you are given a 100-meter-long rope, and you need to measure a length of 10 meters without any measuring devices. you can only fold or manipulate the rope, but you cannot cut or mark it. how can you measure 10 meters accurately?

The measure of central tendency that will change the most in the data set is: Mean

The mean is defined as the average value of a distribution which is obtained by dividing the sum of the values by the frequency.

The median is defined as the number at the middle of the distribution. It is obtained by arranging the values in ascending order and picking the mid value.

The mode is defined as the value which has the most number of occurrences in the distribution.

The set of numbers can be arranged as:

25, 29, 32, 32, 52

The mean = 34

Mode = 32

Median = 32

If we replace 25 with 80, we will have:

Mean = 45

Mode = 32

Median = 32

Thus, the mean will change the most

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The area of the parallelogram is 30 square inch.

A parallelogram is simply a quadrilateral with two pairs of parallel sides.

The area of parallelogram is expressed as:

A = base × height

From the diagram:

Plug the given values into the above equation and solve for area.

Area = base × height

Area = 10 in × 3 in

Area = 30 in²

Therefore, the area is 30 in².

Option D) 30 in² is the correct answer.

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The difference between two observation concerning the values are  68% of observation lie in between 468 and 492 , then 95% of observation lie in 456 and 504.

The normal distribution is considered a continuous probability distribution that has a  different bell-shaped probability density function. Therefore, the mean of a normal distribution is the center of its symmetric bell-shaped curve.


Therefore it is given ,  a normal distribution with mean of  480 and standard deviation 12
Lower limit = Mean - Standard deviation = 480 - 12 = 468

Upper limit = Mean + Standard deviation = 480 + 12 = 492

Following the same procedure then the results to evaluate for 95%
The difference between two observation concerning the values are  68% of observation lie in between 468 and 492 , whereas 95% of observation lie in 456 and 504.

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(a) Yes, we have enough information to compute Probability P(A or B).

(b) If we know P(A) and P(B), we have enough information to compute P(A or B).

(a) The probability of the union of two events (A or B) is given by the formula P(A or B) = P(A) + P(B) - P(A and B)

We know P(A) and P(B), but we don't know P(A and B) - the probability that both events occur simultaneously. Therefore, we cannot compute P(A or B) with certainty unless we are given additional information about the relationship between A and B.

(b) If we know that events A and B are mutually exclusive, then we have enough information to compute P(A or B). Mutually exclusive events are events that cannot occur simultaneously, which means that P(A and B) = 0.

In this case, the formula for the probability of the union simplifies to:

P(A or B) = P(A) + P(B)

Since we know P(A) and P(B), we can simply add them to obtain P(A or B). Therefore, in this case, we have enough information to compute P(A or B).

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Before proving that a shape is a rectangle or a rhombus, you must first prove that it is a parallelogram by showing that its opposite sides are parallel and then use specific properties to prove its rectangle or rhombus nature.

Before proving that a given shape is a rectangle or a rhombus, you must first prove that it is a parallelogram. A parallelogram is a quadrilateral with opposite sides parallel to each other. To prove that a shape is a parallelogram, you can show that its opposite sides are parallel by using the slope formula or by showing that the opposite sides have the same length and are parallel to each other.

Once you have established that a shape is a parallelogram, you can then proceed to prove whether it is also a rectangle or a rhombus. To prove that a shape is a rectangle, you must show that it is a parallelogram with four right angles. To prove that a shape is a rhombus, you must show that it is a parallelogram with four sides of equal length.

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To prove that a quadrilateral is a rectangle or a rhombus, you must first establish some key properties. For a rectangle, you need to prove that it has four right angles and opposite sides are parallel. For a rhombus, you must demonstrate that all four sides are of equal length and opposite sides are parallel.

Before proving that something is a rectangle or a rhombus, you must first prove that it is a parallelogram. This means showing that opposite sides are parallel and congruent in length. Once this is established, you can then prove additional properties to determine whether the shape is a rectangle (where all angles are 90 degrees) or a rhombus (where all sides are congruent).
To prove that a quadrilateral is a rectangle or a rhombus, you must first establish some key properties. For a rectangle, you need to prove that it has four right angles and opposite sides are parallel. For a rhombus, you must demonstrate that all four sides are of equal length and that opposite sides are parallel. Once these properties are verified, you can confidently classify the shape as a rectangle or a rhombus.

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The towns Alphaville and Betaville are 2.067 km apart.

Let's d = distance between Alphaville and Betaville

Since the cyclist is traveling at a constant speed of 14 km/h, we can use the formula:

distance = speed x time

Let x =  time it takes for the cyclist to travel from Alphaville to the point where she passes the jogger.

Then, the time it takes for the walker to travel from Betaville to the point where she is passed by the cyclist is (x + 4/60) hours (since 4 minutes is 4/60 hours).

Finally, we can use the formula:

distance = speed x time

to set up two equations, one for the cyclist and jogger, and one for the cyclist and walker:

14x = 10(x + 4/60) ------- (1)

14x - 6(x + 4/60) = d ---- (2)

Simplifying Equation 1:

14x = 10(x + 4/60)

14x = 10x + 2/3

4x = 2/3

x = 1/6.

Substituting x = 1/6 into Equation 2:

14(1/6) - 6(1/6 + 4/60) = d

7/3 - 2/5 = d

d = 31/15 km or approximately 2.067 km

Therefore, the towns Alphaville and Betaville are approximately 2.067 km apart.

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If your friend in college decides to purchase textbooks using his credit card. The number of  year his credit card balance be $1360 is 8 years.

We can use the continuous compounding formula to solve this problem:

A = Pe^(rt)

where A is the ending balance, P is the initial balance, e is Euler's number (approximately 2.71828), r is the interest rate, and t is the time in years.

In this case, we want to solve for t when P = 500 and A = 1360. The interest rate is given as 12.5% compounded continuously, which means r = 0.125. Substituting these values into the formula, we get:

1360 = 500e^(0.125t)

Dividing both sides by 500, we get:

e^(0.125t) = 2.72

Taking the natural logarithm of both sides, we get:

0.125t = ln(2.72)

Solving for t, we get:

t = ln(2.72)/0.125 ≈ 8

Rounding to the nearest year, we get that it will take 8 years for the credit card balance to reach $1360 without making any payments.

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Thus, the obtained area of sector for the given circle is found as 43.96 in².

Two radii that meet at the centre to form a sector define a circle. The sector is the portion of the circle created by these two radii. Knowing a circle's central angle assessment and radius measurement are both crucial for solving circle-related difficulties.

The curved portion that runs along the circle's perimeter and joins the ends of a two radii that make up a sector is known as the sector arc.

given data:

Formula for the area of sector:

area of sector = Ф /360 * (πr²)

area of sector = 140/360 * (3.14 *6²)

area of sector = 7/18 * 3.14 *36

area of sector = 43.96 in²

Thus, the obtained area of sector for the given circle is found as 43.96 in².

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Option D is correct, the area of given parallelogram is 30 square inches

Parallelogram is a simple quadrilateral with two pairs of parallel sides.

The opposite or facing sides of a parallelogram are of equal length and the opposite angles of a parallelogram are of equal measure.

Area of parallelogram =bh

=10×3

=30 square inches

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The electrician needs approximately 296.26 feet of wire.

The links between triangle's sides and angles are studied in the mathematic discipline known as trigonometry. It entails an examination of triangle's angles, lengths, and areas as well as their angles' mathematical properties (such as sine, cosine, and tangent).

The situation described can be modeled as a right triangle, where the wire from the electric box to the pole is the hypotenuse, and the angle of elevation is one of the acute angles. Let x be the length of the wire needed in feet.

Using trigonometry, we can write:

sin(17°) = opposite / hypotenuse

where the opposite side is the height of the connection on the pole above the ground. We can solve for the hypotenuse (the length of wire needed) as follows:

hypotenuse = opposite / sin(17°)

To find the opposite side, we can use the fact that the angle of elevation is 17° and the distance from the pole to the point on the ground directly beneath the connection is 85 feet. This distance is the adjacent side of the triangle, so we can write:

tan(17°) = opposite / 85

Solving for the opposite side, we get:

opposite = 85 tan(17°)

Substituting this into the formula for the hypotenuse, we get:

hypotenuse = (85 tan(17°)) / sin(17°)

hypotenuse ≈ 296.26 feet

Therefore, the electrician needs approximately 296.26 feet of wire.

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BigDecimal gives you control over how values are rounded. By default option(d) all calculations are exact and rounding occurs.

BigDecimal is a Java class that provides a way to perform exact calculations on decimal numbers with a high degree of precision and control over rounding. Unlike primitive data types, such as double and float, which are prone to rounding errors due to their binary representation, BigDecimal stores numbers using a base-10 representation, allowing for more precise calculations.

Additionally, it allows the programmer to specify rounding rules, such as rounding up or down to a certain number of decimal places, ensuring that the results of calculations are accurate and consistent. This makes BigDecimal a useful tool for applications that require precise numerical calculations, such as financial and scientific applications.

Therefore, the correct option is (d) all calculations are exact and rounding occurs

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If in the mail, she received 14 envelopes, and each envelope included $2. 70,Sarah received a total of $37.80 in the mail.

Sarah received a total of 14 envelopes, and each envelope had $2.70. To find out how much money she received in total, we can multiply the number of envelopes by the amount of money in each envelope:

Total money = 14 × $2.70

We can simplify the expression by first multiplying the whole number, 14, by the tenths value of $2.70, which is $0.70:

Total money = $37.80

This amount of money is the sum of all the money in the 14 envelopes she received. It can be useful to double-check the answer by adding up the amounts in each envelope manually, but in this case, it is not necessary since we have already calculated the total.

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23. The value for x in triangle is 11.14

24. The value for x in the triangle is 18.3

25. The value for x = 30.4

27 The value for x = 63.413 degrees

23

Cos θ= adj/ hyp

cos 42= x/15

x = 15 cos 42

x = 11.14

24

tan θ= opp/ adj

tan 31= 11/ x

x(tan 31)= 11

x = 11/tan 31

x = 18.3

25

cos θ= adj/ hyp

cos 18= 29/x

x(cos 18) = 29

x = 29/ cos 18

x = 30.4

27

sin x = opp/ hyp

sin x = 17/19

sin x = 0.8947

x = 63.413 degrees

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The correct answer is: The IQR of 13 is the most accurate to use, since the data is skewed. (Option B).

The correct answer is: Together, Streetcar and Cable Car are the preferred transportation for 168 residents. (Option A).

The correct answer is: The IQR is the best measure of variability, and it equals 6.

1. Since the data is skewed, it is not appropriate to use the range as a measure of variability. The range is sensitive to extreme values and can be misleading in skewed data. The interquartile range (IQR) is a better measure of variability for skewed data since it is not affected by extreme values. Therefore, the charity should use the IQR of 13 as the measure of variability for this data.

2. From the circle graph, we can draw the following conclusion:

Together, Streetcar and Cable Car are the preferred transportation for 27% + 15% = 42% of the residents. 42% of 400 is 168 residents.

3. The line plot shows that the data is discrete and not continuous. Also, the data is not normally distributed and is skewed. Therefore, the range is not an appropriate measure of variability. The interquartile range (IQR) is a better measure of variability for skewed data. The IQR is the difference between the 75th percentile (Q3) and the 25th percentile (Q1) of the data.

From the plot, we can see that Q1 is 2 and Q3 is 8. Therefore, the IQR is 8 - 2 = 6.

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Step-by-step explanation:

To find the number that is 175% of 31, we can use the following formula:

175% of X = 31

Mathematically, we can represent 175% as 1.75 (since percentage is a ratio out of 100).

So, the equation becomes:

1.75 * X = 31

To solve for X, we divide both sides of the equation by 1.75:

X = 31 / 1.75

Using a calculator, we can evaluate the right-hand side to find the value of X:

X ≈ 17.714

So, 175% of approximately 17.714 is equal to 31.

Answer:

17.714

Step-by-step explanation:

These two events are independent. The action of Rafi downloading a song does not affect the probability of another customer in another city searching for a song on the same site.

The two events, Rafi downloading a song and a customer searching for a song, are independent because the occurrence of one event does not affect the probability of the other event occurring.

In other words, the actions of Rafi do not affect the actions of the customer in another city, and vice versa. The two events are unrelated and can occur simultaneously without affecting each other.

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The lengths of the base and height are, 13 miles and 52 miles respectively.

Given that;

The area of a parallelogram is, 676 square miles

And, the height is four times the length of the base,

Hence, We get;

Length of base = x

Height = 4x

Since, Area of the parallelogram = Base × Height

Hence, We get;

676 = x × 4x

x² = 676 / 4

x² = 169

x = √169

x = 13 miles

Thus, Length of base = x = 13 miles

Height = 4x = 4 x 13

                  = 52 miles

Thus,, The lengths of the base and height are, 13 miles and 52 miles respectively.

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Answer: the slope of line = y2-y1÷x2-x1

Step-by-step explanation:x1=1 x2=-1 y1=9 y2=6

                                              slope=(6-9)÷(-1-1)

                                               slope= (-3)÷(-2)

                                                answer= 3

                                                               2

A polygon with n sides is simply referred to as an n-gon.

A polygon with n sides is simply referred to as an n-gon. This naming convention allows for any polygon to be easily identified based on the number of sides it has, without the need for a specific name for every possible number of sides.

For example, a polygon with 3 sides is called a triangle, a polygon with 4 sides is called a quadrilateral, while a polygon with 5 sides is called a pentagon. However, for polygons with sides greater than 12, the names become less commonly used, and n-gon is often used instead as a general term to describe any polygon with n number of sides.

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A polygon with a number of sides, n, that does not have a special name is typically referred to as an "n-gon".

A polygon is a geometric object with two dimensions and a finite number of sides. A polygon's sides are made up of segments of straight lines that are joined end to end. As a result, a polygon's line segments are referred to as its sides or edges. Vertex or corners refer to the intersection of two line segments, where an angle is created. Having three sides makes a triangle a polygon. A circle is a plane figure as well, but it isn't regarded as a polygon because it's curved and lacks sides and angles. So, while all polygons are two-dimensional shapes, not all two-dimensional figures are polygons.

For example, a polygon with 5 sides would be called a pentagon, but a polygon with 7 sides would simply be called a heptagon or a 7-gon.

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The model predicts that the player should score around 17.47 points per game based on their 4.1 free throw attempts per game. However, the player's observed score of 13.7 points per game suggests that they may be underperforming compared to what would be expected based on this relationship.

Let us assume that the model predicts a linear relationship between points per game and free throw attempts per game, we can calculate the predicted value of points per game for this player using the regression equation

points per game = slope * free throw attempts per game + intercept

From the given data, we know that the slope of the regression line is 2.6 and the intercept is 7.1. Plugging in the values for this player, we get:

points per game = 2.6 * 4.1 + 7.1 = 17.47

So the model predicts that this player should score approximately 17.47 points per game, which is higher than the observed value of 13.7 points per game. This suggests that this player may be underperforming compared to what would be expected based on their free throw attempts per game.

However, just one player and there may be other factors that could affect their performance beyond just free throw attempts per game.

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A 2-column table titled Balloon Payment Mortgage has 7 rows. The first column has entries mortgage amount, term, interest rate, monthly payment, balloon payment, total interest, total payment. The second column has entries 170,000 dollars, 8 years, 4 percent, 811 dollars and 61 cents for 95 months, 143,152.99, 50,256, 220,256. By the end of year 8, Demarco and Tanya would have to pay a final payout of $143,152.

Hence, the correct option is C.

With the help of the given values, we know that the mortgage amount is $170,000 and the interest rate is 4%. The term of the loan is 8 years, which is equivalent to 96 months.

To calculate the monthly payment, we can use the following formula

P = (r * A) / (1 - (1 + r)^(-n))

Where P is the monthly payment, r is the monthly interest rate (which is 4% / 12 = 0.00333), A is the mortgage amount, and n is the total number of months (which is 96).

By putting the values, we get

P = (0.00333 * 170000) / (1 - (1 + 0.00333)^(-96))

P ≈ $811.61

Hence, the monthly payment is $811.61.

The total interest paid over the life of the loan can be calculated as the difference between the total payment and the mortgage amount.

Total interest = Total payment - Mortgage amount

Total interest = $220,256 - $170,000

Total interest = $50,256

Now, we can calculate the balloon payment using the formula

Balloon payment = A * (1 + r)^n - [P * ((1 + r)^n - 1) / r]

Where A is the mortgage amount, r is the monthly interest rate, P is the monthly payment, and n is the number of months until the balloon payment is due (which is 95 in this case).

By substituting the values, we get

Balloon payment = 170000 * (1 + 0.00333)^95 - [811.61 * ((1 + 0.00333)^95    - 1) / 0.00333]

Balloon payment ≈ $143,152.99

Hence, the correct option is C.

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Answer$143,152

Step-by-step explanation:

Justin made a total deposit of $1985.66.

A deposit is a sum of money that is added to an account or made available for use in a financial transaction. It can refer to money that is placed into a bank account, such as a savings or checking account, or to a payment made in advance for goods or services. Deposits are often required when b accounts, taking out loans, or making large purchases.

In the context of banking, deposits can earn interest, which can increase the amount of money in the account over time.

Let's start by adding up the bills:

Total amount of bills = 8 x 100 + 27 x 50 + 83 x 5 + 141 x 1

Total amount of bills = 800 + 1350 + 415 + 141

Total amount of bills = 1706

Next, let's add up the coins:

Total amount of coins = 13 x 0.25 + 117 x 0.05

Total amount of coins = 3.25 + 5.85

Total amount of coins = 9.10

Now, let's add up the checks:

Total amount of checks = 317.94 + 57.89 + 527.24 + 77.49

Total amount of checks = 980.56

Finally, let's add up the cash back:

Total amount of cash back = 30 x 20 + 11 x 10

Total amount of cash back = 600 + 110

Total amount of cash back = 710

To find the total deposit, we need to add up all the amounts:

Total deposit = Total amount of bills + Total amount of coins + Total amount of checks - Total amount of cash back

Total deposit = 1706 + 9.10 + 980.56 - 710

Total deposit = 1985.66

Therefore, Justin made a total deposit of $1985.66.

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The equation that will be  used to determine the population, y, of Log Village x years after 2010 is y= 1800(1.09)ˣ

What is equation?

An equation is a mathematical statement which is made by two expressions connected by an equal sign. For example, 3x – 8 = 16 is an equation. Solving this equation, we get the value of the variable x as x = 8.

The population of Log Village is 1800 in 2010, and the population increases each year by 9%.

Initial population(p)= 1800

rate of increase(r)= 9%

Time(t)= x years.

The formula for the population after n years is p(1+r/100)ⁿ.

To determine the equation for the population after x years we have to put the values in the above expression.

So putting all the values we get,

The population, y, of Log Village x years after 2010 is

          y= 1800( 1+9/100)ˣ

          y= 1800(1.09)ˣ

Hence, The equation that will be  used to determine the population, y, of Log Village x years after 2010 is y= 1800(1.09)ˣ

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Based on the sample of a one-hectare forest community in early August, an estimate can be made for the total number and diversity of shrub species present in the community.

From the sample of the one-hectare forest community, several estimates can be made for the shrubs in the forest community:

Abundance: The abundance of shrubs in the one-hectare forest community can be estimated by multiplying the number of shrubs in the sample by 10 (the number of species represented by the sample). Therefore, an estimate of the total number of shrubs in the one-hectare forest community would be 17 x 10 = 170 shrubs.

Species richness: The sample contained 10 species of shrubs. This can be used as an estimate of the total number of shrub species in the one-hectare forest community.

Diversity: The diversity of the shrub community in the one-hectare forest can be estimated using the data on species richness and abundance. The most commonly used metric for estimating diversity is the Shannon-Wiener diversity index, which takes into account both the number of species and their relative abundance.

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X is the adjacent side and is 50 inches long.

Using the trigonometric ratio of cosine:

cos(60 degrees) = adjacent / hypotenuse

cos(60 degrees) = 1/2 (cosine of 60 degrees is 1/2)

So, we can solve for the X, the adjacent:

adjacent = cos(60 degrees) x hypotenuse

adjacent = (1/2) x 100 inches

adjacent = 50 inches

Therefore, the length of the adjacent is 50 inches.

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Applying the Angles of Intersecting Chords Theorem, the value of x in the circle is: x = 69 degrees.

The Angles of Intersecting Chords Theorem if two chords intersect inside a circle, then the size of the angle formed by the intersection is equal to half the sum of the sizes of the intercepted arcs, along with the size of its vertical angle.

Apply the theorem to find the value of x by creating the equation below:

x = 1/2 * (86 + 52)

x = 1/2 * (138)

x = 69 degrees.

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The term you're looking for is "uncertain digits."

Uncertain digits refer to the digits in a measurement that exceed the level of certainty provided by the measuring instrument.

Measurements, it is crucial to recognize the limitations of the instruments being used, as this can impact the precision and accuracy of the results.
Precision is the degree to which an instrument can consistently produce the same measurement, while accuracy is the closeness of a measurement to its true value.

Uncertain digits can affect both of these aspects.
To better understand uncertain digits, consider the following step-by-step explanation:
Identify the measuring instrument:

This could be a ruler, thermometer, or any other device used to take measurements.
Determine the instrument's least count:

The least count is the smallest unit the instrument can measure.

A ruler with millimeter markings has a least count of 1 millimeter.
Record the measurement:

When taking a measurement, include all the certain digits (those within the instrument's least count) and one uncertain digit.

The uncertain digit is an estimate, and it represents the best guess within the least count of the instrument.
Keep in mind the limitations:

Recognize that uncertain digits are an inherent part of the measuring process and that they affect the precision and accuracy of the results.
Uncertain digits are the digits that exceed the certainty of a measuring instrument.

It is important to consider these digits and the limitations of the instruments used when conducting experiments or making measurements.

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5. The value of x in the figure is

7. Length of arc AD is 125 degrees

8. Angle ROT is 36.87 degrees

The length of chord x is solved using Pythagoras theorem as follows

5.

let x/2 = y then we have

y² = 12² - 9 ² = 144 - 81 = 63

y = √63 = 3√7

and x/2 = y = 3√7. so x = 6√7

7. BD is the diameter hence arc BAD = 180 degrees

if arc ABC is 110 then arc BA = 110 /2 = 55

Arc AD = arc BAD - arc BA

Arc AD = 180 - 55

Arc AD = 125 degrees

8. Angle ROT = arc sin (3/5)

Angle ROT = 36.87 degrees

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Answer:

A. They have different y-intercepts but the same end behavior.

Step-by-step explanation:

From the shape of f we see that its a descending exponential  fnction, so the  factor taken to the power x will be a fraction,  and from the points the eqation is

f(x) = 2(1/4)^x + 2

and the y-intercept is 4

g(x) has y-intercept of 4(1/4)^0 + 2 = 6  so they are different.

As x approaches infinity  both  f and g approach 2 so the end behavior s the same.