3 degrees below 0°F. Is it positive or negative?
6 feet above sea level. Is it positive or negative?
Someone found $4. Is it positive or negative?
Someone owes their brother $12. is it positive or negative?
13 POINTS!~!!!!!!!!!!!

The terms "cross-sectional study" and "time-series study" refer to different types of research designs. A cross-sectional study collects data from a population at a specific point in time, whereas a time-series study collects data from the same population over an extended period.

Based on this definition, it is difficult to classify a graph as either a cross-sectional or time-series study without additional context.

A graph alone does not provide enough information about the research design. It would be best to refer to the accompanying study or research report to determine the type of study represented by the graph.
Therefore, the long answer to your question is that a graph cannot be classified as a cross-sectional or time-series study without further information about the research design.

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Answer:

29719.2

Step-by-step explanation:

Answer:

  triangle angle sum theorem

Step-by-step explanation:

The missing statement is one that justifies the sum of the angles in a triangle being 180°.

That justification is provided by the ...

  triangle angle sum theorem

Step-by-step explanation:

the given data is

tanθ = 2.773 and 0<θ<π/2

this implies θ = tan inverse(2.773)

⇒ θ =  70.16°

Therefore, sinθ = sin70.16° = 0.9406

similarly,cosθ =  cos70.16° = 0.3393

therefore, values of sinθ and cosθ are  0.9406 and 0.3393 respectively.

Answer:

Step-by-step explanation:

I really don’t know but I think you have to find the hypothenuse first then you can do the rest

Answer:

Step-by-step explanation:

"SAS" is when we know two sides and the angle between them. use The Law of Cosines to calculate the unknown side, then use The Law of Sines to find the smaller of the other two angles, and then use the three angles add to 180° to find the last angle.

Answer:

25%

Step-by-step explanation:

$115 - $92 = $23 (first blank)

To do the fraction it is the new amount/the original amount

23/92

divide 23 and 92

23/92 = 0.25 (second and third blank)

0.25 x 100% = 25%

The best prediction of the number of times Maverick should spin a 4 is 3 times.

Assuming the spinner is fair and unbiased, the best guess for how many times Maverick should spin a 4 is three.

The expected number of times a 4 should appear can be calculated by calculating the probability of spinning a 4 (1/5, or 0.2) by the total number of spins (15):

Expected number of 4's = Probability of spinning a 4 x Total number of spins

Expected number of 4's = 0.2 x 15

Expected number of 4's = 3

Therefore, the best prediction of the number of times Maverick should spin a 4 is 3 times.

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Standard formula of linear equation is: y = mx+b

What is algebraic equation?

In mathematics, an algebraic or polynomial equation is an equation of the form P=0, where P is a polynomial with coefficients in some field (often a field of rational numbers). For many authors, the term algebraic equation refers only to univariate equations, i.e. polynomials involving only one variable. A polynomial, on the other hand, may contain multiple variables. For multiple variables (multivariate), the term polynomial is usually preferred over algebraic equations.

Some, but not all, polynomials with rational coefficients have solutions that are algebraic expressions that can be found using a finite number of operations involving only the same kind of coefficients (that is, they can be solved algebraically I can). This can be done for any equation of degree 1, 2, 3, or 4. But for 5th grade and above, it can only be done for some equations, not all. Much work has been devoted to efficiently computing exact approximations to real or complex solutions to univariate algebraic equations (see Root Finding Algorithms).

Therefore, Standard formula of linear equation is: y = mx+b

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Answer:

x = -4

Step-by-step explanation:

Step 1: Write equation

-5x - 10 = 10

Step 2: Solve for x

Step 3: Check

Plug in x to verify it's a solution.

-5(-4) - 10 = 10

20 - 10 = 10

10 = 10

Answer:

3/8  or 37.5%

Step-by-step explanation:

The  difference between addition and subtraction of polynomials is that addition involves like terms  and subtraction  involves taking one polynomial away from another.

A polynomial is characterized as an expression that is composed of variables, exponents, and constants, that are combined utilizing numerical operations such as addition, subtraction, multiplication, and division (No division operation by a variable).In addition to polynomials, the like terms are included whereas, in subtraction, the like terms are subtracted. The addition of polynomials involves combining like terms to form a single expression, while subtraction involves taking one polynomial away from another. In addition, when subtracting polynomials, the sign of each term in the second polynomial needs to be changed (from positive to negative, or from negative to positive).

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This process occurs in the mouth, stomach, and small intestine.What is hydrolysis.Hydrolysis is the process by which large molecules are broken down into smaller molecules by adding water. This process occurs during the digestion of food in the stomach and small intestine.

Peristalsis, absorption, digestion, and hydrolysis are some of the essential processes that take place in the gastrointestinal tract. These processes help to break down food into small, manageable pieces and turn it into usable nutrients that can be absorbed by the body.What is peristalsis?Peristalsis is the process by which food is propelled through the digestive tract. This movement is caused by the contraction and relaxation of muscles in the digestive tract walls.What is absorption?Absorption is the process by which nutrients are transported from the digestive tract into the bloodstream, where they can be used by the body. The majority of nutrient absorption happens in the small intestine.What is digestion?Digestion is the process by which food is broken down into smaller, simpler molecules. This process occurs in the mouth, stomach, and small intestine.What is hydrolysis.Hydrolysis is the process by which large molecules are broken down into smaller molecules by adding water. This process occurs during the digestion of food in the stomach and small intestine.

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Answer:

x= -3

Step-by-step explanation:

4(x-6)+27= -9

4x-24+27= -9

4x+3= -9

-3

4x= -12

÷4

x= -3

To determine if there is a difference in the average percentage of season games of their favorite sport a fan attends based on if their favorite sport is baseball or basketball, we would need to conduct a study and collect data on both baseball and basketball fans.

We would then calculate the average percentage of season games attended by each group and compare the results.

If there is a statistically significant difference between the two groups, we can conclude that there is a difference in the average percentage of season games attended based on favorite sport.

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Answer:

\( x = 20\\

m\angle 3 = 115\degree \\

m\angle 5 = 65\degree \\

\)

Step-by-step explanation:

\(m\angle 3 + m\angle 5= 180\degree \\

(interior \:\angle\:Postulate) \\

(x + 95) \degree +(3x + 5) \degree = 180\degree \\

(4x + 100)\degree = 180\degree \\

4x + 100 = 180\\

4x = 180-100\\

4x = 80\\

x = \frac{80}{4}\\

\huge \red {\boxed {x = 20}} \\\\

m\angle 3 =(x + 95)\degree \\

m\angle 3 =(20 + 95)\degree \\

\huge \orange {\boxed {m\angle 3 =115\degree}} \\\\

m\angle 5 = (3x + 5)\degree \\

m\angle 5 = (3\times 20+ 5)\degree \\

m\angle 5 = (60+ 5)\degree \\

\huge \purple{\boxed {m\angle 5 = 65\degree}} \\\\

\)

The value of logm 4/m is 1.139 - 2 logm m. This means that we can express logm 4/m in terms of other logarithmic values without finding the exact value of m.

Given that logm 3 = 0.903, logm 4 = 1.139, and logm 7 = 1.599. We are to find logm 4/m.

Using the properties of logarithm, we have,

logm 4/m = logm 4 - logm m

               =1.139 - logm m               .....................................(1)

Again, using the properties of logarithm, we know that:

logm 4 = logm (2 × 2)  

        = logm 2 + logm 2

         = 1.139 = 2logm 2                    ..................................(2)

Substituting equation (2) into (1) gives:

logm 4/m = 2logm 2 - logm

           m = 2logm (2/m)          ..................................................(3)

Using the property of logarithm once again, we know that:

loga b = logc b / logc a                     ............................................(4)

Substituting equation (4) into equation (3), we have:

logm 4/m = 2 logm 2 - logm

m= logm [(2/m)² / m]                       .............................................(5)

Now, we are to find logm 4/m by substituting the given values.

Using equation (2), we have:

logm 2 = (1.139)/2

     = 0.5695

Using equation (5), we get:

logm 4/m = logm [(2/m)² / m]

logm 4/m = logm [4/m²m]

 logm 4/m = logm 4 - logm

logm 4/m = 1.139 - 2 logm m

Therefore, by using the properties of logarithm, we have found that logm 4/m = 1.139 - 2 logm m. This means that we can express logm 4/m in terms of other logarithmic values without finding the exact value of m.

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Two triangles are similar if the ratio of their corresponding side equal'

Triangle

Because

Corresponding sides are

Therefore,

Triangle

The adult male foot length of 24.2 cm is significantly low as it falls outside of the range of 26.10 cm to 28.72 cm.

The range is just the difference between the greatest and smallest data points in a set.

The square root of the variance is the standard deviation.

The standard deviation measures how far apart the data is from the mean.

The range is a less useful measure of variance than the standard deviation.

The range of data is a measure of variance that indicates the difference between the dataset's maximum and least observation.

It is based only on two observations, the maximum and minimum.

The range rule of thumb states that approximately 68% of the data falls within one standard deviation of the mean, and approximately 95% of the data falls within two standard deviations of the mean.

So, the lower limit separating significantly low values will be:

27.41 - 1.31 = 26.10 cm

And the upper limit separating significantly high values will be:

27.41 + 1.31 = 28.72 cm.

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The experimental probability of the computer generating a 1 is D. 40 %.

First, add up the outcomes to see the total number of times the integers were generated ;

= 36 + 11 + 13 + 12 + 18

= 90

The number of times 1 was generated was 36.

The experimental probability is therefore;

= number of times 1 was generated / total number of outcomes

= 36 / 90

= 0. 4

= 40 %

Therefore, the experimental probability of the computer generating a 1 is 40 %.

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Answer:

Y=2x+0.5

Step-by-step explanation:

The gradient is 2/1=2x

The y-intercept looks to be around 0.5

Answer:

y = \(\frac{1}{2}\) x + \(\frac{1}{2}\)

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

Calculate m using the slope formula

m = \(\frac{y_{2}-y_{1} }{x_{2}-x_{1} }\)

with (x₁, y₁ ) = (- 1, 0) and (x₂, y₂ ) = (1, 1) ← 2 points on the line

m = \(\frac{1-0}{1-(-1)}\) = \(\frac{1}{1+1}\) = \(\frac{1}{2}\) , then

y = \(\frac{1}{2}\) x + c ← is the partial equation

To find c substitute either of the 2 points into the partial equation

Using (1, 1 ) , then

1 = \(\frac{1}{2}\) + c ⇒ c = 1 - \(\frac{1}{2}\) = \(\frac{1}{2}\)

y = \(\frac{1}{2}\) x + \(\frac{1}{2}\) ← equation of line

Answer:

2x + 2

Step-by-step explanation:

Simply distribute 2 to each of the terms (you multiply)

2(x + 1)

2x + 2

\(\huge\boxed{Hi!}\)

The Distributive Property  states that

a(b+c)=ab+ac

Let's use this to solve our math problem:

2(x+1)=2x+2

This is our final answer.

\(\huge\boxed{Hope\:this\:helps!}\)

\(\huge\bold{Good\:luck!}\)

\(\huge\mathfrak{LoveLastsAllEternity}\)

answer:

11x

step-by-step explanation:

x + 4x + 6x

= 11x

Answer:

11x

Step-by-step explanation:

just add them all together

x + 4x = 5x

5x + 6x = 11x

hope this helps :)

jackson

Step-by-step explanation:

To show that the distribution function of the envelope Z = √(X² + Y²) is given by F₂(z) = 1 - exp(-z²/2σ²) for z > 0, where σ² = 0.02, we can use the properties of independent Gaussian random variables.

First, let's find the cumulative distribution function (CDF) of Z:

F₂(z) = P(Z ≤ z)

Since X and Y are independent Gaussian random variables with zero mean and variance σ² = 0.02, their joint probability density function (PDF) is given by:

f(x, y) = (1/2πσ²) * exp(-(x² + y²)/(2σ²))

Now, let's find the probability P(Z ≤ z) by integrating the joint PDF over the region where Z ≤ z:

P(Z ≤ z) = ∫∫[x²+y² ≤ z²] (1/2πσ²) * exp(-(x² + y²)/(2σ²)) dx dy

Switching to polar coordinates, x = r cos(θ) and y = r sin(θ), the integral becomes:

P(Z ≤ z) = ∫[θ=0 to 2π] ∫[r=0 to z] (1/2πσ²) * exp(-r²/(2σ²)) r dr dθ

Simplifying the integral:

P(Z ≤ z) = (1/2πσ²) ∫[θ=0 to 2π] [-exp(-r²/(2σ²))] [r=0 to z] dθ

P(Z ≤ z) = (1/2πσ²) ∫[θ=0 to 2π] (-exp(-z²/(2σ²)) + exp(0)) dθ

P(Z ≤ z) = (1/2πσ²) (-2πσ²) * (-exp(-z²/(2σ²)) + 1)

P(Z ≤ z) = 1 - exp(-z²/(2σ²))

Therefore, the cumulative distribution function (CDF) of Z is:

F₂(z) = 1 - exp(-z²/(2σ²))

Substituting σ² = 0.02:

F₂(z) = 1 - exp(-z²/(2*0.02))

F₂(z) = 1 - exp(-z²/0.04)

F₂(z) = 1 - exp(-50z²)

This is the distribution function of the Rayleigh distribution.

To compute and plot its probability density function (PDF), we can differentiate the CDF with respect to z:

f₂(z) = d/dz [F₂(z)]

= d/dz [1 - exp(-50z²)]

= 100z * exp(-50z²)

The PDF of the Rayleigh distribution is given by f₂(z) = 100z * exp(-50z²).

Now, you can plot the PDF of the Rayleigh distribution using this formula.

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On average, a customer spends approximately 1.16 minutes waiting time on hold before they can start speaking to a representative.

To find the average waiting time for a customer on hold before they can start speaking to a representative, we need to consider both the arrival rate of calls and the average service time of the staff members.

Given:

9 staff members taking calls.

On average, one call arrives every 5 minutes (standard deviation of 5 minutes).

Each staff member spends on average 18 minutes with each customer (with a standard deviation of 27 minutes).

To calculate the average waiting time, we need to use queuing theory, specifically the M/M/c queuing model. In this model:

"M" stands for Markovian or memoryless arrival and service times.

"c" represents the number of servers.

In our case, we have an M/M/9 queuing model since we have 9 staff members.

The average waiting time for a customer on hold is given by the following formula:

Waiting time = (1 / (c * (μ - λ))) * (ρ / (1 - ρ))

Where:

c = number of servers (staff members) = 9

μ = average service rate (1 / average service time)

λ = average arrival rate (1 / average interarrival time)

ρ = λ / (c * μ)

First, let's calculate the average arrival rate (λ):

λ = 1 / (average interarrival time) = 1 / 5 minutes = 0.2 calls per minute

Next, calculate the average service rate (μ):

μ = 1 / (average service time) = 1 / 18 minutes = 0.0556 customers per minute

Now, calculate ρ:

ρ = λ / (c * μ) = 0.2 / (9 * 0.0556) ≈ 0.407

Finally, calculate the waiting time:

Waiting time = (1 / (c * (μ - λ))) * (ρ / (1 - ρ))

= (1 / (9 * (0.0556 - 0.2))) * (0.407 / (1 - 0.407))

≈ 1.16 minutes

Therefore, on average, a customer spends approximately 1.16 minutes waiting on hold before they can start speaking to a representative.

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Answer:

angle TVU

Step-by-step explanation:

angle UVT

please mark as brainliest

The constant of proportionality from a graph of any proportional relationship is find as below.

What is an expression?

Mathematical expression is defined as the collection of the numbers variables and functions by using operations like addition, subtraction, multiplication, and division.

Given that;

The constant of proportionality from a graph of any proportional relationship.

Now,

Let the solution of the graph = (2, 10)

Then, The constant of proportionality from a graph of any proportional relationship is find as;

⇒ Constant of proportionality = 10 / 2

                                             = 5

Thus, The constant of proportionality from a graph of any proportional relationship is find as above.

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The ordered pairings where the regions overlap are the answers to the linear inequality system (yellow).

The unitary technique is sometimes useful for multiplying and dividing by fractions because it makes sense immediately and can be done mentally if the numbers add up. This makes it a good method for defending or explaining frequently employed written fractional algorithms, like division by a fraction. The unitary technique has a formula that involves finding the value of a single unit, multiplying it by the quantity of units, and then finding the desired value.

given

Assume that y is the number of necklaces and x is the number of bracelets.

Up to (less than or equal to) 60 pieces (bracelets and necklaces) can be produced by Olivia each week:

x+ y ≤60

Up to (less than or equal to) 40 bracelets can be made by Olivia each week:

x≤40(2)

Up to (less than or equal to) 40 necklaces can be created by Olivia each week.

y≤40(3)

Olivia aims to sell at least 30 products per week, preferably more.

x+y≥30(4)

It is possible to write x+y60 as yx+60 with a boundary of y=x+60. Since is used, we shade below the line and draw the line as solid. (red)

The vertical boundary of x40 is defined by x=40. Because is employed,, after which we darken the line's left side and draw the line as solid. (orange)

The horizontal boundary of y40 is defined by y=40. Because is utilized, we shade below the line and draw a solid line over it. (green)

The expression x+y30 can be written as yx+30 has a limit of y=x+30.

Because is utilized, we shade above the line and draw the line as a solid. (blue)

The ordered pairings where the regions overlap are the answers to the linear inequality system (yellow).

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