Someone plese help me!

The answer of the given question based on the Newton's law is , the scenario demonstrates Newton's second law of motion.

Newton's laws of motion are  set of fundamental principles that describe  behavior of a objects in motion. They were formulated by Sir Isaac Newton in the 17th century and are considered to be the foundation of classical mechanics. It consists of three laws of motion they are , Newton's First Law of Motion , Newton's Second Law of Motion , Newton's Third Law of Motion. These laws explain how objects move and interact with one another, and they have numerous applications in physics, engineering, and other fields.

The scenario given describes Newton's second law of motion, which states that the acceleration of an object is directly proportional to the force applied to it and inversely proportional to its mass.

In this case, the force applied to the softball by the person's hit causes the softball to accelerate faster. The more force applied to the softball, the greater the acceleration of the softball.

Therefore, the scenario demonstrates Newton's second law of motion.

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Answer:

Below

Step-by-step explanation:

formula for area of circle: A = (pie)(r)^2

1. 5 cm radius:

A = (pie)(r)^2

A = (pie)(5)^2

A = 78.54 and 78.5 cm^2

2. 6 cm radius:

A = (pie)(r)^2

A = (pie)(6)^2

A = 113.04 cm^2

3. 9 cm radius:

A = (pie)(r)^2

A = (pie)(9)^2

A = 254.34 cm^2

10. 10 cm radius:

A = (pie)(r)^2

A = (pie)(10)^2

A = 314 cm^2

Hope this helps^^

a) The probability that the student is going to be Female student is 0.33.

b)The probability that the student is male student is 0.67.

c) The probability that we get a male student or A grade student is 0.92.

d) The probability that we get a male student or female student is 1.

e) A probability of more than 1 indicate an error in calculation.

It is given that The Times of Oman, leading newspaper had organized reading competition for the students and the competition was attended by 40 Male students and 20 Female students. The exam result shows that 18 Male students and 15 female students obtained A Grade and remaining students got either B or Grade.

a) If a student is selected randomly, the probability that the student is going to be a female student is:

Probability = Number of female students / Total number of students = 20 / (40 + 20) = 20 / 60 = 1/3 or 0.33 (approx).

b) If a student is selected randomly, the probability that the student is a male student is:

Probability = Number of male students / Total number of students = 40 / 60 = 2/3 or 0.67 (approx).

c) If a student is selected randomly, the probability that we get a male student or an A grade student:

Probability = P(male) + P(A grade) - P(male and A grade) = (40/60) + [(18 + 15) / 60] - (18/60) = 0.67 + 0.55 - 0.3 = 0.92 (approx).

d) If a student is selected randomly, the probability that we get a male student or a female student:

Since there are only male and female students, this covers all possibilities, so the probability is 1.

e) If the probability is more than 1, it indicates an error in the calculation, as probabilities can never be greater than 1.

Probabilities range from 0 (impossible event) to 1 (certain event).

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The variable for an event that the number of heads in 50 tossed coins is a discrete variable. So, option(a) is right one.

A variable is a quantity whose value can be changed as a math problem. Thereare two types of variables:

Discrete variables represent counts, or the number of items in the collection. But continuous variables represent measurable quantities. Discrete variables are variables that have a measurable difference. For example, if X is equal to the number of miles (to the nearest mile) we drive to work, then X is a discrete random variable. We count the miles. Here we have an experiment of tossing a coin, We have to identify the variable used for the number of heads in 50 tossed coins. So, number of heads when flipping a coin is a discrete variable statement because once the coin is flipped, we will get head or tail result.

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The measure of the third angle is 72°.

What is the measure of angle?

An angle measure in geometry is the length of the angle created by two rays or arms meeting at a common vertex. Since an angle is measured in degrees, the term "degree measure" is used. Since 360 degrees make up one full revolution, it is divided into 360 equal sections.

Here, we have

Given: Two angles in a triangle have measures of 35° and 73°

We have to find the measure of the third angle.

The interior angle sum of a triangle will be 180 degrees.

Since we are given two angle measures, we can set up an equation to find the unknown angle measure.

35° + 73° + x = 180°

x = 180° - 35° - 73°

x = 72°

Hence, the measure of the third angle is 72°.

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Equation that could be uses to find the price of one tire patch is Option A: 4x – 1.9 = 22.2.

What is an equation?

A mathematical definition of an equation is a claim that two expressions are equal when they are joined by the equals sign ("=").

We can use the equation -

4x + 1.9 = 22.2

Where x is the price of one tire patch.

Multiplying both sides by 100 to get rid of the decimals -

400x + 190 = 2220

Subtracting 190 from both sides -

400x = 2030

Dividing both sides by 400 -

x ≈ 5.075

Therefore, the price of one tire patch is approximately $5.075.

The equation 4x – 1.9 = 22.2 is also valid, but it yields the same result.

The other equations are not valid.

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Answer:

Step-by-step explanation:

To find the weight of an adult bull whose z-score is 1.5, we need to use the formula:

z = (x - μ) / σ

where z is the z-score, x is the weight of the bull we want to find, μ is the population mean weight (1450 pounds), and σ is the population standard deviation (240 pounds).

We can rearrange this formula to solve for x:

x = z*σ + μ

Substituting the given values, we get:

x = 1.5 * 240 + 1450

x = 360 + 1450

x = 1810

Therefore, the weight of an adult bull whose z-score is 1.5 is 1810 pounds.

The perimeter of the polygon is 61 feet.

A polygon is a two-dimensional geometric shape that is defined as a closed plane figure with three or more straight sides and angles. It is a flat shape made up of line segments that are connected end to end to form a closed shape.

The perimeter of a polygon is the total length of its sides. To find the perimeter of a polygon, we need to add up the lengths of all its sides.

In this problem, we are given the lengths of the sides of a polygon in feet: 12ft, 16ft, 9ft, 9ft, and 15ft.

To find the perimeter, we simply add up these lengths:

Perimeter = 12ft + 16ft + 9ft + 9ft + 15ft

Perimeter = 61ft

Therefore, the perimeter of the polygon is 61 feet. Note that the unit for the answer is feet, since all the lengths were given in feet.

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Step-by-step explanation:

The equation for the height h of point P on the windmill blade after it has rotated by an angle a can be given by:

h(a) = r - r * cos(a + α)

where:

In this case, since point P is currently rotated π/4 radians from the point directly to the right of the center of the windmill, we can substitute α with π/4 in the equation:

h(a) = 1.5 - 1.5 * cos(a + π/4)

This equation gives the height of point P on the windmill blade above the ground after it has rotated by an angle of a, with the initial position of the blade being π/4 radians from the point directly to the right of the windmill center, assuming the windmill blade is 1.5 feet long.

Answer:

Step-by-step explanation:

I don't see the question.

When a marketing manager surveys a few of the customers for the purpose of drawing a conclusion about the entire list of customers, she is applying inferential statistics.

Hence option a is the correct answer.

Inferential statistics is referred to that field of statistics which uses analytical tools to draw conclusions about a population by examining (or, surveying) random samples (taken from the population).

Inferential statistics generalizes the observations derived from the sample as the observations from the population.

Here the marketing manager surveys a few of the customers who work as representation of the population of customers to draw conclusions, that is the observation is generalized for the entire list of customers though it is based on replies from a few customers.

Thus, the marketing manager is applying inferential statistics.

Hence option a is the correct answer.

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To find the expected value and variance of a negative binomial random variable with moment generating function mx(t) = (1 - p)^r / (1 - pe^t)^r, we need to use the following formulas:

The nth moment of a random variable is given by mx^(n)(0), the nth derivative of the moment generating function evaluated at t = 0.

The expected value of a random variable is given by mx^(1)(0).

The variance of a random variable is given by mx^(2)(0) - [mx^(1)(0)]^2.

Using these formulas, we can find the expected value and variance of the negative binomial random variable.

First, let's find the first two derivatives of the moment generating function:

mx'(t) = r(1-p)^rpe^t / (1-pe^t)^(r+1)

mx''(t) = r(1-p)^rpe^t(r+1-pe^t) / (1-pe^t)^(r+2)

Now we can evaluate the moment generating function and its derivatives at t = 0 to find the expected value and variance:

mx(0) = (1 - p)^r / (1 - p)^r = 1

mx'(0) = r(1-p)^r p / (1-p)^(r+1)

mx''(0) = r(r+1)(1-p)^r p / (1-p)^(r+2) + r(1-p)^r p / (1-p)^(r+1)

Using the formulas for the expected value and variance, we have:

E[X] = mx'(0) = r(1-p) / p

Var[X] = mx''(0) - [mx'(0)]^2 = r(1-p) / p^2

Therefore, the expected value of the negative binomial random variable is E[X] = r(1-p) / p, and the variance is Var[X] = r(1-p) / p^2, where p and r are the parameters of the distribution.

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Answer: greater than

Step-by-step explanation:

p(spinning even) = [tex]\frac{2}{5}[/tex] = 0.4

p(drawing even card) = [tex]\frac{5}{13}[/tex] = 0.384615384615

so 2/5 is greater than 5/13

The expected number of calls in the first 30 minutes is 7.5

The Poisson distribution is frequently utilized to show the number of occasions that happen in a settled interim of time or space.

In this case, the number of calls to a Web benefit supplier during the hour between 6:00 and 7:00 p.m. is portrayed by a Poisson distribution with the mean rise to 15.

Since the Poisson distribution is memoryless, we will accept that the number of calls within the to begin with 30 minutes moreover takes after a Poisson conveyance with the mean rise to 15/2 = 7.5.

Typically since the expected number of occasions in a settled interim is relative to the length of the interim.

In this manner, the anticipated number of calls within the to begin with 30 minutes is 7.5. 

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Answer:

Step-by-step explanation:

Arc length = θ/360 × 2πr

= 150/360 ×2π×12

= 31.4 ft

B) False
The information given states that 50 out of 250 customers ordered a strawberry Blizzard, which represents a probability of 20% (50/250).

However, this does not guarantee that exactly one out of the next five customers will order a strawberry Blizzard. It only indicates the probability of a customer choosing a strawberry Blizzard based on past data.

The fact that 50 out of 250 customers ordered a strawberry Blizzard represents a probability of 20% (50/250). This probability is based on past data, and it represents the proportion of customers who have ordered a strawberry Blizzard in the past. It does not provide any information about what will happen in the future.

When we talk about the probability of an event occurring, we are making a statement about the likelihood of that event occurring based on past data and assumptions about how the future will unfold. However, the probability does not provide any guarantees about what will actually happen in the future.

Therefore, the statement "exactly one out of the next five customers will order a strawberry Blizzard" cannot be guaranteed based solely on the fact that 50 out of 250 customers have ordered a strawberry Blizzard in the past. It is important to note that probability only provides a measure of likelihood, and does not guarantee any specific outcome.

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There are no points where the curve has a vertical tangent line; hence, the [tex](t + 6)2[/tex] can never be zero.

So, none is the response.

To find the vertical tangent lines to the curve, we first need to find the derivative of x with respect to t, and then set the denominator of the derivative equal to zero.

Let's proceed step by step.
The given equation is[tex]x = (3t^2 / (t + 6)) - 6.[/tex]
To find the derivative of x with respect to t (dx/dt), we will use the quotient rule: [tex](d(u/v)/dt) = (v(du/dt) - u(dv/dt)) / v^2. \\Here, u = 3t^2 and v = t + 6.[/tex]
First, find the derivative of[tex]u (du/dt): du/dt = d(3t^2)/dt = 6t.[/tex]
Then, find the derivative of[tex]v (dv/dt): dv/dt = d(t + 6)/dt = 1.[/tex]
Now, apply the quotient rule to find[tex]dx/dt: dx/dt = ((t + 6)(6t) - 3t^2(1)) / (t + 6)^2.[/tex]

Simplify the expression: [tex]dx/dt = (6t^2 + 36t - 3t^2) / (t + 6)^2 = (3t^2 + 36t) / (t + 6)^2.[/tex]
For a vertical tangent line, the denominator of the derivative [tex](t + 6)^2[/tex]must equal zero.

However, squaring any real number cannot yield a zero result.

The [tex](t + 6)^2[/tex] can never be zero, there are no points where the curve has a vertical tangent line.

So, the answer is: None.

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Answer:

Whenever the simplified form of two ratios are equal, then we can say that the ratios are equivalent ratios. For example, 6 : 4 and 18 : 12 are equivalent ratios, because the simplified form of 6 : 4 is 3 : 2 and the simplified form of 18 : 12 is also 3 : 2. Hope this helps FAST good luck friend of mine!!!

Step-by-step explanation:

so yes it does

Answer:

yes

Step-by-step explanation:

18/12 = 3/2

we need to know the value of S₇(5) to determine the value of I.

I = S₇(0) + S₇(7) - 2S₇(5) = 9 + 7 - 2S₇(5) = 16 - 2S₇(5)

We can use the properties of integrals to determine the value of I:

I = ∫_0⁵ f(x)dx + ∫_5⁷ f(x)dx

Using the given information, we can express the two integrals on the right-hand side in terms of S₇(0) and S₇(5):

∫_0⁵ f(x)dx = S₇(0) - S₇(5)

∫_5⁷ f(x)dx = S₇(7) - S₇(5)

Substituting these expressions into the equation for I, we get:

I = (S₇(0) - S7(5)) + (S₇(7) - S₇(5))

Simplifying this expression, we get:

I = S₇(0) + S₇(7) - 2S₇(5)

Now we can use the given values of S₇(0), S₇(5), and S₇(7) to find I:

I = S₇(0) + S₇(7) - 2S₇(5) = 9 + 7 - 2S₇(5) = 16 - 2S₇(5)

Therefore, we need to know the value of S₇(5) to determine the value of I.

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Based on the information provided, it appears that the government directed innovation activities during the Vietnam War had a unique program that gave qualifying applicants the opportunity to work at the US Government Office of Research instead of being drafted for combat. This program had a specific goal, which may have been to support innovation efforts during the war or to provide an alternative service opportunity for those who did not want to fight in combat.



Overall, this program is an interesting example of how the government can direct innovation activities through specific programs and initiatives. It also demonstrates how random selection can be used to determine who participates in these programs, which may have implications for how successful they are in achieving their goals.
In this scenario, the government implemented a program during the Vietnam War that allowed qualifying applicants to work at the US Government Office of Research as an alternative to being drafted for combat. The program's objective was to promote innovation and increase patenting by utilizing the skills and expertise of these individuals. The government randomly selected the candidates who would be offered the opportunity to work in the Office of Research, ensuring a fair selection process. This program highlights the potential impact of government-directed innovation activities on patenting and showcases how the government can actively support and encourage advancements in technology and research.

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The test statistic t0 is -0.243. This can be answered by the concept of Standard deviation.

To find the test statistic t0, you can use the following formula:

t0 = (x - µ) / (s / √n)

where  x is the sample mean, µ is the hypothesized population mean, s is the sample standard deviation, and n is the sample size.

Plugging in the given values:

t0 = (7.9 - 8.0) / (1.3 / √10)

t0 = (-0.1) / (1.3 / 3.162)

t0 = -0.1 / 0.411

t0 = -0.243

After rounding to three decimal places, the test statistic t0 is -0.243.

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The correct answer is (b) SSE can never be smaller than SST.

SSE (Sum of Squared Errors) and SST (Total Sum of Squares) are terms used in statistics, specifically in the context of regression analysis.

In regression analysis, the total variation in the dependent variable (Y) can be decomposed into two parts: the variation explained by the independent variable(s) (X) and the variation that is not explained by the independent variable(s). SST represents the total variation in Y, while SSE represents the unexplained variation in Y.

a. larger than SST: This is not possible, as SSE represents only the unexplained variation in Y, while SST represents the total variation in Y. Therefore, SSE must always be less than or equal to SST.

b. smaller than SST: This is true, as explained above. SSE represents the unexplained variation in Y, which is always less than or equal to the total variation in Y represented by SST.

c. equal to 1: This is not possible, as SSE and SST are measures of variation in Y and are not constrained to a particular range or value.

d. equal to zero: This is also not possible, as SSE represents the unexplained variation in Y, and there will almost always be some unexplained variation in real-world data. If SSE were equal to zero, it would indicate a perfect fit of the regression model, which is unlikely to occur in practice.

Therefore, the correct answer is (b) SSE can never be smaller than SST.

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SSE can't exceed SST, can be smaller than SST, can equal to 1 when data is standardized, and can equal to zero if the model fits the data perfectly.

SSE (Sum of Squared Errors) and SST (Total Sum of Squares) are statistical measures used in regression analysis. They provide information about the variability of data points around a fitted value. The SSE is never larger than SST as it accounts for the variance that the model doesn't explain, whereas SST accounts for total variance in the data. SSE can be equal to zero if the model perfectly fits the data. It cannot be equal to 1 unless the data is standardized and the model perfectly fits the data. Therefore, the answer can be summarized as:

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Option (1) is correct. The minimum weight an interpreter can guess without  winning a prize is 138 pounds and the maximum weight is 146 pounds.  

 Linear equations are first-order equations. Linear equations are defined for the lines of the coordinate system. If an equation has a homogeneous variable of degree 1 (that is only one variable),  it is called a linear equation in one variable. A linear equation can have more than one variable.  

The correct equation would be:  a) |x - 142| ≤ 4

Explanation:

The carnival performer claims to be able to guess a person's weight within 4 kilograms of their actual weight, which means that the difference between the guessed weight and the actual weight must not be  more than 4 kilograms.

Let x be the weight of the carnival performer. In this case the difference between x and 142 cannot be  more than 4 pounds. It can be written as:

|x - 142| ≤ 4

This inequality means that x can be any weight within 4 pounds of 142, giving the range:

142 - 4 ≤ x ≤ 142 4

138 ≤ x ≤ 146

Therefore, the minimum weight an interpreter can guess without  winning a prize is 138 pounds and the maximum weight is 146 pounds.

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The answers are:
(a) f(3,2,3) = 18
(b) fy(4,3,3) = 12
(c) fz(2,3,3) = 6


To find these partial derivatives, we use the formula:

∂f/∂x = yz
∂f/∂y = zx
∂f/∂z = yx

(a) To find f(3,2,3), we just plug in those values:

f(3,2,3) = (3)(2)(3) = 18

(b) To find fy(4,3,3), we plug in those values and take the partial derivative with respect to y:

fy(4,3,3) = z(4) = 12

(c) To find fz(2,3,3), we plug in those values and take the partial derivative with respect to z:

fz(2,3,3) = y(2) = 6

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After answering the query, we may state that  He may show his abilities circle as a data analyst and get the respect of his peers by doing this.

Each point in the plane that is a certain distance from the centre (another point) forms a circle. Thus, it is a curve composed of points whose are separated from another point in the plane by a certain distance. Additionally, at every angle, it is alternately symmetric about the centre. The closed, two-dimensional plane of a circle has every pair of points equally separated from the "centre." By drawing a line through the circle, one may create a line of circular symmetry. Additionally, at every angle, it is rotationally equal about the centre.

It's vital to highlight that Nefarian's strategy is already problematic since, before starting the study, he already has a desired outcome in mind (his layout is an upgrade). This could result in confirmation bias, when he purposefully or unintentionally manipulates the evidence to support his preferred conclusion.

Furthermore, drawing conclusions that are incorrect might emerge from exploiting subsets of data to reach the intended outcome. Instead of cherry-picking certain subsets of data that just so happen to support the intended result, it is crucial to use all the information available to draw a judgement.

Nefarian should use all the available data and perform a hypothesis test using an appropriate statistical approach (such as a two-sample t-test or chi-squared test) to correctly assess the efficacy of his design. To offer a more thorough picture of the outcomes, he should additionally disclose the p-value and confidence interval.

Nefarian should concentrate on providing a comprehensive and objective study rather than attempting to manipulate the facts to suit his preferred result if he wants to make an impression on his superiors with his research. He may show his abilities as a data analyst and get the respect of his peers by doing this.

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a) The t critical values are -1.708 and  1.708

b) The t critical values are -1.782 and  1.782

What is t-statistic ?

The t-statistic in statistics measures how far an estimated value of a parameter deviates from its hypothesised value in relation to its standard error.

T symbol in statistics mean Test statistic for t-test ( t-score )

a) At α = 0.10,  df=14+13-2 = 25( two tailed)

t critical values are -1.708 and  1.708

b) At α = 0.10,  

df= smaller(n1-1, n2-1)= smaller(14-1, 13-1)= smaller(13, 12) = 12

t critical values are -1.782 and  1.782

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Answer:

4.8 squared meters

Step-by-step explanation:

divide the area value by 10,000

The probability of exactly 12 citizens favoring the substation out of a random pattern of 20 citizens is about 16.77%

This is a binomial probability problem, where we want to discover the chance of obtaining exactly 12 favorable responses out of 20, given that the probability of an person being in want of the substation is 0.85.

The method for the possibility of having exactly k successes in n independent Bernoulli trials, each with probability of fulfillment p, is given via the binomial distribution:

P(X = k) = (n choose k) * [tex]p^k * (1-p)^{(n-k)}[/tex]

Where (n choose k) represents the range of approaches to pick k objects from a fixed of n objects.

Using this formulation, we are able to calculate the chance of obtaining exactly 12 favorable responses out of 20 as:

P(X = 12) = (20 choose 12) * [tex](0.85)^{12} * (1-0.85)^{(20-12)}[/tex]

P(X = 12) = 0.1677 (rounded to four decimal places)

Therefore, Out of a random sample of 20 individuals, the probability of exactly 12 citizens favouring the substation is around 0.1677, or 16.77%

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The critical value for this hypothesis test is 29.71. This means that if the test statistic calculated from the sample data is greater than 29.71, we would reject the null hypothesis and conclude that there is evidence to support the alternative hypothesis that the population standard deviation is greater than 9.3.

To find the critical value(s) for a one-tailed hypothesis test where the alternative hypothesis is H1: σ > 9.3, with a significance level of α = 0.05 and a sample size of n = 18, we need to use the chi-square distribution with n - 1 degrees of freedom.

The critical value can be found using a chi-square distribution table or a calculator. Specifically, we need to find the chi-square value that corresponds to a cumulative area of 1 - α = 0.95 to the right of the distribution.

The degrees of freedom is n - 1 = 18 - 1 = 17. Using a chi-square distribution table with 17 degrees of freedom and a cumulative area of 0.95 to the right, we can find the critical value to be approximately 29.71.

Therefore, the critical value for this hypothesis test is 29.71. This means that if the test statistic calculated from the sample data is greater than 29.71, we would reject the null hypothesis and conclude that there is evidence to support the alternative hypothesis that the population standard deviation is greater than 9.3.

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The statement is true. If f and g are decreasing on an interval I, then their sum, f + g, is also decreasing on the interval I.

Statement: If f and g are decreasing on an interval I, then f + g is decreasing on I.
Answer: True.

Explanation:
1. Since f is decreasing on interval I, this means that for any x1, x2 in I, if x1 < x2, then f(x1) > f(x2).
2. Similarly, since g is decreasing on interval I, for any x1, x2 in I, if x1 < x2, then g(x1) > g(x2).
3. Now, let's consider the function h(x) = f(x) + g(x).
4. We need to show that h is decreasing on interval I. For any x1, x2 in I with x1 < x2, we want to show that h(x1) > h(x2).
5. From steps 1 and 2, we have f(x1) > f(x2) and g(x1) > g(x2).
6. Adding these inequalities, we get f(x1) + g(x1) > f(x2) + g(x2), which means h(x1) > h(x2).
7. So, h(x) = f(x) + g(x) is decreasing on interval I.

The statement is true. If f and g are decreasing on an interval I, then their sum, f + g, is also decreasing on the interval I.

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