Find the length of ST.

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.

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.

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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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(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.

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.

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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The value of x when the secant intersect is 5.

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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Keara has climbed up to 41 feet in the tree.

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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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.

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.

The equation of the third linear function is:

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

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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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!

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

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.

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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The quadratic equation written in vertex form is:

y = (x + 1)^2 - 9

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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According to the information, the probability of missing the first penalty but scoring the second penalty is 3/16.

The probability of missing the first penalty is 1/4, and the probability of scoring the second penalty given that she missed the first one is 3/4. Therefore, the probability of missing the first penalty but scoring the second penalty is:

(1/4) * (3/4) = 3/16

So the probability is 3/16, or 0.1875 as a decimal, or 18.75% as a percentage, in its simplest form.

According to the above, the three diagrams would be like this:

      ------- Score (3/4)

     |

------|

     |------- Score (3/4)

     |

     ------- Miss (1/4)

             |

             ------- Score (3/4)

             |

             ------- Miss (1/4)

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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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Answer: 2

Step-by-step explanation:

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

6. The integral converges and its value is 0.

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

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.

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.

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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Answer: c=60

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

15/c= 6/24

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.

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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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!

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.

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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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.

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

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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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]

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:

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 .

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Step-by-step explanation:

Answer:

The answer should be C