frac{8}{7}$[/tex]fruits at her stall.
Next, we need to calculate the number of coconuts she had at first. We know that she sold 1/4 of the fruits, or [tex]$\frac{2}{7}$[/tex] of the fruits. We also know that the ratio of mangosteens sold to apples sold to coconuts sold was 3:5:3.
Therefore, the number of coconuts sold was [tex]$\frac{2}{7} \times \frac{3}{13} = \frac{6}{91}$[/tex].
The total amount earned from the coconuts sold was [tex]$\frac{6}{91} \times 4.50 = \frac{27}{91}$[/tex].
Subtracting this from the total amount earned, 198, we get [tex]$198 - \frac{27}{91} = \frac{171}{91}$[/tex].
This is the amount earned from the mangosteens and apples sold. The amount earned from each mangosteen sold was 1.50, and the amount earned from each Fuji apple sold was 3.00.
Therefore, to get the total amount earned from mangosteens and apples, we need to solve for x in the equation [tex]$\frac{2}{7} \times x + \frac{2}{7} \times 3x = \frac{171}{91}$[/tex].
Solving for x, we get [tex]$x = \frac{171}{171}$[/tex].
This means that the total number of mangosteens and apples sold was $\frac{171}{171}$. Since the ratio of mangosteens sold to apples sold was 3:5, the number of mangosteens sold was [tex]$\frac{3}{8}$[/tex] and the number of apples sold was $\frac{5}{8}$.
Therefore, the number of coconuts at first was [tex]$\frac{8}{7} - \frac{3}{8} - \frac{5}{8} = \frac{4}{7}$[/tex].
Therefore, Kate had [tex]$\frac{4}{7}$[/tex] coconuts at her stall.

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After considering the equation, inverse of y = [tex]9x^ {2}[/tex] - 4 is found as  [tex]f^{-1x}[/tex]= ±√[(x + 4)/9].

To find the inverse of the function y = [tex]9x^{2}[/tex] - 4, we can follow these steps:

x = [tex]9y^{2}[/tex] - 4

x + 4 = [tex]9y^{2}[/tex]

[tex]y^{2}[/tex] = (x + 4)/9

y = ±√[(x + 4)/9]

Note that since we are finding the inverse of a function, we need to include both the positive and negative square roots to ensure that the inverse is a function.

3. Switch the roles of x and y by replacing y with [tex]f^{-1x}[/tex] and x with f(y):

[tex]f^{-1x}[/tex] = ±√[(x + 4)/9]

Therefore, the inverse of y = 9x² - 4 is [tex]f^{-1x}[/tex] = ±√[(x + 4)/9].

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On solving the question we have that Therefore, the correct answer is: function  As x → −∞, f(x) → −∞ and as x → ∞, f(x) → −∞.

Mathematicians investigate numbers and their variants, equations and related structures, shapes and their locations, and prospective locations for these things. The term "function" refers to the relationship between a group of inputs, each with its own output. A function is a relationship of inputs and outputs in which each input results in a single, distinct output. Each function has its own domain, codomain, or scope. The letter f is commonly used to denote functions (x). An x represents entry. On functions, one-to-one capabilities, so multiple capabilities, in capabilities, and on functions are the four basic types of accessible functions.

Based on the graph, the function approaches a horizontal line at y = -3 as x approaches negative infinity, and also approaches the same horizontal line at y = -3 as x approaches positive infinity. Therefore, we can say that:

As x → −∞, f(x) → −∞ and as x → ∞, f(x) → −∞.

Therefore, the correct answer is:

As x → −∞, f(x) → −∞ and as x → ∞, f(x) → −∞.

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Given, 6i is a zero of f(x) = x³ - 2x² + 36x - 72To find the remaining zeros of f(x) we can use the division method as follows:

Step-by-step explanation: Since 6i is a zero of the polynomial, we know that its conjugate -6i is also a zero. Hence (x-6i) and (x+6i) are factors of the polynomial f(x).

So we can write f(x) as f(x) = (x-6i)(x+6i)(ax + b)where ax + b is the third factor. Let's divide x³ - 2x² + 36x - 72 by (x-6i)(x+6i) using long division:x³ - 2x² + 36x - 72  |  (x-6i)(x+6i)  ____________  x² + 6xi + 6xi + 36   |   x³ - 6xi² - 2x² + 12x² + 36x - 216   ____________   x³ - 2x² + 48x - 216We can write f(x) as f(x) = (x-6i)(x+6i)(x² + 6x - 12)

The remaining zeros of f(x) are the zeros of the quadratic factor (x² + 6x - 12). Using the quadratic formula, we can solve for the zeros: x = [-b ± sqrt(b² - 4ac)]/2a

For the quadratic equation, a = 1, b = 6 and c = -12. Substituting these values in the quadratic formula: x = [-6 ± sqrt(6² - 4(1)(-12))]/2(1)x = [-6 ± sqrt(60)]/2x = -3 ± sqrt(15). Therefore, the zeros of f(x) are 6i, -6i, -3 + sqrt(15) and -3 - sqrt(15).

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The mean and standard deviation of X are 5 and 7.96 people, respectively.

Question Answering Bot guidelines when answering questions on Brainly:When answering questions on Brainly, you should always be factually accurate, professional, and friendly. Furthermore, being concise is crucial; avoid providing extraneous detail. Ensure that you use the following terms in your response: "virus," "randomly," "probability," and "deviation."When it comes to repeating the question in your answer, this is not a requirement. Instead, you should respond to the prompt in a clear, understandable manner that allows the questioner to grasp the concept and proceed with their studies.A person has a 20% chance of getting Virus X at some point in their lifetime. Suppose we randomly sample 20,000 people. Let X be the number of people you ask until one of them has Virus X. a. What is the probability that you ask 25 people before one says they have Virus X? b. Find the mean and standard deviation of Xa. Probability that 25 people are asked before one says they have Virus X:Let us find the probability that one person has Virus X:P(Virus X)=0.20Let us find the probability that one person does not have Virus X:P(no Virus X)=1-P(Virus X)=1-0.20=0.80Now let us find the probability that you have to ask 25 people before one person has Virus X. In order for this to occur, 24 people must not have Virus X and the 25th person must have Virus X. 0.8^24 represents the probability that 24 people do not have Virus X, and 0.2 is the probability that the 25th person has Virus X.P(25)=0.8^24(0.2)=0.0264b. Mean and standard deviation of XWe can use the geometric distribution to calculate the mean and standard deviation of X.The mean is equal to:μ=1/p=1/0.2=5 personsOn average, you will have to ask five people before one person has Virus X.The standard deviation is equal to:σ=√[q/(p²)]=√[(1-p)/(p²)]=√[(0.8)/(0.04)]=7.96 personsTherefore, the mean and standard deviation of X are 5 and 7.96 people, respectively.

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It takes 8 blocks with a side length of 1/4 m to fill a rectangular prism with a volume of 1 m3.

The volume of a rectangular prism is calculated by the formula V = l * w * h, where l is the length, w is the width, and h is the height. To calculate the volume of a rectangular prism with 8 blocks (each with a side length of 1/4 m), we need to determine the length, width, and height of the rectangular prism.

Since each block has a side length of 1/4 m, the length, width, and height of the rectangular prism must be a multiple of that. Therefore, the length, width, and height of the rectangular prism must be 4/4 m, 8/4 m, and 8/4 m, respectively.

Substituting this into the formula, the volume of the rectangular prism is (4/4 m) * (8/4 m) * (8/4 m) = 64/64 m3 = 1 m3. Therefore, it takes 8 blocks with a side length of 1/4 m to fill a rectangular prism with a volume of 1 m3.

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The equatiοn that represents the area = 5.5x + 11. Optiοn C is the cοrrect οptiοn.

There are many different ways tο define an equatiοn. The definitiοn οf an equatiοn in algebra is a mathematical statement that demοnstrates the equality οf twο mathematical expressiοns.

Given that the width οf tulips and lilies in a field 5. 5 meters.

The length οf the field οf tulips is 2 meters.

The length οf the field οf lilies is x meters.

The tοtal length οf the field is (x+2) meters.

The area οf a rectangle is the prοduct οf length and width.

The area οf the field is 5.5(x+2) square meters

The distributive prοperty:

Accοrding tο the distributive prοperty, it is mandatοry tο multiply each οf the twο numbers by the factοr befοre adding them tοgether when a factοr is multiplied by the sum οr additiοn οf twο terms. A (B+ C) = AB + AC is a symbοlic representatiοn οf this prοperty.

Apply the distributive prοperty:

= (5.5 × x) + (5.5×2)

= 5.5x + 11

The equatiοn is Area = 5.5x + 11

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