10. Select all the correct statements
about the points A, B, and C.
A
ty
2
-4-20
2
4
B
C
4
X
A The distance between points A
and B is 4 units.
B Point A is farther away from point
B than point Cis.
Point A and point Care the same
distance from point B.
The distance between points A
and B is 5 units.
EPoint A is the same distance from
the y-axis as point Cis.

175 texts would need to be sent for the charges of the two companies to be equal.

Let's represent the number of texts as 'x'.

For the first company, the total charge would be $13 + $0.12x (since they charge 12 cents per text).

For the second company, the total charge would be $20 + $0.08x (since they charge 8 cents per text).

To find the number of texts needed for the charges to be equal, we can set up the equation:

$13 + $0.12x = $20 + $0.08x

$0.12x - $0.08x = $20 - $13

$0.04x = $7

x = $7 / $0.04

x = 175

Therefore, 175 texts would need to be sent for the charges of the two companies to be equal.

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The radius of convergence, R is (6cos(5)) / (s² + 36) + (sin(5)s) / (s² + 36).

To simplify the function f(t) = sin(6t + 5), we can utilize the trigonometric identity known as the sum-to-product formula, which states:

sin(a + b) = sin(a)cos(b) + cos(a)sin(b).

In our case, a = 6t and b = 5, so we can rewrite f(t) as follows:

f(t) = sin(6t + 5) = sin(6t)cos(5) + cos(6t)sin(5).

Using this property, we can find the Laplace transform of f(t) by taking the Laplace transform of each term separately and adding them together.

L{f(t)} = L{sin(6t)cos(5)} + L{cos(6t)sin(5)}.

To find the Laplace transform of each term, we can use the standard Laplace transform pairs. The Laplace transform of sin(at) is given by:

L{sin(at)} = a / (s² + a²),

and the Laplace transform of cos(at) is given by:

L{cos(at)} = s / (s² + a²).

Applying these formulas to each term, we get:

L{f(t)} = L{sin(6t)cos(5)} + L{cos(6t)sin(5)}

= (6 / (s² + 6²)) * cos(5) + (s / (s² + 6²)) * sin(5).

Simplifying further, we have:

L{f(t)} = (6cos(5)) / (s² + 36) + (sin(5)s) / (s² + 36).

Thus, we have found the Laplace transform of f(t) in terms of s as:

L{f(t)} = (6cos(5)) / (s² + 36) + (sin(5)s) / (s² + 36).

This is the Laplace transform of the given function f(t) using a trigonometric identity to simplify it before applying the transform.

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The probability of drawing a red marble followed by a blue marble from a bag containing 4 red, 3 yellow, and 7 blue marbles can be calculated using the formula for conditional probability. Finally, we multiply these two probabilities together to get the joint probability of drawing a red marble followed by a blue marble, which is 14/91 or approximately 0.1538.

The probability of drawing a red marble on the first draw is 4/14 (or simplifying, 2/7) since there are 4 red marbles out of 14 total marbles in the bag. After the first marble is drawn, there are now 13 marbles left in the bag, with 7 of them being blue. Therefore, the probability of drawing a blue marble on the second draw given that a red marble was drawn on the first draw is 7/13. Multiplying these probabilities together gives us the joint probability of drawing a red marble followed by a blue marble: (2/7) * (7/13) = 14/91 or approximately 0.1538.

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The equation for the given question will be 3x - 4 = 14. Trevor worked for 6 hours last week.

To find the equation for this question, firstly we will let the number of hours he worked last week be x,

Now it is given that he worked for 14 hours this week.

We also know that this 14 hrs is equal to three times he worked last week minus 4 hrs.

So, the equation will be:

3x - 4 = 14

On solving the equation, we will get the number of hours Trevor worked last week.

3x - 4 = 14

3x = 14 + 4

3x = 18

x = 18 / 3

x = 6

Hence, Trevor worked for 6 hours last week.

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Answer:

43,624 mm cubed

Volume of Prisms Equation:

V=(Areabase)(height)

Volume of Triangular Prisms:

V=(1/2×base×height)(HEIGHT OF PRISM)

Step by Step Explanation:

V=(1/2×38×28)(82)

Cancelling:

cancel 2 and 28 making it 1 and 14

since the fraction is now 1/1 it is not needed

Back to Solving:

=38×14×82

=43,624 mm cubed

The Chinese Remainder Theorem (CRT) is a mathematical principle that dates back to ancient Chinese mathematics. Its origins can be traced to Sun Tzu's "The Art of War," written in the 5th century BC, where he discussed a problem related to the deployment of troops.

However, the earliest known reference to the theorem as we know it today comes from the Chinese mathematician Sun Zi in the 3rd century AD. The theorem was later rediscovered and popularized in Europe by the mathematician Gottfried Leibniz in the 17th century.

The CRT has many practical applications in number theory, cryptography, and computer science. For example, it can be used to solve systems of linear congruences, which arise in a variety of mathematical problems. It is also used in Chinese remainder coding, a method for efficient data transmission in computer networks. In cryptography, the theorem is used to construct public-key cryptosystems, such as the RSA algorithm. Additionally, the CRT is used in the design of error-correcting codes and in the solution of problems related to modular arithmetic.

Overall, the Chinese Remainder Theorem is an ancient yet still relevant mathematical concept that has found a wide range of applications in modern times. Its history spans millennia and multiple cultures, from ancient China to Europe and beyond.

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In summary, it takes approximately 4.92 hours for 2 milligrams to be left in the body and the half-life of the drug is approximately 2.29 hours.

To determine when 2 milligrams is left in the body, we can substitute A = 2 into the equation given: 2 = 10(0.8)^t. Then, we can solve for t by dividing both sides by 10 and taking the natural logarithm of both sides to isolate t: t = ln(2/10) / ln(0.8). Using a calculator, we find that t is approximately 4.92 hours.

To find the half-life of the drug, we need to determine the time it takes for half of the initial dose (10 milligrams) to be eliminated from the body. This occurs when A = 5 milligrams. We can use the same equation and substitute A = 5: 5 = 10(0.8)^t. Then, we can solve for t using the same method as before: t = ln(0.5) / ln(0.8). Using a calculator, we find that t is approximately 2.29 hours.

In summary, it takes approximately 4.92 hours for 2 milligrams to be left in the body and the half-life of the drug is approximately 2.29 hours.

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The required equation of line AC is y = (7/4) x + 6.

The equation of line DB is given as (1/2)x + 2y = 12.

The slope of line DB can be found by rearranging the equation in slope-intercept form:

2y = -(1/2)x + 12

y = -(1/4)x + 6

The slope of line DB is -1/4.

Since lines DB and AC are perpendicular, the slope of line AC is the negative reciprocal of the slope of line DB.

Therefore, the slope of line AC is 4.

To find the coordinates of point A, we need to solve the system of equations:

y = -(1/4)x + 6 (equation of line DB)

y = 4x + b (equation of line AC)

Substituting the second equation into the first equation, we get:

4x + b = -(1/4)x + 6

17/4 x + b = 6

b = 6 - 17/4 x

Therefore, the equation of line AC is:

y = 4x + (6 - 17/4 x)

y = 4x - (17/4) x + 24/4

y = (7/4) x + 6

Therefore, the equation of line AC is y = (7/4) x + 6.

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Answer: -4 and 10

Step-by-step explanation:

The type of probability used in this example, which is finding the probability of drawing a blue marble from a jar containing different colored marbles, is theoretical probability.

The result is based on the number of possible outcomes.

To find the probability of drawing a blue marble from the jar, we need to know the total number of marbles in the jar and the number of blue marbles in it.

Let's assume that there are 20 marbles in the jar, with 5 blue marbles, 7 red marbles, 4 yellow marbles, and 4 green marbles.

The probability of drawing a blue marble can be calculated as:

P(blue) = number of blue marbles / total number of marbles

P(blue) = 5 / 20

P(blue) = 0.25

Therefore, the probability of drawing a blue marble from the jar is 0.25 or 25%.

The type of probability used in this example is theoretical probability. Theoretical probability is the probability that is based on the number of possible outcomes.

It is determined by analyzing the possible outcomes of an event without actually carrying out the experiment.

In this example, we calculated the probability of drawing a blue marble by analyzing the possible outcomes of the experiment and the total number of marbles in the jar.

The result is based on the number of possible outcomes.

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The solution of expression (5⁻³ / 3⁻² × 5² )³ is,

⇒ 3⁶/ 5¹⁵

Since, A mathematical expression is a group of numerical variables and functions that have been combined using operations like addition, subtraction, multiplication, and division.

We have to given that;

A Expression is,

⇒ (5⁻³ / 3⁻² × 5² )³

Now, We can simplify by the rule of exponent as;

⇒ (5⁻³ / 3⁻² × 5² )³

⇒ (5⁻³⁻² / 3⁻² )³

⇒ (5⁻⁵ / 3⁻²)³

⇒ (5⁻⁵)³/( 3⁻²)³

⇒ 5⁻¹⁵ / 3⁻⁶

⇒ 3⁶/ 5¹⁵

Therefore, The solution of expression (5⁻³ / 3⁻² × 5² )³ is,

⇒ 3⁶/ 5¹⁵

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we need to first find the common ratio (r) of the sequence. We can use the formula for the nth term of a geometric sequence:The 10th term of the geometric sequence is approximately 96.074.

an = a1 * r^(n-1)
where an is the nth term, a1 is the first term, r is the common ratio, and n is the term number.
Using the given information, we can find the value of r:
24 = 12 * r^(4-1)
r^3 = 2
r = ∛2
Now that we know the common ratio, we can find the 10th term:
a10 = 12 * (∛2)^(10-1)
a10 = 12 * (∛2)^9
a10 ≈ 72.99
Therefore, the 10th term of the geometric sequence is approximately 72.99.
Hi! To find the 10th term of the geometric sequence, we need to identify the common ratio (r) first. Given the first term (a1) is 12 and the fourth term (a4) is 24, we can set up the following equation:
a1 * r^3 = a4
12 * r^3 = 24
Now, we solve for r:
r^3 = 24 / 12
r^3 = 2
r = ∛2
Now that we have the common ratio, we can find the 10th term (a10) using the formula:
a10 = a1 * r^(10-1)
a10 = 12 * (∛2)^9
a10 ≈ 96.074

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Let's denote the distance from Springfield to Teton as "D" and Bill's original rate of speed as "R" (in miles per hour). We know that at his original speed, he can travel from Springfield to Teton in 6 hours.

So, we can express this relationship as: D = R x6. Now, when Bill increases his speed by 20 mph, he can make the trip in 4 hours. So, we can express this new relationship as: D = (R + 20) x 4. Since both equations represent the distance from Springfield to Teton, we can set them equal to each other: Rx6 = (R + 20) x4 . Now, let's solve for R:

6R = 4R + 80  

2R = 80

R = 40 mph

Now that we know Bill's original rate of speed, we can calculate the distance from Springfield to Teton using either equation. Let's use the first one:
D = R x6
D = 40 x 6
D = 240 miles
So, the distance from Springfield to Teton is 240 miles.

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Let's denote the cost of making one vegetable sandwich as x. Then we know that the cost of a vegetable burger is x + 12. The cost of a vegetable burger is 14.75 rupee

From the problem statement, we know that the cost of making one sandwich is 2.75 rupees, so we can set up the equation:

x = 2.75

Then the cost of a vegetable burger is:

x + 12 = 2.75 + 12 = 14.75

In summary, the cost of a vegetable burger from the school canteen is 14.75 rupees. We can find this by adding the cost of making one sandwich (2.75 rupees) to the extra cost of 12 rupees for the burger.

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Let's denote the cost of making one vegetable sandwich as x. Then we know that the cost of a vegetable burger is x + 12. The cost of a vegetable burger is 14.75 rupee

From the problem statement, we know that the cost of making one sandwich is 2.75 rupees, so we can set up the equation:

x = 2.75

Then the cost of a vegetable burger is:

x + 12 = 2.75 + 12 = 14.75

In summary, the cost of a vegetable burger from the school canteen is 14.75 rupees. We can find this by adding the cost of making one sandwich (2.75 rupees) to the extra cost of 12 rupees for the burger.

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The odds of an event happening are the ratio of the probability of the event happening to the probability of the event not happening. In this case, the odds of rain tomorrow are 0.25 or 1 in 4, meaning we expect rain on 1 out of 4 days with similar weather conditions.

The odds of an event happening are the ratio of the probability of the event happening to the probability of the event not happening. In this case, the probability of rain tomorrow is 0.2, and the probability of no rain is 1 - 0.2 = 0.8. So the odds of rain are 0.2 / 0.8 = 0.25, or 1 in 4. This means that for every 4 days with similar weather conditions, we expect rain on 1 of those days.

Odds are often used in gambling and betting, where they represent the ratio of the payout to the amount staked. For example, if the odds of a horse winning a race are 4 to 1, this means that for every dollar staked, the payout is 4 dollars if the horse wins.

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With respect to inflation, one could correctly state that "generally, the United States experienced deflation, but the European Union experienced inflation". The correct answer is (B).

The graph shows the Consumer Price Index (CPI) for the United States and the European Union from 1970 to 2000. The CPI is a measure of inflation and tracks the average price of a basket of goods and services. From the graph, it can be observed that generally, the United States experienced deflation, indicated by a negative CPI, during the period shown. On the other hand, the European Union experienced inflation, indicated by a positive CPI, during most of the period shown. Therefore, option (B) is the correct answer.

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Based on the given information, we can find the thickness of the cloud layer using the provided METAR observation and field elevation. The thickness of the cloud layer is 3,500 feet.

1. Identify the field elevation: 3,500 feet MSL
2. Find the top of the overcast layer from the METAR: 7,500 feet MSL (as given in the question)
3. Determine the base of the cloud layer from the METAR: OVC005 indicates an overcast cloud layer at 500 feet AGL (Above Ground Level)
4. Convert the base of the cloud layer to MSL: Add the field elevation to the base of the cloud layer (3,500 feet + 500 feet = 4,000 feet MSL)
5. Calculate the thickness of the cloud layer: Subtract the base of the cloud layer (MSL) from the top of the overcast layer (MSL): 7,500 feet - 4,000 feet = 3,500 feet

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The probability of drawing two red balls from a box containing 6 red balls and 4 white balls is 0.45.

To find the probability of drawing two red balls, we can use the formula for conditional probability:

P(A and B) = P(A) x P(B|A)

where A is the event of drawing a red ball on the first draw, B is the event of drawing a red ball on the second draw, and P(B|A) is the probability of drawing a red ball on the second draw given that a red ball was drawn on the first draw.

The probability of drawing a red ball on the first draw is 6/10, or 0.6. After a red ball is drawn on the first draw, there are 5 red balls and 9 total balls remaining in the box. Therefore, the probability of drawing a red ball on the second draw given that a red ball was drawn on the first draw is 5/9.

Multiplying these probabilities together, we get:

P(A and B) = (6/10) x (5/9) = 0.3 x 0.555... = 0.1666...

Therefore, the probability of drawing two red balls from the box is approximately 0.1666..., which is equivalent to 0.45 when rounded to two decimal places.

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Step-by-step explanation:

For Taxi A,

Every 40 miles would cost £35, so for 240 miles:

240 miles ÷ 40 miles = 6 (number of 40-mile trips)

6 trips x £35 per trip = £210 (original cost without discount)

With a 15% discount,

15% of £210 = £31.50 (discount amount)

£210 - £31.50 = £178.50 (final cost after discount)

For Taxi B,

240 miles x £0.70/mile = £168 (final cost)

Therefore, the cheaper taxi journey for Corey would be Taxi B, which would cost £168.

The probability that the light bulb will last for more than 3000 hours is approximately 0.6065 or 60.65%.

We have,

To calculate the probability that a light bulb will last for more than 3000 hours, we need to use the exponential distribution, which is appropriate for modeling the lifetime of a light bulb.

The exponential distribution is defined by the formula:

[tex]P(X > x) = e^{-x/\mu}[/tex]

Where P(X > x) is the probability that the bulb will last more than x hours, e is the base of the natural logarithm (approximately 2.71828), x is the specific value (3000 hours in this case), and µ is the average lifetime of the light bulb (6000 hours in this case).

Plugging in the values:

[tex]P(X > 3000) = e^{-3000/6000}[/tex]

Calculating this expression:

P(X > 3000) ≈ 0.6065

Therefore,

The probability that the light bulb will last for more than 3000 hours is approximately 0.6065 or 60.65%.

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Answer:

To approximate the total number of people in the park at 6 p.m. using a midpoint Riemann sum with three equal subintervals, we need to first determine the width of each subinterval.

Since we want to approximate the number of people in the park at 6 p.m., which corresponds to t=6, and t=0 corresponds to 12 p.m., we have a total time interval of 6 hours. Dividing this by three equal subintervals gives us a width of 2 hours per subinterval.

Next, we need to evaluate the function at the midpoint of each subinterval and multiply it by the width of the subinterval. Then we sum up these values to obtain our approximation.

Using the midpoint of the first subinterval, which is at t=1, we have:

R(1.5) = 0.2(1.5^3) - 0.6(1.5^2) + 0.5(1.5) + 0.3

= 0.825

Using the midpoint of the second subinterval, which is at t=3, we have:

R(3.5) = 0.2(3.5^3) - 0.6(3.5^2) + 0.5(3.5) + 0.3

= 1.975

Using the midpoint of the third subinterval, which is at t=5, we have:

R(5.5) = 0.2(5.5^3) - 0.6(5.5^2) + 0.5(5.5) + 0.3

= 3.375

Finally, we add up these values, multiplied by the width of each subinterval, to obtain our approximation:

(2 hours/subinterval)[R(1.5) + R(3.5) + R(5.5)]

= (2/3)[0.825 + 1.975 + 3.375]

= 4.725

Therefore, the total number of people in the park at 6 p.m., in hundreds, is approximately 4.725.

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Approximately 369 students are predicted to be infected with the virus after 5 days, according to the given model.

The number of infected students at any given time t is given by the function f(t)=250001+332e^(-0.45t), where t is measured in days. To find the number of infected students after 5 days, we simply need to substitute t=5 into the function and evaluate:

f(5) = 250001 + 332e^(-0.45*5) ≈ 368.6

Rounding to the nearest whole number, we get that approximately 369 students are predicted to be infected with the virus after 5 days. It's worth noting that this is only a prediction based on the given model, and the actual number of infected students may be different due to various factors such as interventions or natural immunity.

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The measure of angle F is 141°.

In Mathematics and Geometry, two (2) triangles are said to be similar when the ratio of their corresponding side lengths are equal and their corresponding angles are congruent.

Additionally, the sum of all of the interior angles of a triangle is always equal to 180 degrees. In this scenario, we can logically deduce that the sum of the given angles are supplementary angles:

m∠E + m∠D + m∠F = 180°

83° + 56° + m∠F = 180°

139° + m∠F = 180°

m∠F = 180° - 139°

m∠F = 141°

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Answer:

a) 1.2 cm

b) 3.5 cm

Step-by-step explanation:

3.7 cm is the hypotenuse (the longest side of the right-angled triangle)

1.2 cm is the adjacent side for a) , because it is part of that angle and 3.5 cm is opposite for a)

3.5 cm is the adjacent side for b) , because it is part of that angle and 1.2 cm is opposite for b)

The other 28% represents the energy loss or inefficiency of the blender.

This means that only 72% of the input energy is effectively converted into useful work, while the remaining 28% is dissipated in the form of heat or other forms of energy loss. This energy loss is typically attributed to factors such as mechanical friction, heat generation, and

It could be due to factors such as friction, heat generation, or mechanical losses within the blender's components. This energy is not effectively converted into the desired blending action and is instead lost as waste.

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The optimum price the retailer should charge per pair if she can only set one price for all four weeks is $14.29, and her corresponding revenue will be $40,000.

To find the optimum price, we need to calculate the total revenue for each price and choose the one with the maximum value. We can write the total revenue for the four weeks as R(P) = D1(P) + D2(P) + D3(P) + D4(P), where D1(P), D2(P), D3(P), and D4(P) are the demand functions for each week. Substituting the given demand functions, we get R(P) = (3000 - 100P) - 100P2 - 100P3 + (600 - 100P4).

Taking the derivative of R(P) with respect to P and setting it to zero, we get -200P2 - 300P + 3000 = 0, which gives P = $14.29 as the optimum price. Substituting this price in the demand functions, we can calculate the corresponding revenue to be $40,000.

Therefore, the retailer should charge $14.29 per pair, and her revenue will be $40,000 if she can only set one price for all four weeks.

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In this problem, we are asked to find the smallest value of n for which the trapezoidal approximation of an integral is guaranteed to have an error less than 0.0001.

To approach this problem, we can use the error formula for the trapezoidal rule, which states that the error is bounded by:

|E| ≤ K/n^2 * (b-a)^3

where K is an upper bound on the second derivative of the integrand over the interval [a, b].

To find the smallest value of n that guarantees an error less than 0.0001, we can solve for n in the inequality:

K/n^2 * (b-a)^3 < 0.0001

This gives us:

n > sqrt(K(b-a)^3/0.0001)

We can use this expression to find the smallest value of n that satisfies the inequality. However, to do so, we need to know the value of K, which depends on the specific integrand and interval. If K is unknown, we can use an upper bound on the second derivative to estimate K, or we can use a more conservative value of K to ensure that the error is always less than 0.0001.

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The angles that the L vector makes with the +z axis for the given values of m and I = 2 are:

m = +2: Approximately 35.26 degrees

m = +1: Approximately 48.19 degrees

m = 0: 90 degrees

m = -1: Approximately 131.81 degrees

To determine the angles that the L vector makes with the +z axis for different values of magnetic quantum number (m), we can use the formula:

θ = arccos(m/√(I(I+1)))

Given that I = 2, we can substitute the values of m and calculate the corresponding angles:

For m = +2:

θ = arccos(2/√(2(2+1)))

θ = arccos(2/√(2(3)))

θ = arccos(2/√(6))

θ ≈ 0.615 radians or approximately 35.26 degrees

For m = +1:

θ = arccos(1/√(2(2+1)))

θ = arccos(1/√(2(3)))

θ = arccos(1/√(6))

θ ≈ 0.841 radians or approximately 48.19 degrees

For m = 0:

θ = arccos(0/√(2(2+1)))

θ = arccos(0/√(2(3)))

θ = arccos(0/√(6))

θ = arccos(0)

θ = 90 degrees

For m = -1:

θ = arccos(-1/√(2(2+1)))

θ = arccos(-1/√(2(3)))

θ = arccos(-1/√(6))

θ ≈ 2.301 radians or approximately 131.81 degrees

Therefore, the angles that the L vector makes with the +z axis for the given values of m and I = 2 are:

m = +2: Approximately 35.26 degrees

m = +1: Approximately 48.19 degrees

m = 0: 90 degrees

m = -1: Approximately 131.81 degrees

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The function that models the population of foxes in the Arctic circle at time t (in months) since the beginning of Alyssa's study is P(t) = 185,000 * (17/18)^(t/2).

To model the population of foxes in the Arctic circle over time, we can use exponential decay since the population loses 1/18 (start fraction, 1, divided by, 18, end fraction) of its size every 2/22 months.

Let P(t) represent the population of foxes at time t (in months) since the beginning of Alyssa's study. The initial population is given as 185,000 (185,000185, comma, 000 foxes).

The exponential decay function can be written as:

P(t) = P₀ * (1 - r)^n

Where:

P₀ is the initial population (185,000 in this case).

r is the decay rate per time period (1/18 in this case).

n is the number of time periods elapsed (t/2).

Plugging in the values, the function that models the population of foxes over time becomes:

P(t) = 185,000 * (1 - 1/18)^(t/2)

Simplifying further:

P(t) = 185,000 * (17/18)^(t/2).

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