Suppose that S is a sample space with events A and B. Further suppose that P(A) =0.5, P(B) = 0.7, and P(A ⋂B) = 0.3.
(b) Compute P(A⋂B’).
(c) Compute P((A ⋂B′) ⋃(B ⋂A′)).
(d) Compute P(A ⋃A′).
(e) Compute P(A ⋂A′)
(f) Compute P(A′⋃B′).
g) Compute P(A′⋃B).

Answers

Answer 1

(b) P(A⋂B') = 0.2, (c) P((A⋂B')⋃(B⋂A')) = 0.9, (d) P(A⋃A') = 1, (e) P(A⋂A') = 0, (f) P(A'⋃B') = 0.5, (g) P(A'⋃B) = 0.8. (b) P(A⋂B') can be calculated by subtracting P(A⋂B) from P(B). Since P(B) = 0.7 and P(A⋂B) = 0.3, we have P(A⋂B') = P(B) - P(A⋂B) = 0.7 - 0.3 = 0.2.

(c) P((A⋂B')⋃(B⋂A')) can be calculated by adding the probabilities of the two events. P(A⋂B') = 0.2 and P(B⋂A') can be calculated as P(B⋂A') = P(A') - P(A⋂B') = 1 - 0.2 = 0.8. Therefore, P((A⋂B')⋃(B⋂A')) = P(A⋂B') + P(B⋂A') = 0.2 + 0.8 = 0.9.

(d) P(A⋃A') represents the probability of either event A or its complement A' occurring. Since A and A' are complementary events, their probabilities sum up to 1. Therefore, P(A⋃A') = 1.

(e) The intersection of event A and its complement A' is an empty set, meaning there are no outcomes that satisfy both A and A' simultaneously. Therefore, P(A⋂A') = 0.

(f) P(A'⋃B') represents the probability of either the complement of event A or the complement of event B occurring. Since A' and B' are disjoint events, their probabilities can be added. P(A') = 1 - P(A) = 1 - 0.5 = 0.5 and P(B') = 1 - P(B) = 1 - 0.7 = 0.3. Therefore, P(A'⋃B') = P(A') + P(B') = 0.5 + 0.3 = 0.8.

(g) P(A'⋃B) represents the probability of either the complement of event A or event B occurring. P(A') = 0.5 and P(B) = 0.7. Since A' and B are independent events, their probabilities can be added. Therefore, P(A'⋃B) = P(A') + P(B) = 0.5 + 0.7 = 1.2. However, probabilities should not exceed 1, so the maximum probability is 1. Hence, P(A'⋃B) = 1.

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Related Questions

The absolute value of the difference between 4x and 2 is less than or equal to 2

Answers

The inequality form of the statement is: |4x - 2| ≤ 2. And the lowest value of x that makes this inequality true is x = -1.

To solve for the lowest value of x that makes this inequality true, we need to consider two cases:

If 4x - 2 ≥ 0, then |4x - 2| = 4x - 2, so the equation becomes:

4x - 2 ≤ 2

Adding 2 to both sides, we get:

4x ≤ 4

Dividing both sides by 4, we get:

x ≤ 1

If 4x - 2 < 0, then |4x - 2| = -(4x - 2), so the equation becomes:

-(4x - 2) ≤ 2

Adding 2 to both sides, we get:

-4x + 4 ≤ 4

Dividing both sides by -4, we get:

x ≥ -1

So, the solution to the inequality is -1 ≤ x ≤ 1. This means that any value of x that lies between -1 and 1, inclusive, satisfies the inequality.

So, the lowest value of x that makes this inequality true is x = -1.

"

Complete question

The absolute value of the difference between 4x and 2 is less than or equal to 2.

Write the statement as an inequality, then solve for the lowest value of  x that makes this inequality true. Lowest  value _____

"

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Let z and w be complex numbers. For each of the following statements, determine whether it is true or false. If it is true, prove it. If it is false, give a counter example to disprove it. (a) ∣z+w∣=∣z∣+∣w∣ (b) Arg(zw)=Arg(z)+Arg(w) (c) log(zw)=log(z)+log(w) (d)
zw

=
z


w

Answers

(a) The statement ∣z+w∣=∣z∣+∣w∣ is false. (b) The statement Arg(zw)=Arg(z)+Arg(w) is false. (c) The statement log(zw)=log(z)+log(w) is false. (d)  The statement zw = z * w is true.

(a) The statement ∣z+w∣=∣z∣+∣w∣ is false.

Counterexample: Let z = 1 and w = -1. Then ∣z+w∣ = ∣1 + (-1)∣ = ∣0∣ = 0. However, ∣z∣+∣w∣ = ∣1∣ + ∣-1∣ = 1 + 1 = 2. Since 0 ≠ 2, the statement is false.

(b) The statement Arg(zw)=Arg(z)+Arg(w) is false.

Counterexample: Let z = 1 and w = i (the imaginary unit). Then Arg(zw) = Arg(1*i) = Arg(i) = π/2. However, Arg(z) + Arg(w) = Arg(1) + Arg(i) = 0 + π/2 = π/2. Since π/2 ≠ π/2, the statement is false.

(c) The statement log(zw)=log(z)+log(w) is false.

Counterexample: Let z = 1 and w = i. Then log(zw) = log(1*i) = log(i) = πi/2. However, log(z) + log(w) = log(1) + log(i) = 0 + (πi/2) = πi/2. Since πi/2 ≠ πi/2, the statement is false.

(d) The statement zw = z * w is true.

Proof: Let z = a + bi and w = c + di, where a, b, c, d are real numbers.

Then zw = (a + bi)(c + di) = ac + adi + bci + bdi².

Since i² = -1, we can simplify the expression:

zw = ac + adi + bci - bd = (ac - bd) + (ad + bc)i.

On the other hand, z * w = (a + bi) * (c + di) = (ac - bd) + (ad + bc)i.

Since zw and z * w have the same real and imaginary parts, they are equal.

Therefore, the statement zw = z * w is true.

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Problem: \ The yellow portion of a circle represents 35%: How many degrees are in the angle formed by the edges of the yellow region?

Problem: \ The yellow portion of a circle represents 35%: How many degrees are in the angle formed by

Answers

Answer:

126°

Step-by-step explanation:

Given that the yellow portion covers 35% of the circle, the degree formed by its edges can be calculated as follows:

The degree of a full circle = 360°

To find the degree formed by the edges of the yellow region, we would calculate 35% of 360°:

\( \frac{35}{100}*360 \)

\( \frac{35*360}{100} \)

\( \frac{12600}{100} \)

\( \frac{126}{1} \)

\( 126 \)

126° is formed by the edges of the yellow region.

En la ciencia layla mezclo 0. 155 L de un liquido azul y 0. 185 L de un liquido verde
Cual es el volumen total de la mezcla de layla? muestra tu trabajo

Answers

The total volume of Layla's mixture is 0.34 L when Layla mixed 0.155 L of a blue liquid and 0.185 L of a green liquid.

Volume is a measure of the amount of space occupied by a three-dimensional object, expressed in cubic units such as cubic meters, cubic centimeters, or liters. It measure of the amount of space occupied by a three-dimensional object, expressed in cubic units.

To find the total volume of Layla's mixture, we can simply add the volumes of the blue and green liquids:

Total volume = Volume of blue liquid + Volume of green liquid

Total volume = 0.155 L + 0.185 L

Total volume = 0.34 L

Therefore, the total volume of Layla's mixture is 0.34 L when Layla mixed 0.155 L of a blue liquid and 0.185 L of a green liquid.

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The complete question is :

In science, Layla mixed 0.155 L of a blue liquid and 0.185 L of a green liquid. What is the total volume of Layla's mixture?

Find the GCF of
12 and 54

Answers

6

12 and 54 greatest common factor is 6 because 6 is the highest number you can multiply (besides 18, and 27 in 54) to get 12 and 54!

Answer: GCF = 6

Step-by-step explanation:

The factors of 12 are: 1, 2, 3, 4, 6, 12

The factors of 54 are: 1, 2, 3, 6, 9, 18, 27, 54

Then the greatest common factor is 6.

Find the slope of the line that contains (2,5) and (12, -10)

Answers

Answer:

-15/10 remember slope is rise over run so you look how far it goes up/down then look how far it goes left/right on the graph or do this mentally by adding the y-values and then the x values then put the y/x

Step-by-step explanation:

Answer: 7.3

Step-by-step explanation:

Find the equation of a line that passes through the point (0,5) and has a gradient of 3.
Leave your answer in the form y = mx + c

Answers

answer: y= 3x + 5
Gradient = m
when x= 0, y=5
5=3(0) + 5

What is the value of x and the length of segment DE?
1. StartFraction 5 Over 9 EndFraction = StartFraction 9 Over 2 x + 3 EndFraction
2. 10x + 15 = 9(9)
x =
Length of = units

What is the value of x and the length of segment DE?1. StartFraction 5 Over 9 EndFraction = StartFraction

Answers

My reactions to this:

???

My notes to you:

This is confusing... (At least for me it is...)

Answer:

X= 6.6

Length of de = 16.2

Step-by-step explanation:

1)If 24 kids Sharded and 1789 kids went to a taco bell in 24 hours how many kid sharded in total?


2.a)1638 men cheated on their wife in one week how many men cheated on their wife’s in 7 weeks?

2.b) 47 percent of the men that cheated on their wife’s in 7 weeks have cheated many times before, how many men have cheated before?


Answers

1) Given that 1789 children visited a Taco Bell in 24 hours. We can calculate the number of students who went every hour by dividing this number by the number of hours:

\(1789 / 24 = 74.54\\\frac{1789}{24} = 74.54\)

We get 75 students each hour, rounded up to the nearest whole number.

If 24 children shared, we can calculate the total number of children who shared by multiplying the number of hours by the number of children shared every hour:

24 x 75 = 1800

As a result, 1800 children shared.

How many men cheated on their wives in 7 weeks?

2)If 1638 men cheated on their wives in one week, multiplying by 7 gives us the number of men who cheated on their wives in seven weeks:

1638 x 7 = 11,466

As a result, 11,466 men cheated on their wives in just 7 weeks.

How many men have cheated before?

c) If 47% of the men who cheated on their spouses in 7 weeks cheated numerous times before, we can calculate the number of men who cheated previously by multiplying the total number of men who cheated by the proportion of men who cheated previously:

11,466 x 0.47 = 5,390.02

Rounding to the nearest whole number, we get 5,390 men who have cheated in the past.

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Corey walked three blocks east and then six blocks north. All the blocks were the same length. What is the value of the slope of the line from where Corey began walking to where he finished?
A= -3
B= -2
C= 2
D= 3

Answers

In 1994, an outbreak of illness due to ice cream contaminated with the bacteria salmonella occurred in the United States. The outbreak affected an estimated 224,000 people. If the total population in the U.S. at that time was 260,000,000, which is the best estimate for the percentage of people who were affected?

Answers

According to the question, the best estimate for the percentage of people who were affected by the outbreak is approximately 0.086%.

To estimate the percentage of people affected by the outbreak, we can use the following formula:

\(\[\text{Percentage} = \left(\frac{\text{Affected}}{\text{Total population}}\right) \times 100\]\)

Given that the number of affected people is 224,000 and the total population is 260,000,000, we can substitute these values into the formula:

\(\[\text{Percentage} = \left(\frac{224,000}{260,000,000}\right) \times 100\]\)

Calculating this expression, we find:

\(\[\text{Percentage} \approx 0.086 \%\]\)

Therefore, the best estimate for the percentage of people who were affected by the outbreak is approximately 0.086%.

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a 700-liter tank initially contains 100 liters of brine with 50 kilograms of salt dissolved in it. brine containing 1 kilogram of salt per liter is pumped into the tank at the rate of 8 liters per second, and the wellmixed brine in the tank flows out at the rate of 6 liters per second. how much salt will the tank contain when it is just full of brine?

Answers

Hence, when the is full, it will hold 700 liters of brine and 250 kg of salts dissolved in it.

What is a kilogram exactly?

The fundamental mass unit in the measuring units is the kilogram (kg). The weight of 1,000 cubic centimeters of water is very close to (and was initially planned to be exactly) one kilogram. The precise definition of a pound is 0.45359237 kg.

Let's first figure out how long is takes for the brine tank to fill.

The tank must be filled up to its maximum capacity of 700 liters, which is 100 liters of brine at first. As a result, the amount of brine that must be added is:

700 liters - 100 liters = 600 liters

The time required to fill it up 600 liters of brine if 8 liters of brine per second are injected into the tank is:

600 liters / 8 liters per second = 75 seconds

Let's check the tank's salt content after 75 seconds.

The amount of salt in the tank after 75 seconds is equal to: 100 kilograms (the original amount of salt) + (8 liters per unit - 6 each second) x 1 kilogram of salt per liter x 75 seconds. The rate of salt in the tank increasing is 1 kilogram per liter per second.

= 100 kilograms + 150 kilograms

= 250 kilograms

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true or false the decimalformat class is part of the java api so it is automatically available to your programs.

Answers

The statement is true. The DecimalFormat class is part of the Java API, specifically within java.text package, so it is automatically available to your programs. You can use it to format numbers in various ways, such as for displaying currency or percentages.

DecimalFormat is a concrete subclass of NumberFormat that formats decimal numbers. It has a variety of features designed to make it possible to parse and format numbers in any locale, including support for Western, Arabic, and Indic digits. It also supports different kinds of numbers, including integers (123), fixed-point numbers (123.4), scientific notation (1.23E4), percentages (12%), and currency amounts ($123). All of these can be localized.

To obtain a NumberFormat for a specific locale, including the default locale, call one of NumberFormat's factory methods, such as getInstance(). In general, do not call the DecimalFormat constructors directly, since the NumberFormat factory methods may return subclasses other than DecimalFormat. If you need to customize the format object, do something like this:

NumberFormat f = NumberFormat.getInstance(loc);

if (f instanceof DecimalFormat) {

    ((DecimalFormat) f).setDecimalSeparatorAlwaysShown(true);

}

A DecimalFormat comprises a pattern and a set of symbols. The pattern may be set directly using applyPattern(), or indirectly using the API methods. The symbols are stored in a DecimalFormatSymbols object. When using the NumberFormat factory methods, the pattern and symbols are read from localized ResourceBundles

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True. The Decimal Format class is a part of the Java API and is included in the java.text package.

It is automatically available to Java programs without the need for any additional installations or imports.

The Decimal Format class is part of the Java API, and it is automatically available to your programs.

The Java API is a collection of pre-written classes, methods, and interfaces that are part of the Java Development Kit (JDK).

These classes and methods provide a wide range of functionalities that can be utilized by Java developers to build robust applications.
The Decimal Format class, specifically, is a subclass of the Number Format class and is used to format decimal numbers according to a specific pattern.

The class provides methods to format and parse decimal numbers and can be used to specify the number of digits after the decimal point, the use of a thousand separator, and the currency symbol.
The Decimal Format class in your Java program, you simply need to import the class using the import statement, and then create an instance of the class.

For example:
import java. text. Decimal Format.
public class MyClass

{
public static void main (String [] args) {
Decimal Format df = new Decimal Format("#.00");
double num = 1234.5678
System.out.println(df.format(num));
}
}
The Decimal Format class using the import statement, and then create an instance of the class called df.

We then use the format method of the class to format the decimal number 1234.5678 with two decimal places.
The Decimal Format class is an essential part of the Java API and is automatically available to your programs.

Its inclusion in the Java API makes it easier for Java developers to format decimal numbers in their applications.

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What is mZBAC?
60°
(not drawn to scale)

What is mZBAC?60(not drawn to scale)

Answers

Answer:

<BAC=60°

Step-by-step explanation:

THIS IS THE ANSWER

help please asap!!!!!

help please asap!!!!!

Answers

Answer:

-0.9 gallons per minute

Step-by-step explanation:

HELP 15 POINTS
Write a rule for the nth term of the sequence. Then find a20 -
51,48,45,42

HELP 15 POINTSWrite a rule for the nth term of the sequence. Then find a20 -51,48,45,42

Answers

Answer:

45 because it is what I think

Pls help and explain this i don't understand

Pls help and explain this i don't understand

Answers

That statement is not accurate.  If the height of the two cylinders is the same, but the radii are different, their volumes will not be equal.

The volume of a right cylinder is calculated using the formula

V = πr²h, where r is the radius and h is the height.

If the radius of the right cylinder is 5 inches, the volume will be different from that of the oblique cylinder with a radius of 4 inches, even if their heights are the same.

To have the same volume, both the height and the radius of the cylinders would need to be equal.

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eval calculates an expression and puts the resulting ____ into a new or existing field.

Answers

Eval is a function that evaluates an expression and puts the resulting value into a new or existing field.

To calculate the value of an expression using Eval, you must use the correct syntax. The syntax for Eval is Eval(expression, optional_parameter). The expression can take the form of a mathematical equation or a logical expression. For example, if you wanted to calculate the sum of two numbers, you would use the following expression: Eval(A + B). The optional parameter allows you to specify a range of values to evaluate the expression against.

For example, if you wanted to calculate the sum of two numbers within a given range, you would use the following expression: Eval(A + B, range). The range parameter can be used to specify the starting and ending values that the expression should be evaluated against.

Using Eval to calculate an expression is a useful tool for quickly getting the desired value. It is also useful for quickly testing the accuracy of a complex expression before implementing it in your code.

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$3 subtracted from the cost of the book just number 8!!!

Answers

Answer:

3-8=5

Step-by-step explanation:

answer :

x = 11

explanation :

" $3 subtracted from the cost of the book just number 8! "

As an equation this would be :

x - 3 = 8

SOLVE

x - 3 = 8

  + 3  + 3

x = 11

KEY

x = cost of book

in a class of 40 students, 19 play tennis, 20 play netball, and 8 play neither of these sports. a student is randomly chosen from the class. determine the probability that the student:

Answers

Therefore, the probability that the student plays neither tennis nor netball is 1/5 = 0.2 or 20%.

There are 40 students in a class. 19 students play tennis, 20 students play netball, and 8 students play neither of these sports.

A student is chosen randomly from the class, and we need to determine the probability that the student: Plays tennis If a student is randomly chosen from the class, the probability that the student plays tennis is: Probability of playing tennis= (Number of students playing tennis) /

(Total number of students in the class) Probability of playing tennis= 19 / 40Plays netball if  a student is randomly chosen from the class, the probability that the student plays netball is: Probability of playing netball= (Number of students playing netball) / (Total number of students in the class)Probability of playing netball= 20 / 40 = 1/2Plays neither of these sports a student is randomly chosen from the class, the probability that the student plays neither tennis nor netball is

:Probability of playing neither tennis nor netball= (Number of students who do not play either of the two sports) / (Total number of students in the class)Probability of playing neither tennis nor netball= 8 / 40Probability that the student plays tennis and netball

Probability of playing tennis and netball = (Number of students playing both tennis and netball) / (Total number of students in the class)We are given that none of the students play both tennis and netball, so the probability of playing both tennis and netball is 0.

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For the corporate headquarters, an executive wants to place a company logo that is six feet in diameter with the sides of the H five feet tall on the front wall. What is the width x of the crossbar for the H?
Round to the nearest hundredth

Answers

The requried width of the crossbar for the H is 3.96 ft.

What are Pythagorean triplets?  

In a right-angled triangle, its sides, such as hypotenuse, perpendicular and base is Pythagorean triplets.

Here,

Let, from the figure,
b = 5

c = 1/2*6= 3
e = 1/2*b = 1/2*5 = 2.5

a = √[c²-e²]

a = √[3²-2.25²]

a = √9-5.0625

a = 1.98

x = 2a = 2*1.98=3.96

Thus, the requried width of the crossbar for the H is 3.96 ft.

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For the corporate headquarters, an executive wants to place a company logo that is six feet in diameter

1. Find the length of each leg.
R
Q
30⁰
4
60%
P

1. Find the length of each leg.RQ30460%P

Answers

Answer:

QP = 2

QR = 2√3

Step-by-step explanation:

This is a special right triangle with angle measures as follows:

30° - 60° - 90°

And side lengths represented with:

x - x√3 - 2x respectively to angle measures.

The side length that sees angle measure 90, hypotenuse, is given as 4 so the legs would be:

2 and 2√3

Find the maximum rate of change of f at the given point and the direction in which it occurs.
F(x, y, z) = (8x + 5y)/z
(5, 6, -1)

maximum rate of change
direction vector

Answers

The direction in which the maximum rate of change of f occurs at the point (5, 6, -1) is approximately (-0.17, -0.11, -0.98).

To find the maximum rate of change of the function f at the given point (5, 6, -1) and the direction in which it occurs, we can calculate the gradient of f at that point.

The gradient vector represents the direction of maximum increase of the function, and its magnitude represents the rate of change in that direction.

The gradient vector (∇f) of f(x, y, z) = (8x + 5y)/z can be found by taking the partial derivatives with respect to each variable:

∂f/∂x = 8/z

∂f/∂y = 5/z

∂f/∂z = -(8x + 5y)/z^2

Evaluated at the point (5, 6, -1), we have:

∂f/∂x = 8/(-1) = -8

∂f/∂y = 5/(-1) = -5

∂f/∂z = -((8(5) + 5(6))/(-1)^2) = -46

So, the gradient vector (∇f) at the point (5, 6, -1) is (-8, -5, -46).

The maximum rate of change of f at this point is given by the magnitude of the gradient vector:

|∇f| = √((-8)^2 + (-5)^2 + (-46)^2) = √(64 + 25 + 2116) = √2205 = 47.

Therefore, the maximum rate of change of f at the point (5, 6, -1) is 47.

To determine the direction in which this maximum rate of change occurs, we normalize the gradient vector by dividing it by its magnitude:

Direction vector = (∇f) / |∇f| = (-8/47, -5/47, -46/47).

Hence, the direction in which the maximum rate of change of f occurs at the point (5, 6, -1) is approximately (-0.17, -0.11, -0.98).

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if a is an n × n matrix having linearly independent eigenvectors v1, v2, . . . , vn, then the n × n matrix p = [ v1 v2 . . . vn ] T/F

Answers

True. If matrix A is an n × n matrix with linearly independent eigenvectors v1, v2, ..., vn, then the n × n matrix P = [v1 v2 ... vn] forms a matrix of eigenvectors. In other words, the columns of matrix P are the eigenvectors of matrix A.

1. When a matrix A has linearly independent eigenvectors v1, v2, ..., vn, it means that each eigenvector corresponds to a distinct eigenvalue. The eigenvectors span the entire vector space of dimension n.

2. The matrix P = [v1 v2 ... vn] is constructed by arranging the eigenvectors v1, v2, ..., vn as columns. Since the eigenvectors are linearly independent, the matrix P formed by these columns is invertible.

3. When we multiply matrix P by its inverse P^(-1), we obtain the identity matrix I. This implies that P^(-1) exists and is the inverse of P.

4. Now, let's consider the equation A * P = P * D, where D is a diagonal matrix that contains the eigenvalues corresponding to the eigenvectors v1, v2, ..., vn along its diagonal.

5. Multiplying both sides of the equation by P^(-1) from the left, we get P^(-1) * A * P = P^(-1) * P * D, which simplifies to P^(-1) * A * P = D.

6. Since P^(-1) exists, we can rewrite the equation as A = P * D * P^(-1). This equation shows that matrix A can be diagonalized using the matrix P formed by the eigenvectors and its inverse P^(-1).

7. Therefore, matrix P = [v1 v2 ... vn] is indeed an n × n matrix consisting of linearly independent eigenvectors of matrix A.

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The triangle below is equilateral. That means all the sides are the same length. What is the value of y?

The triangle below is equilateral. That means all the sides are the same length. What is the value of

Answers

Answer:

y = 7

Step-by-step explanation:

3x = 5x - 8

8 = 2x

x = 4

3x = 5 + y

3(4) = 5 + y

12 = 5 + y

7 = y

#teamtrees #WAP (Water And Plant)

Answer:

7

Step-by-step explanation:

As all sides are equal,

3x=5x-8

2x=8

x=4

5+y=3x

5+y=3*4

5+y=12

y=12-5

y=7

Can you do Step by Steps for this problem, please.

Can you do Step by Steps for this problem, please.

Answers

Answer:

36.9

Step-by-step explanation:

sinJ=\(\frac{21}{35}\)

    J= \(sin^{-1}\)\(\frac{21}{35}\)

    J= 36.9

Can someone plz help me with this one problem!!!

Can someone plz help me with this one problem!!!

Answers

Answer:

Add all the given side lengths:

1 + 16 + 16 + 4 = 37!

The three straight paths, , , and , meet each other at three points, A, B, and C. How do these points of intersection differ from each other? Explain the differences in terms of the angles that you see. Also look at the length of the side opposite each angle. What pattern do you see regarding the measurements? In what situation would all the points of intersection resemble one another? Modify the triangle in GeoGebra to help you with your answers

Answers

Answer:

Step-by-step explanation:

I am sort. I have no idea

Answer:

The three straight paths intersect at different angles. In other words, the amountrequired to turn one path onto the other is different about each vertex. Thelargest angle is opposite the longest side, and the smallest angle is opposite theshortest side. If all three points of intersection look the same, the result is atriangle with three equal angles and three equal sides.

Step-by-step explanation:

a certain store has 3,000 employees working at its main location in a city and 100 employees working at a smaller location outside the city. the store manager will select a sample of 50 employees from all the employees to ask their opinions about extending store hours during the holidays. what is the advantage of selecting a stratified random sample, with location as strata, instead of a simple random sample? responses

Answers

The answer is the stratified sample assures that the opinions of employees from both locations will be represented..

The survey results will accurately reflect the opinions of both urban and rural employees if you choose this option. By soliciting feedback from employees in both regions, it will be possible to ensure that any policy based on the results of this survey not only represents the interests of urban employees, who make up the bulk of the workforce, but also those of rural employees.

Option B is untrue since a stratified sample will cost more to implement than a straightforward random sample and won't always result in financial savings.

Option C does not applicable because it is just a supposition without any supporting data.

Choice D is False, since a stratified sample in this situation produces results that are more typical of the store's employees from both locations than a random sample.

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is anyone expert here in data forecasting methods? I need some help in some topics like time series(holts, holts winter), naive method, regression, acf, pacf, arima, stl method and multivariate time series. please reply if you can help me with these topics

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Yes, there are experts here in data forecasting methods who can help you with the topics you've mentioned including time series (holts, holts winter), naive method, regression, acf, pacf, arima, stl method and multivariate time series.

Below are brief explanations of each of these terms:

Time Series: A time series is a sequence of observations of a particular quantity measured over time. Holts Method: The Holt’s method is a forecasting method that forecasts the data by taking into account the trend component along with the level component. Holts Winter Method: Holt's winter model is used to forecast seasonal univariate time series.Naive Method: The naive method is a forecasting method that uses the most recent observation as a forecast for the next time period.Regression: Regression is a statistical method used to estimate the strength and direction of the relationship between two or more variables.ACF & PACF: Autocorrelation function (ACF) and partial autocorrelation function (PACF) are statistical tools used to determine the nature of the correlation between a variable and its lag.ARIMA: ARIMA stands for AutoRegressive Integrated Moving Average. ARIMA is a forecasting technique that uses past data points to predict future values.STL Method: STL is a time series decomposition method that separates a time series into three components: trend, seasonality, and random.Multivariate Time Series: Multivariate time series analysis deals with the analysis of time series data that involves more than one variable.Based on the topics you've mentioned, you may want to ask specific questions regarding these topics to get more detailed answers.

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