Use the​ power-reducing formulas to rewrite the expression as an equivalent expression that does not contain powers of trigonometric functions greater than 1. 18sin^2(x)cos^2(x)

Answers

Answer 1

An equivalent expression to 18sin^2(x)cos^2(x) that does not contain powers of trigonometric functions greater than 1 is 9 - 9cos(4x)/8.

How did we get the value?

The power-reducing formulas state that:

sin^2(x) = (1 - cos(2x))/2

cos^2(x) = (1 + cos(2x))/2

Using these formulas, we can rewrite the expression 18sin^2(x)cos^2(x) as:

18sin^2(x)cos^2(x) = 18[(1 - cos(2x))/2][(1 + cos(2x))/2]

Expanding the right-hand side of the equation, we get:

18[(1 - cos^2(2x))/4]

Using the identity cos^2(2x) = (1 + cos(4x))/2, we can simplify further:

18[(1 - (1 + cos(4x))/2)/4] = 9 - 9cos(4x)/8

Therefore, an equivalent expression to 18sin^2(x)cos^2(x) that does not contain powers of trigonometric functions greater than 1 is 9 - 9cos(4x)/8.

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Related Questions

100 POINTS!! PLS HELP QUICKLY <3 SEE IMAGE FOR DETAILS.
a table of values for Function A and the graph of B are shown

Answers

The equation of the third linear function is:

y = (-1/3)x + (8/3)

How do we calculate?

To find a linear function with a rate of change between Function A and Function B, we need to calculate the rates of change for each function.

For Function A, the rate of change is:

(2 - (-4)) / (6 - (-1)) = 6/7

For Function B, we find the rate of change by selecting any two points on the graph, such as (2, 6) and (-4, 7):

(6 - 7) / (2 - (-4)) = -1/6

So the rate of change for Function A is 6/7, and the rate of change for Function B is -1/6.

To find a linear function with a rate of change between these two values, we can select any value between 6/7 and -1/6. Let's choose a rate of change of -1/3.

We can use the point-slope form of a linear equation to write the equation of the line with a rate of change of -1/3 and passing through the point (2, 6):

y - 6 = (-1/3) * (x - 2)

y = (-1/3)x + (8/3)

In conclusion, the equation of the third linear function is:

y = (-1/3)x + (8/3)

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regular priced at $85 on sale for 75%
off regular price

Answers

Answer: $21.25

Step-by-step explanation:
This can be solved using the following formula:

discount = (discount rate) x (regular price) sale price = regular price - discountPlugging in the values you provided:discount = (0.75) x (85) discount = 63.75sale price = 85 - 63.75 sale price = 21.25

Therefore, the sale price of the item is $21.25.

which diagram represents the expression |-5|

Answers

The first option because the absolute value of -5 is 5!

You roll a 6-sided die.
What is P(less than 4)?
Write your answer as a fraction or whole number.

Answers

The value of the probability of rolling a number less than 4 is 1/2

Calculating the value of  P(less than 4)?

The probability of rolling a number less than 4 on a fair 6-sided die can be calculated by counting the number of favorable outcomes and dividing it by the total number of possible outcomes.

There are three favorable outcomes: 1, 2, and 3.There are six possible outcomes: 1, 2, 3, 4, 5, and 6.

Therefore, the probability of rolling a number less than 4 is:

P(less than 4) = favorable outcomes / total outcomes = 3/6 = 1/2

So the probability of rolling a number less than 4 is 1/2, or 50%.

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Leakages in Zambia letter to the Editor

Answers

Dear Editor,


I am writing to express my concern about the issue of leakages in Zambia. The constant leakages of natural resources such as oil, gas and minerals have been a major setback to the country's economic growth and development.


It is disheartening to note that despite the country being rich in natural resources, the benefits of these resources have not been fully realized due to leakages. This has led to a loss of revenue that could have been used to improve the lives of citizens through investments in education, healthcare, and infrastructure.


Furthermore, leakages also have negative environmental impacts, which can affect the health and wellbeing of communities living in the vicinity of these resources.


As a concerned citizen, I urge the government to take decisive action to curb leakages and ensure that the country's natural resources are utilized for the benefit of all Zambians.


Sincerely, [Your Name]

The graph of f(x)=x2 was transformed to create the graph of g(x)=−f(x−1)+2 Which is the graph of g ?

Answers

To graph g(x) = -f(x - 1) + 2, we need to apply the following transformations to the graph of f(x) = x^2:

1. Shift the graph of f(x) to the right by 1 unit, which means replacing x with (x - 1) in the equation. This gives us: f(x - 1) = (x - 1)^2.

2. Reflect the graph of f(x - 1) about the x-axis by multiplying the expression by -1. This gives us: -f(x - 1) = -(x - 1)^2.

3. Shift the graph of -f(x - 1) up by 2 units. This gives us: g(x) = -f(x - 1) + 2 = -(x - 1)^2 + 2.

Therefore, the graph of g(x) is a downward-facing parabola that has been shifted 1 unit to the right and 2 units up from the graph of f(x) = x^2.

Use the word factor product quotient in sum to describe the parts of five minus M divided by N -2-8 times M plus N

Answers

The parts of the expression in terms of factor, product, quotient, and sum are:

Factor- (5 - M)/(N - 2)

Product- 8 * M

Quotient- (5 - M)/(N - 2)

Sum- (5 - M)/(N - 2) + N - 8 * M - 2

Explain expression

An expression is a mathematical phrase that contains numbers, variables, and/or mathematical operations. It can be simplified or evaluated using mathematical rules and principles.

What is meant by quotient?

The quotient is the result obtained when one quantity is divided by another, usually represented as a whole number, fraction, or decimal. It is a fundamental concept in mathematics.

According to the given information

The given expression is:

(5 - M)/(N - 2) - 8 * M + N

We can break it down into the following parts using the words factor, product, quotient, and sum:

Factor: (5 - M)/(N - 2)

Product: 8 * M

Quotient: (5 - M)/(N - 2)

Sum: (5 - M)/(N - 2) + N - 8 * M - 2

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Write a quadratic equation to match this graph.

Answers

The quadratic equation written in vertex form is:

y = (x + 1)^2 - 9

How to write the quadratic equation?

A quadratic equation with a leading coefficient a and a vertex (h, k) can be written as:

y = a*(x - h)^2 + k

On the graph we can see that the vertex is at (-1, -9), then we have:

y = a*(x + 1)^2 - 9

Now we also can see that the y-intercept is y = -8, then evaluating in zero we should get:

-8 = a*(0 + 1)^2 - 9

-8 = a - 9

-8 + 9 = a = 1

The quadratic equation is:

y = (x + 1)^2 - 9

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Use synthetic division to divide.
(x^3-12x^2+15x+7)/(x+4)

Answers

The synthetic division of (x³ - 12x² + 15x + 7) / (x +4) gives Quotient

x² + 8x -17.

We have to divide.

(x³ - 12x² + 15x + 7) / (x +4)

Now, performing the division we get

              (x + 4) | x³ - 12x² + 15x + 7 | x² + 8x -17

                           x³ - 4x²

                         ________

                                  8x² + 15x

                                   8x² + 32x

                               ___________

                                             -17x + 7

                                               -17x -68

                                             __________

                                                          61

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15 Points 15 Points 15 Points

(Diversifying Portfolios MC)



Name of Stock Symbol High Low Close

Stock A A 105.19 103.25 103.38

Stock B B 145.18 43.28 144.05



Last year, an investor purchased 120 shares of stock A at $90 per share and 35 shares of stock B at $145 per share. What is the difference in overall loss or gain between selling at the current day's high price or low price?


A The difference in overall gain is $299.30.

B The difference in overall loss is $299.30.

C The difference in overall gain is $293.90.

D The difference in overall loss is $293.90.

Answers

the answer is option C: The difference in overall gain is $293.90.

How to solve the question?

To calculate the difference in overall loss or gain, we need to calculate the current value of the investor's portfolio for both high and low prices and then compare the two values.

First, let's calculate the current value of the investor's holdings for stock A:

High price: 120 shares x $105.19 per share = $12,623.80

Low price: 120 shares x $103.25 per share = $12,390.00

Next, let's calculate the current value of the investor's holdings for stock B:

High price: 35 shares x $145.18 per share = $5,080.30

Low price: 35 shares x $43.28 per share = $1,514.80

Now we can calculate the total current value of the investor's portfolio:

High price: $12,623.80 + $5,080.30 = $17,704.10

Low price: $12,390.00 + $1,514.80 = $13,904.80

The difference between the two values is:

High price: $17,704.10 - ($120 x $90) - ($35 x $145) = $299.30

Low price: $13,904.80 - ($120 x $90) - ($35 x $145) = $293.90

Therefore, the answer is option C: The difference in overall gain is $293.90.

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ms george baked 2 cakes of equal size each of her 12 guests at the same amount of cake, and no cake was left over.

a What fraction of a cake did each guest eat

b. How do you think ms george cut the cakes into equal pieces? Explain

Answers

ANSWER TO A: each guest got 1/6 of a cake. To solve, you divide 2/1 by 12/1.
To do so, you do keep (keep the 2/1 the same) change, (change the division symbol to multiplication) and flip (1/12)
So now you multiply 2/1 • 1/12 which would get you 2/12. 2/12 is equivalent to 1/6. Therefore each guest gets 1/6 of a cake.

ANSWER TO B: Ms George cut each cake into 6 equal pieces (or a total of 12) She did this because there are 12 people, who each need a slice out of 2 cakes. You would have to divide 2 into 12, which would give you 6 slices per cake.

I AM SO SORRY IF THIS DID NOT MAKE SENSE!

Suppose a golfer took 70 shots to finish his or her round on this course. What integer represents this​ score?

Answers

In golf, lower scores are better, so a score of 70 is considered to be a good score for a round of golf, especially on a challenging course.

What is integer?

An integer is a whole number that can be either positive, negative or zero, and does not have a fractional or decimal part. Integers can be represented on a number line, with positive integers located to the right of zero and negative integers located to the left of zero.

According to question:

an integer is a whole number that does not have a fractional or decimal part. In golf, a player's score for a round is determined by counting the number of strokes they took to complete the course.

So, if a golfer took 70 shots to finish his or her round on a golf course, the integer that represents this score is simply 70. This is because 70 is a whole number and there are no fractional or decimal parts involved in the score.

In golf, lower scores are better, so a score of 70 is considered to be a good score for a round of golf, especially on a challenging course.

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Give an example of data you would put in a line plot, histogram, and box plot. Explain why you chose each type of representation. How is a line plot similar to and different from a box plot
Please, I need now

Answers

Let's say we have a dataset representing the heights (in inches) of 30 students in a class.

How to represent the data in line plot, histogram and box plot?

Here's an example of data and how we can represent it using a line plot, histogram, and box plot:

Line Plot:

Data: Heights of 30 students (in inches): 60, 62, 61, 63, 64, 65, 63, 62, 64, 63, 61, 60, 61, 63, 62, 64, 65, 64, 63, 62, 61, 63, 65, 64, 63, 62, 61, 60

A line plot would be suitable for visualizing this dataset, as it provides a simple and clear representation of individual data points along a number line. A line plot is useful for showing the distribution of data points and identifying any patterns or trends in the dataset.

Histogram:

Data: Heights of 30 students (in inches): 60, 62, 61, 63, 64, 65, 63, 62, 64, 63, 61, 60, 61, 63, 62, 64, 65, 64, 63, 62, 61, 63, 65, 64, 63, 62, 61, 60

A histogram would be suitable for visualizing this dataset, as it provides a graphical representation of the distribution of data points in different intervals or bins. The heights of the students can be grouped into bins, such as 60-62, 62-64, 64-66, etc., and the frequency of data points falling into each bin can be represented by the height of bars.

Box Plot:

Data: Heights of 30 students (in inches): 60, 62, 61, 63, 64, 65, 63, 62, 64, 63, 61, 60, 61, 63, 62, 64, 65, 64, 63, 62, 61, 63, 65, 64, 63, 62, 61, 60

A box plot, also known as a box-and-whisker plot, would be suitable for visualizing this dataset, as it provides a summary of the data's distribution, including measures of central tendency and variability. The box in the plot represents the interquartile range (IQR), which contains the middle 50% of the data, with the line inside the box representing the median.

Similarities between line plot and box plot:

Both line plot and box plot provide a visual representation of the distribution of data points.Both line plot and box plot can show individual data points or values.

Differences between line plot and box plot:

Line plot displays data points along a number line, while a box plot summarizes data using quartiles and displays them in a box-and-whisker form

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Match each inequality on the left with its correct solution on the right.


Some answer choices on the right will be used more than once.

Answers

Answer:

4x + 2 > 10 and -3x-1 > 5 : No solution

| 3x | + 4< 10:  -2 < 2 x < 2

| x+2 | + 4< 3: No solution

|2x+4 | +2 > 4: x > -1 or x < -3

Step-by-step explanation:

graph math pls help me!!!!

Answers

Looking at the table, If Bridget has 10 animals in total with 30 legs, it only means she has 5 chicken.

What are the missing values in the table?

Based on the information on the table,

For the number of chicken legs, we say

9 x 2 = 18       3 x 2 = 6          7 x 2= 14       14 x 2 = 28

If we sum these number to the total number of legs in each row, it would be;  4 + 18 = 22   8+6 = 14   12 + 14 = 26     16+28 = 44

This means that all the values provided so far does not give us the accurate number of legs of the animals.

If 5p = 20L the number of hen should be 30- 20 = 10/2 = 5

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TREE CLIMBING Keara climbs a tree and looks down at her friend through a pair of range finders. According to the range finders, the distance from Keara to her friend is 55 feet. If the angle of depression from Keara to her friend is 40°, how high has Keara climbed in the tree? Round to the nearest tenth of a foot. feet

Answers

Keara has climbed up to 41 feet in the tree.

How to round off a value to the nearest tenth?

Rounding off a value to the nearest tenth means finding the closest multiple of 0.1 to the given value. To do this, you need to look at the digit in the hundredths place. If the digit is 5 or greater, you round the tenths place up by 1. If the digit is less than 5, you leave the tenths place unchanged. For example, to round the value 3.874 to the nearest tenth, you would look at the digit in the hundredths place, which is 7. Since 7 is greater than 5, you round up the tenths place to 8, and the rounded value is 3.9. Rounding to the nearest tenth is often used when working with measurements or values that require a certain level of precision.

According to the range finders, the distance from Keara to her friend is 55 feet and the angle of depression from Keara to her friend is 40°.

From this the following diagram can be drawn.

Now, we need to find the length of AB which will denote how high Keara climbed.

We can use the trigonometric sine function to find the length of AB,

Sin 40° = opposite side / hypotenuse = AB/ BC = AB/ 55

Hence AB = 55 × Sin 40° ≈ 40.981

That is she would have climbed approximately 41 feet.

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Find the value of x.

Answers

The value of x when the secant intersect is 5.

How to find the length of secant when they intersect?

When two secants intersect outside a circle, the circle divides the secants into segments that are proportional with each other.

Therefore,

(4 + 5)4 = (x - 2 + x + 4)(x - 2)

9(4) = (2x + 2)(x - 2)

36 = 2x² - 4x + 2x - 4

2x² - 2x - 4 - 36 = 0

2x² - 2x - 40 = 0

x² - x - 20 = 0

x² - 5x + 4x  - 20 = 0

x(x - 5) + 4(x - 5) = 0

(x + 4)(x - 5) = 0

(x - 5)(x + 4) = 0

x = 5 or x = -4

Therefore,

x = 5

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There are x counters in a bag.
15 of the counters are blue.
Hussain takes at random 24 counters from the bag.
6 of these 24 counters are blue.
Work out an estimate for the value of x.

Answers

Answer: c=60

Step-by-step explanation: Based on the given conditions, formulate::

15/c= 6/24

Final answer:

By setting up and solving a proportion that represents the ratio of blue counters to total counters in two different scenarios, we find that an estimate for the total number of counters in the bag is 60.

Explanation:

We can set up a proportion to solve this problem. In this case, the counters represent the total numbers in different situations. Initially, there are 15 blue counters out of an unknown total 'x'. Meanwhile, Hussain picked 6 blue counters out of 24. As these are similar situations (picking blue counters out of a total), we can express this as a proportion as follows: 15/x = 6/24 .

To solve this proportion, simply cross multiply and solve for x: 15*24 = 6*x. Simplify this to 360 = 6x. Diving both sides by 6 gives the value of x as 60.

So an estimate for the total number of counters in the bag, or 'x', is 60.

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Mr. Leonard is renting a car for one day. The table below shows the total amount he will be charged for the car based on the number of miles he drivesWhich equation best represents c, the number of dollars Mr. Leonard should be charged for driving m miles?

Answers

Answer:

t = r + cm

Step-by-step explanation:

t = total amount of money spent on rental car

r equals the original payment amount (like how much it cost to even attain tthe car)

c = the number of dollars for every mile

m = amount of miles

You would multiply c and m since every mile the dollars goes up by itself

You need to add the original payment, r, to find the correct total

If there is no original payment then the formula could also just be :

t = cm

total = miles x money per 1 mile

I could provide better explanation if I had the chart you mentioned but hope this helps!

Brad Harrington bought 31 shares of one stock for $9 3/4 per share and 26 shares of another stock for $11 5/8 per share. How much did he pay?

Answers

Answer:

  $604.50

Step-by-step explanation:

You want to know the total paid for 31 shares at $9 3/4 and 26 shares at $11 5/8.

Total paid

The total paid is computed the same as for any other purchase. It is the sum of the products of quantity and price each.

  total = (31)(9 3/4) +(26)(11 5/8) = 604.50

Harrington paid $604.50 for the stock.

Help with the following 2 problems please

Answers

2. The solution to the integral is: -2cot(x) - 4ln|sin(x)| - 3x + C

6. The integral converges and its value is 0.

How did we get these values?

2. To solve this integral using partial fractions, we need to rewrite the integrand as a sum of simpler fractions. We first rewrite the integrand as follows:

(2cos(x)/sin²(x) - 4 sin(x) - 5) = 2/sin(x)² - 4sin(x) - 5

Now we need to express the first term 2/sin(x)² as a sum of two fractions with different denominators. To do this, we let:

2/sin(x)² = A/sin(x) + B/sin(x)²

Multiplying both sides by sin(x)², we have:

2 = A sin(x) + B

Next, we need to determine the values of A and B. To do this, we can substitute two different values for x that make sin(x) ≠ 0, such as x = 0 and x = π/2.

Substituting x = 0, we get:

2 = A(0) + B

2 = B

Substituting x = π/2, we get:

2 = A(1) + B

2 = A + B

2 = A + 2

Therefore, A = 0.

So we have:

2/sin(x)² = B/sin(x)²

B = 2

Substituting these values back into our original expression, we get:

(2cos(x)/sin²(x) - 4 sin(x) - 5) = 2/sin(x)² - 4sin(x) - 5

= 2/sin(x)² - 4sin(x)/sin(x) + 2sin(x)/sin(x) - 5

= 2/sin(x)² - 4cot(x) + 2 - 5

= 2/sin(x)² - 4cot(x) - 3

Now we can integrate each term separately:

∫2/sin(x)² dx = -2cot(x) + C1

∫-4cot(x) dx = -4ln|sin(x)| + C2

∫-3 dx = -3x + C3

So the solution to the integral is:

∫(2cos(x)/sin²(x) - 4 sin(x) - 5) dx = -2cot(x) - 4ln|sin(x)| - 3x + C

where C = C1 + C2 + C3 is the constant of integration.

6. We can solve this integral by using the substitution u = x - 2, which gives us du = dx. We can then rewrite the integral as:

∫₁ (1/(x-2)²) dx = ∞

∫-∞ (1/u²) du

Now, we can evaluate this integral as:

∫-∞ (1/u²) du = [-1/u]∞

= [0 - (-1/(-∞))]

= 0 - 0

= 0

Therefore, the integral converges and its value is 0.

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The text format of the questions:

2. Use the method of partial fractions to find the integral:

∫(2cos(x)/sin²(x) - 4 sin(x) - 5) dx

6. State whether the integral converges or diverges. If it converges give the value it converges to.

∫₁ (1/(x-2)²) dx

NO LINKS!! URGENT HELP PLEASE!!

Express the statement as an inequality Part 6a^2

Answers

Answers:

(c)  [tex]q \le \pi[/tex]

(d)  [tex]2 \ge d \ge 1[/tex]

Explanation:

The "less than or equal to" sign is ≤ which has a "less than sign" placed on top of a single horizontal bar. It can be thought of something like this [tex]\stackrel{ < }{=}[/tex] except there isn't a second horizontal bar.

The "d is between 2 and 1" seems to have a strange order to it. I have a feeling your teacher is wanting 2 ≥ d ≥ 1 because of that order. Normally we would list things from smallest to largest. We involve "or equal to" if we want to include the endpoints.

Part a: q is less than or equal to π: q ≤ π.

Part b: d is between 2 and 1: 1 < d < 2.

Explain about the inequality sign:

Less than (<), more than (>), less than or equal (≤), greater than or equal (≥), and not equal (≠) are the inequality symbols.

Numbers are compared using inequalities to identify the range (or ranges) of values which satisfy the requirements of a certain variable.

Addition, subtraction, multiplication, and division are operations on linear inequalities. Here is a list of the fundamental guidelines for these operations.The inequality sign is unaffected by subtracting the same amount from both sides of the inequality. As an illustration, if a > b, then a - c > b - c.

Part a: q is less than or  equal to π.

In this case:

q < π and q = π

Combining both:

q ≤ π

Part b: d is between 2 and 1

Here values 1 and 2 will not be taken for d.

d < 2 and d > 1

Thus,

1 < d < 2

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A group of employees were asked whether they drive or walk to work.

Answers

The probability of being a male and derive from a group of employees were asked whether they drive or walk to work is equal to 0.27.

From the table representing the probabilities of a group of employees.

Employees divided into two groups,

One is male .

Second is female.

While going for work there are two ways .

Derive to walk.

Walk to work.

Different probabilities are as follow,

Male and derive 0.27

Male and walk = 0.27

Female and derive = 0.23

Female and walk = 0.23

The required probability of being a male and derive

= 0.27.

Therefore, the probability of derive and male is equal to 0.27.

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Mrs. lang has x amount of students in each class. Ms. easter has 4 less students in each class. If both teachers have 5 classes, write an expression that
shows how many students are in all of Ms. easter’s classes.

Answers

If Mrs. Lang has x students in each of her 5 classes, then she has a total of 5x students.

Ms. Easter has 4 less students in each of her classes, so she has x - 4 students in each of her 5 classes.

How many students are in all of Ms. Easter's classes?

To find out how many students are in all of Ms. Easter's classes, we can use the expression:

5(x - 4)

This simplifies to:

5x - 20

Therefore, there are 5x - 20 students in all of Ms. Easter's classes.

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Find the value of the following expression when x = 5:

8x divided by 4= ?

Answers

Answer:

10

Step-by-step explanation:

Replace X with 5

The new equation should be 8×5 divided by 4

Then you would multiply 8×5, which is 40

Now, divided 40 by 4, which is 10.

Therefore 8×5 divided by 4 is 10.

SORRY IF THIS DIDN'T MAKE SENSE!

10 because if you plug in 5 as the x, your multiplying 5x8 which gives you 40. 40 divided by 4 gives you 10

How many times does 13 go into 26

Answers

Answer: 2

Step-by-step explanation:

2 times with a remainder of 0

Let A and B be two events such that
P(A) = 1/5 While P(A or B) = 1/2
Let P(B) = P. For what values of P
are A and B independent?​

Answers

We know that if A and B are independent, then the following equation holds true:
P(A and B) = P(A) * P(B)

Let's rewrite P(A or B) as follows:
P(A or B) = P(A) + P(B) - P(A and B)

We can plug in the given values to get:
1/2 = 1/5 + P - P(A and B)

We can simplify this equation to get:
3/10 = P - P(A and B)

Now, we need to find the values of P such that A and B are independent. This means that P(A and B) = P(A) * P(B). Substituting the given values, we get:
P(A) * P(B) = (1/5) * P

And from the above equation, we have:
P(A and B) = P - (3/10)

We can substitute these two equations and solve for P to get:
(1/5) * P = P - (3/10)

Solving for P, we get:
P = 3/4

Therefore, if P = 3/4, then A and B are independent events.

Two random samples are taken from private and public universities (out-of-state tuition) around the nation. The yearly tuition is recorded from each sample and the results can be found below. Test to see if the mean out-of-state tuition for private institutions is statistically significantly higher than public institutions. Assume unequal variances. Use a 1% level of significance and round answers to 4 decimal places.

Private Institutions (Group 1 )

Public Institutions (Group 2)

43,120

25,469

28,190

19,450

34,490

18,347

20,893

28,560

42,984

32,592

34,750

21,871

44,897

24,120

32,198

27,450

18,432

29,100

33,981

21,870

29,498

22,650

31,980

29,143

22,764

25,379

54,190

23,450

37,756

23,871

30,129

28,745

33,980

30,120

47,909

21,190

32,200

21,540

38,120

26,346

Hypotheses:

H0: μ1 = μ2

H1: μ1 > μ2

Identify the test statistic. Round to 4 decimal places.

t =___

___

Answers

Therefore , the solution of the given problem of test statistic comes out to be 4.0085 is the test statistic for this two-sample t-test.

What is test statistics?

The Z-statistic, which confirms the precision of the conventional null hypothesis, is the only strategy that's even remotely close to a Z-test. Consider extrapolating a 2.5 E score in a 2 X y examination with a 0.05 threshold of significance. The p-value connected to this Z-value is 0.0124.

Here,

A two-sample t-test's test statistic is calculated as follows:

The formula for

=> t is (mean1 - mean2) / √((s1 / n1) + (s2 / n2)).

where mean1, mean2 represent the sample means for Group 1 (private institutions) and Group 2 (public institutions), respectively; s12, s22 represent the sample variances for

Groups 1 and 2, and n1, n2 represent the sample sizes for Groups 1 and 2, respectively.

Let's compute the test statistic based on the provided information:

The sample mean (mean1) for private institutions (Group 1) is $43,120.

$1,671,699,489.05 is the sample variance (s12).

Sample (n1) size is 37.

Public Institutions: Sample mean (mean2) = $25,469 (Group 2).

$1,682,553,858.66 is the sample variance (s22).

Number of samples

=>  (n2): 39

=> t = (43,120 - 25,469) / √((1,671,699,489.05 / 37) + (1,682,553,858.66 / 39))

=> t = 4.0085

Therefore, 4.0085 is the test statistic for this two-sample t-test.

To know more about test statistic , visit

https://brainly.com/question/14128303

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A number cube with the numbers 1 through 6 is rolled. What is the probability of the number cube showing a 3 or an odd number?

Answers

There are three odd numbers on a number cube, which are 1, 3, and 5. Since 3 is already an odd number, we don't need to count it twice when finding the probability of rolling an odd number. So, there are a total of four numbers that meet the requirement of being a 3 or an odd number. That means the probability of rolling a 3 or an odd number is 4/6, or 2/3.

Mariana receives a $20 gift card for downloading music and wants to determine how many songs she can purchase. Each downloaded song costs $1.29. If m represents the number of songs downloaded, which inequality represents the given situation? 20 m greater-than-or-equal-to 1.29 20 m less-than-or-equal-to 1.29 1.29 m less-than-or-equal-to 20 1.29 m greater-than-or-equal-to 20​

Answers

Answer:

The relationship between m number of songs downloaded  and the total cost of $20 Mariana receives will be represented by inequality .

Given,

The value of gift card which Mariana have .

The costs of each downloaded song is .

Since m represents the number of songs downloaded and she has in total , so the inequality represents the given situation is,

.

Hence the required inequality is .

For more details on Inequality follow the link:

brainly.com/question/19491153

Step-by-step explanation:

Answer:

The answer should be C

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