A circle has a circumference of 153.86153.86153, point, 86 units.
What is the radius of the circle?
Use 3.14 for \piπpi and enter your answer as a decimal.

Using the fact that the triangles are similar, we can see that x = 5.

We can see that the two triangles are similar, because both of them are right triangles and both have the same angle at the vertices S and P.

Then there is a constant of proportionality between all the sides, let's say that the constant of proportionality is k, then we can write two equations:

5k = 15

3k = x + 4

Solving the first equation we get:

k = 15/5 = 3

Then the second gives:

3*3 = x + 4

9 = x + 4

9 - 4 = x

5 = x

That is the value of x.

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Answer:

x=-5

Step-by-step explanation:

(8x+4)/2=6x+12

4x+2=6x+12

-2x=10

x=-5

Answer:

x = -5

Step-by-step explanation:

Given equation:

[tex]\dfrac{1}{2}(8x+4)=6(x+2)[/tex]

Multiply both sides of the equation by 2 to eliminate the fraction on the left side:

[tex]\implies 2\cdot\dfrac{1}{2}(8x+4)=2\cdot6(x+2)[/tex]

[tex]\implies (8x+4)=12(x+2)[/tex]

[tex]\implies 8x+4=12(x+2)[/tex]

Distribute the right side of the equation:

[tex]\implies 8x+4=12\cdot x+12 \cdot 2[/tex]

[tex]\implies 8x+4=12x+24[/tex]

Switch sides:

[tex]\implies 12x+24=8x+4[/tex]

Subtract 8x from both sides of the equation:

[tex]\implies 12x+24-8x=8x+4-8x[/tex]

[tex]\implies 4x+24=4[/tex]

Subtract 24 from both sides of the equation:

[tex]\implies 4x+24-24=4-24[/tex]

[tex]\implies 4x=-20[/tex]

Divide both sides of the equation by 4:

[tex]\implies \dfrac{4x}{4}=\dfrac{-20}{4}[/tex]

[tex]\implies x=-5[/tex]

Therefore, the value of x is -5.

Step-by-step explanation:

We are given the vectors:

u = 4i - j

v = -3i + 2j

To find 2u - 4v, we need to double u and subtract four times v:

2u = 2(4i - j) = 8i - 2j

4v = 4(-3i + 2j) = -12i + 8j

So, 2u - 4v = (8i - 2j) - (-12i + 8j) = 20i - 10j.

Therefore, 2u - 4v = 20i - 10j.

‍‍‍Answer : -0.65

:)

Answer:

[tex]\huge\boxed{\sf 18^{-3}}[/tex]

Step-by-step explanation:

[tex]\displaystyle \frac{18^4}{18^7}[/tex]

So, the expression becomes:

= [tex]18 ^{4-7}[/tex]

= [tex]18^{-3}[/tex]

[tex]\rule[225]{225}{2}[/tex]

Answer:

Since the translation has shifted the point (8,1) to (9,2), we can determine the displacement vector between these two points as:

(9,2) - (8,1) = (1,1)

This vector represents the amount and direction of the translation. To find the image of the point (5,5) under the same translation, we need to add this vector to the coordinates of the point:

(5,5) + (1,1) = (6,6)

Therefore, the image of the point (5,5) under the same translation is (6,6).

After answering the presented question, we can conclude that Therefore, the interest paid would be $1504.

In mathematics, interest is the amount of money earned or payable on an original investment or loan. You can use either simple or compound interest. Simple interest is calculated as a percentage of the initial amount, whereas compound interest is calculated on the principal amount plus any previously earned interest. If you invest $100 at a 5% annual simple interest rate, you will get $5 in interest every year for three years, for a total of $15.

To calculate the amount of interest paid on a simple interest loan, we use the following formula:

Interest = Principal x Rate x Time

where:

Principal is the amount borrowed

Rate is the annual interest rate as a decimal

Time is the length of the loan in years

In this case, we have:

Principal = $4700

Rate = 0.08 (8% expressed as a decimal)

Time = 4 years

So, the interest paid on this loan would be:

Interest = $4700 x 0.08 x 4

Interest = $1504

Therefore, the amount of interest paid would be $1504.

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The pοlynοmial that is a difference οf squares is: x² - 36 factοred as: (x + 6)(x - 6)

A pοlynοmial is a mathematical expressiοn that cοnsists οf οne οr mοre terms, where each term is a prοduct οf a cοefficient and οne οr mοre variables raised tο nοn-negative integer pοwers. Pοlynοmials can be used tο mοdel variοus real-wοrld phenοmena and are fundamental tο many areas οf mathematics and science.

The pοlynοmial that is a difference οf squares is: x² - 36

This pοlynοmial can be factοred as: (x + 6)(x - 6)

Tο see why this wοrks, we can write x² - 36 as (x)² - (6)², which is a difference οf squares. Then, we can use the fοrmula fοr the difference οf squares, which states that a² - b² = (a + b)(a - b), tο factοr x² - 36 as (x + 6)(x - 6).

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So the base of the triangle is 60 feet.

What Does a Triangle's Area Mean?

The total area that is bounded by a triangle's three sides is referred to as the triangle's area. In essence, it is equal to 1/2 of the height times the base, or A = 1/2 b h. So, we need to know the triangular polygon's base (b) and height (h) in order to calculate its area. Any triangle kinds, including scalene, isosceles, and equilateral, can use it. It should be observed that the triangle's base and height are parallel to one another. Square units are used to measure the area unit (m2, cm2).

Let’s call the height of the triangle “h” and the base “b”. We know that the area of the triangle is 450 square feet. We also know that the base is 4 times the height. So we can write:

b = 4h

We can use this information to write an equation for the area of the triangle:

(1/2)b×h = 450

Substituting b = 4h, we get:

(1/2)(4h)(h) = 450

Simplifying this equation gives us:

2h²= 450

Dividing both sides by 2 gives us:

h² = 225

Taking the square root of both sides gives us:

h = 15

So the height of the triangle is 15 feet. We can use this to find the base:

b = 4h = 4(15) = 60

So the base of the triangle is 60 feet.

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Given that radius (r) = 7 cm.

We know that the circumference of the circle = [tex]2\pi r[/tex]

So, the circumference of the semicircle = [tex]\frac{1}{2} \times2\pi r=\pi r[/tex]

[tex]=\dfrac{22}{7} \times7 \ \text{cm}[/tex]

[tex]=22 \ \text{cm}[/tex]

So, the diameter of the circle = [tex]2r=2\times7 \ \text{cm}=14 \ \text{cm}[/tex]

Thus, the perimeter of each semicircular dis = [tex]22 \ \text{cm}+14 \ \text{cm}=36 \ \text{cm}[/tex].

Answer:

18 km

Step-by-step explanation:

43.2/2.4 = 18

Helping in the name of Jesus.

The transaction for the purchase of the commercial vehicle by Stear Corp. can be classified as a simple journal entry.

Accounting uses journal entries to systematically and efficiently record financial activities. For the purpose of keeping precise financial records and creating financial statements, they offer a chronological record of all financial activities. Diary entries serve as a trail of evidence for audits and aid in monitoring and assessing a company's financial performance. In order to guarantee that the financial statements correctly represent the financial condition and performance of the company, journal entries are also used for modifying entries at the conclusion of an accounting period.

The transaction for the purchase of the commercial vehicle by Stear Corp. can be classified as a simple journal entry.

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Answer:

B.

compound journal entry

Step-by-step explanation:

The equation for given coordinates are A) p(x) = |x - 9| C), r(x) = |x + 9| O) ,t(x) = |x| - 9

What are coordinates ?

Coordinates are sets of numbers used to locate points on a grid or map. In mathematics, the most common type of coordinates are Cartesian coordinates, which consist of an ordered pair of numbers (x, y). The x-coordinate represents the horizontal position of the point on the x-axis, and the y-coordinate represents the vertical position of the point on the y-axis.

For example, in a two-dimensional coordinate system, the point (2, 3) has an x-coordinate of 2 and a y-coordinate of 3. This means that the point is located 2 units to the right and 3 units up from the origin, which is the point (0, 0) where the x-axis and the y-axis intersect.

According to the question :

We can determine which equation corresponds to each set of vertex coordinates by observing the general form of the equation of an absolute value function and how the vertex coordinates affect it. The general form of an absolute value function is:

f(x) = |x - h| + k

where (h, k) represents the vertex coordinates of the graph.

The vertex coordinates are (-9, 0). The value of h is -9, which means the equation involves a shift to the right by 9 units. The absolute value of x is the distance from x to 0, so when x is less than -9, the absolute value of x - (-9) will be positive, and when x is greater than -9, the absolute value of x - (-9) will be negative. Therefore, the equation with vertex coordinates (-9, 0) is:

C) r(x) = |x + 9|

The vertex coordinates are (9, 0). The value of h is 9, which means the equation involves a shift to the left by 9 units. The absolute value of x is the distance from x to 0, so when x is less than 9, the absolute value of x - 9 will be negative, and when x is greater than 9, the absolute value of x - 9 will be positive. Therefore, the equation with vertex coordinates (9, 0) is:

A) p(x) = |x - 9|

The vertex coordinates are (0, -9). The value of k is -9, which means the equation involves a vertical shift downwards by 9 units. The absolute value of x is the distance from x to 0, so the equation with vertex coordinates (0, -9) is:

O) t(x) = |x| - 9

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The circumference of the bagel is 4.71 inches

The circumference is the distance around the edge of a circle. It is the length of the boundary that encloses the circle.

The bagel’s circumference can be calculated using the formula:

C = 2πr

where r is the radius of the bagel.

Substituting r = 0.75 inches in the formula, we have:

C = 2 * 22/7 * 0.75

C = 4.71 inches

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Complete Question

If the radius of the bagel's hole is 0.75 inches, what is the hole's circumference, in inches?

Answer: 30

Step-by-step explanation: 15x2=30 6x5=30 so: the least common multiple is:30

know the meaning of least multiple

Dividing the profit ratio after two years into equal portions for A and B is 9:2.

Ratios frequently appear in daily life and, by putting numbers into perspective, help to systematize many of our interactions. By making quantities easier to comprehend, ratios enable us to measure as well as express quantities.

One of the most typical ways to write a ratio with a colon as a the whole comparison, like in the example above with the children and adults. Ratios can also be expressed as a fraction because they are straightforward division problems.

Given data:

Investments by A = 90,000

Investments by B = 20,000

ratio of profit after 2 years:

profit of A /  profit of B = Investments by A / Investments by B

profit of A /  profit of B =  90,000 / 20,000

profit of A /  profit of B = 9/2

Thus, dividing the profit after two years into equal portions for A and B is 9:2.

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Complete question:

A and B started a business investing Rs. 90,000 and Rs 20,000

respectively. In what ratio the profit earned after 2 years be divided

between A and B respectively?

Answer:

the monthly car payment is $722.91

Step-by-step explanation:

To find the monthly car payment, we need to use the formula for the monthly payment of a loan:

P = (Pr(1+r)^n)/((1+r)^n - 1)

where P is the monthly payment, P is the loan principal (the total cost of the car including tax and license), r is the monthly interest rate, and n is the total number of payments (the number of years multiplied by 12 months per year).

First, we need to convert the annual interest rate of 4.4% to a monthly interest rate. We divide 4.4% by 12 to get:

r = 0.044/12 = 0.0036667

Next, we need to calculate the total number of payments. Since the loan is for 4 years and there are 12 months in a year, the total number of payments is:

n = 4 years x 12 months/year = 48

Now we can substitute the values into the formula:

P = (31795.66(0.0036667)(1+0.0036667)^48)/((1+0.0036667)^48 - 1)

Using a calculator, we get:

P = $722.91 (rounded to the nearest cent)

Therefore, the monthly car payment is $722.91.

Answer:

Step-by-step explanation:

Given system of equation to us is ,

3a + 2c = 38.65

1a + 2c = 22.75

Here the given system of equation are linear equations in two variables. We can use various methods to solve them like substitution method, elimination method, etc . Here i will make use of elimination method. For that ;

Subtract both the equations , that would result to ;

3a + 2c - ( 1a + 2c ) = 38.65 - 22.75

3a + 2c - 1a - 2c = 15.9

2a = 15.9

a = 15.9/2

a = 7.95

To find out the value of c , plug in a = 7.95 in any of the two equations, as ;

a + 2c = 22.75

2c = 22.75 - 7.95

2c = 14.8

c = 14.8/2

c = 7.4

Hence the value of a is 7.95 and that of c is 7.4 .

Answer:

We know that:

sin^2a + cos^2a = 1 (1)

Also, we have:

cos a + sin a = 1/2

Squaring both sides of the above equation, we get:

cos^2a + 2cos a sin a + sin^2a = 1/4

Using equation (1), we can simplify this to:

1 + 2cos a sin a = 1/4

Subtracting 1 from both sides, we get:

2cos a sin a = -3/4

Squaring both sides, we get:

4cos^2a sin^2a = 9/16

Using the identity:

sin^2a = 1 - cos^2a

We can rewrite the above equation as:

4cos^2a (1 - cos^2a) = 9/16

Expanding and rearranging, we get:

4cos^4a - 4cos^2a + 9/16 = 0

Multiplying both sides by 16, we get:

64cos^4a - 64cos^2a + 9 = 0

Letting x = cos^2a, we can rewrite this as a quadratic equation:

64x^2 - 64x + 9 = 0

Solving for x using the quadratic formula, we get:

x = (64 ± √16384)/128

x = 1/2 or x = 9/64

Since 0 < a < 2π, we know that cos a is positive, so we can take the positive square root:

cos a = √(1/2) = 1/√2

Substituting this into the equation sin a + cos a = 1/2, we get:

sin a = 1/2 - cos a = 1/2 - 1/√2 = (√2 - 1)/2

Therefore:

sin^2a - cos^2a = ((√2 - 1)/2)^2 - (1/√2)^2

= (3 - 2√2)/4

Therefore, sin^2a - cos^2a = (3 - 2√2)/4.

Answer:-14

Step-by-step explanation:

Answer:

Step-by-step explanation:

The roots of this discriminant x=0 or x=-14

Using trigonometric ratio and trigonometric identities, the angle of elevation is 19.5 degrees and [tex]\cos(\arcsin(-\sqrt{2}/2)) = \frac{\sqrt{2}}{2}[/tex]

To determine the angle of elevation, we will need to apply trigonometric ratio here;

Length of cable = hypothenuse = 300ft

Distance of parasailer to surface = opposite = 100 ft

Since we have the value of opposite side and hypothenuse, we can use the sine ratio;

sinθ = opposite / hypothenuse

sinθ = 100/300

sinθ = 1/3

θ = sin⁻¹(1/3)

θ = 19.5°

2. Let;

[tex]\theta = \arcsin(-\sqrt{2}/2)$. Then, $\sin\theta = -\sqrt{2}/2[/tex]

Since θ is in the fourth quadrant, cos θ is positive. To find cos θ, we can use the trigonometric identity

[tex]\sin^2\theta + \cos^2\theta = 1[/tex]

\begin{align*}

[tex]\cos^2\theta &= 1 - \sin^2\theta \\&= 1 - \left(-\frac{\sqrt{2}}{2}\right)^2 \\&= 1 - \frac{1}{2} \\&= \frac{1}{2}[/tex]

Taking the positive square root, we get:

[tex]\cos\theta = \sqrt{\frac{1}{2}} = \frac{\sqrt{2}}{2}[/tex]

Therefore,

[tex]\cos(\arcsin(-\sqrt{2}/2)) = \frac{\sqrt{2}}{2}[/tex]

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Answer:

it's D

Step-by-step explanation:

hope this helps lol.....

Answer:

the width of the rectangle is 11 cm, the length is 13 cm, and the area is 143 cm^2.

Step-by-step explanation:

Let's assume that the width of the rectangle is "x" cm.

According to the problem, the length of the rectangle is 2 more than its width, which means:

Length = x + 2

The formula for the perimeter of a rectangle is:

Perimeter = 2(length + width)

Substituting the given values, we get:

48 = 2(x + 2 + x)

48 = 2(2x + 2)

48 = 4x + 4

44 = 4x

x = 11

So, the width of the rectangle is 11 cm and the length is:

Length = 11 + 2 = 13 cm

The formula for the area of a rectangle is:

Area = length x width

Substituting the given values, we get:

Area = 11 x 13 = 143 cm^2

Therefore, the width of the rectangle is 11 cm, the length is 13 cm, and the area is 143 cm^2.

Answer:

Step-by-step explanation:

Length of rectangle is 2 more than its Width.

Let width be x and length be x +2.

If Perimeter is 48 cm .

=> 48 = 2(x + 2 + x)

=> 48 = 2(2x +2)

=> 48 = 4x + 4

=> 48 - 4 = 4x

=> 44 = 4x

=> x = 44/4

=> x = 11 cm

Hence,

Length of rectangle = x +2 = 13 cm

Breadth of rectangle = 11 cm

Now,

=> 11 × 13

=> 143 cm²

A. To solve the quadratic equation 2x² - 17x + 8 = 0, we can use the factoring method. We need to find two numbers whose product is 16 (the product of the coefficients of x² and the constant term) and whose sum is -17 (the coefficient of x). These two numbers are -1 and -16, so we can rewrite the equation as:

2x² - 17x + 8 = (2x - 1)(x - 8) = 0

Setting each factor equal to zero, we get:

2x - 1 = 0 or x - 8 = 0

Solving for x, we get:

2x = 1 or x = 8

x = 1/2 or x = 8

Therefore, the roots of the quadratic equation are x = 1/2 and x = 8.

B. To solve the quadratic equation x² - 4x - 12 = 0, we can use the factoring method. We need to find two numbers whose product is -12 (the product of the coefficients of x² and the constant term) and whose sum is -4 (the coefficient of x). These two numbers are -6 and 2, so we can rewrite the equation as:

x² - 4x - 12 = (x - 6)(x + 2) = 0

Setting each factor equal to zero, we get:

x - 6 = 0 or x + 2 = 0

Solving for x, we get:

x = 6 or x = -2

Therefore, the roots of the quadratic equation are x = 6 and x = -2.

The correct answer is the bar graph with bars centered on the values 0.00, 0.33, 0.67, and 1.00, which corresponds to option (d).

To find the sampling distribution of the sample proportion of males for all samples of size n = 3, we need to consider all possible samples of size 3 that can be taken from the population of 6 friends. There are a total of 20 such samples, which are:

Andre, Bella, Carlos

Andre, Bella, Desirae

Andre, Bella, Edgar

Andre, Bella, Frances

Andre, Carlos, Desirae

Andre, Carlos, Edgar

Andre, Carlos, Frances

Andre, Desirae, Edgar

Andre, Desirae, Frances

Andre, Edgar, Frances

Bella, Carlos, Desirae

Bella, Carlos, Edgar

Bella, Carlos, Frances

Bella, Desirae, Edgar

Bella, Desirae, Frances

Bella, Edgar, Frances

Carlos, Desirae, Edgar

Carlos, Desirae, Frances

Carlos, Edgar, Frances

Desirae, Edgar, Frances

For each sample, we can compute the sample proportion of males by counting the number of males in the sample and dividing by 3. We can then list all the sample proportions of males and count how many times each value appears. The resulting distribution is the sampling distribution of the sample proportion of males.

To make it easier to visualize the distribution, we can create a frequency table and a bar graph. The frequency table lists all the distinct values of the sample proportion of males and their frequencies, while the bar graph shows the frequencies as bars of different heights.

The sample proportion of males' Frequency

0.00 - 1

0.33 - 8

0.67 - 8

1.00 - 3

    Frequency      

0     1     8     8     3

0.00  0.33  0.67  1.00

The sample proportion of males

The x-axis represents the possible values of the sample proportion of males, and the y-axis represents the frequency of each value. The bars are centered on the values 0.00, 0.33, 0.67, and 1.00, and their heights correspond to the frequencies of these values in the sampling distribution.

Therefore, the correct answer is the bar graph with bars centered on the values 0.00, 0.33, 0.67, and 1.00, which corresponds to option (d).

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For pyramid, ABCDE with square base ABCD, of side length 10, the total surface area of frustum ABCDMNPQ of pyramid, is equals to the 245 square units.

We have a pyramid, ABCDE, with base abcd, is a square with side length 10.

Total surface area of pyramid= 260

Let m,n,p and q are mid points of AE, BE, CE and DE, respectively. We have to determine total area of frustum ABCDMNPQ. See the above figure, we get [tex]\frac{ \bar{EM }}{\bar {EA }} = \frac{ \bar{EN }}{\bar {EB }} = \frac{ \bar{EP}}{\bar {EC }} = \frac{ \bar{EQ}}{\bar {ED }} =\frac{1}{2} [/tex] MQ

here, k = 1/2 or 1/k² = 1/4

MN = NP = PQ = MQ = k( 10 ) = 5

Now, Area of frustum, ABCDMNPQ = Area of ABMN + Area of BDMQ + Area of CDPQ + Area of BNPC + Area of square MPNQ + Area of square ABCD. There are four trapezoid and two squares.

Now, Area of ABMN + Area of BDMQ + Area of CDPQ + Area of BNPC

= ( 1 - k²) ( 260 - 100)

= 120

Total surface area of frustum ABCDMNPQ = 120 + 100 + 25 = 245. Hence, required area is 245 square units.

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Complete question:

The above figure completes the question. let ABCDE be a pyramid, where the base ABCD is a square of side length 10. the total surface area of pyramid abcde (including all five faces) is 260. let M,N,P and Q be the midpoints of $\overline{AE}$, $\overline{B}$, $\overline{CE}$, and $\overline{DE}$, respectively. find the total surface area of frustum ABCDMNPQ.

Therefore , the solution of the given problem of probability comes out to be , the occurrence that is UNLIKELY is P (failing math).

Each of the procedure's criteria-based methods have as their main objective determining the likelihood that a statement is accurate or that an event will take place. Any number from zero to one, where 0 typically represents percentage and 1 typically reflects degree of certainty, can be used to symbolize chance. A probability illustration shows the likelihood that a particular occurrence will occur.

Here,

From most likely to least likely, the following occurrences are most likely to occur:

=> P(Honor score) = 100% Spanish class = 60%

=> P(left-handedness) = 33% P(math failure) = 0%

Because there is no chance of it happening, the occurrence that is UNLIKELY is P (failing math).

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Answer: Circumference - 37.68

Area of the circle - 113.04

Step-by-step explanation:

We have to remember that the formula for the circumference of a circle is Pi X Diameter, and since the diameter is 2 times the radius, we would have 3.14x12, which would be 37.68. For the area, we would do Pi times R squared, meaning 6x6=36, 36x3.14=113.04. I hope you understand this.

There is a significant difference in stress levels between dog owners and non-dog owners.

Statistics is a branch of mathematics that deals with the collection, analysis, interpretation, presentation, and organization of data. It involves techniques for designing experiments, surveys, and observational studies to gather data, as well as methods for summarizing, visualizing, and drawing conclusions from the data.

Step 1: State the null and alternative hypotheses:

Null hypothesis: There is no significant difference in stress levels between dog owners and non-dog owners.

Alternative hypothesis: There is a significant difference in stress levels between dog owners and non-dog owners.

Step 2: Determine the level of significance (alpha) and the degrees of freedom :

Alpha = 0.01 (given in the problem)

Degrees of freedom = n₁ + n₂ - 2, where n1 and n2 are the sample sizes of the two groups.

n₁ = 20 (from the table)

n₂ = 15 (from the table)

Degrees of freedom = 20 + 15 - 2 = 33

Step 3: Calculate the sample means and standard deviations:

For dog owners:

Sample mean (x₁) = 28.25

Sample standard deviation (s₁) = 9.24

For non-dog owners:

Sample mean (x₂) = 36.20

Sample standard deviation (s₂) = 7.96

Step 4: Calculate the t-statistic:

t = (x₁ - x₂) / √[(s₁²/n₁) + (s₂²/n₂)]

t = (28.25 - 36.20) / √[(9.24²/20) + (7.96²/15)]

t = -2.75

Step 5: Determine the critical t-value:

Using a t-table with 33 degrees of freedom and a one-tailed alpha of 0.01, the critical t-value is -2.449.

Step 6: Make a decision:

Since the calculated t-value (-2.75) is less than the critical t-value (-2.449), we reject the null hypothesis.

Therefore, we can conclude that there is a significant difference in stress levels between dog owners and non-dog owners.

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