What does 2( 3- 8y )= equal too

A model with a lower AIC or BIC value is preferred using linear regression.

She can run a linear regression model or she can do both. A correlation coefficient measures the strength of a relationship between two variables but does not indicate the nature of the relationship (positive or negative) or whether it is causal or not. Linear regression is used to model a relationship between two variables and to make predictions of future values of the dependent variable based on the value of the independent variable(s). Additionally, linear regression analysis allows for statistical testing of whether the slope of the relationship is different from zero and whether the relationship is statistically significant. Milly also wants to know if there is a relationship between walking distance and smoking status (with categories 'current' or 'ex-smokers').

Milly should perform a point-biserial correlation analysis since walking distance is a continuous variable while smoking status is a dichotomous variable (current or ex-smokers). The point-biserial correlation analysis is used to determine the strength and direction of the relationship between a dichotomous variable and a continuous variable.

If the β coefficient had a 95% confidence interval that ranged from −5.74 to −0.47.

The β coefficient had a 95% confidence interval that ranged from −5.74 to −0.47 indicates that if the value of the independent variable increases by 1 unit, the value of the dependent variable will decrease between −5.74 and −0.47 units. The interval does not contain 0, so the effect is statistically significant. Milly finds:

MWT1_best =α+β∗ PackHister

χ=442.2−1.1∗ PackHistory and the corresponding 95% confidence interval for β ranges from −1.9 to −0.25.  

The 95% confidence interval for β ranges from −1.9 to −0.25 indicates that there is a statistically significant negative relationship between PackHistory and MWT1best. It means that for every unit increase in pack years of smoking, MWT1best decreases by an estimated 0.25 to 1.9 units.Milly decides to fit the multivariable model with age, FEV1 and smoking pack years as predictors. MWT1best =α+β1∗AGE+β2∗FEV1+β3∗ PackHistory

Milly is wondering whether this is a reasonable model to fit. Milly should wonder about the model as the predictors may not be independent of one another and the model may be overfitting or underfitting the data. Milly has now fitted several models and she wants to pick a final model.

To pick a final model, Milly should use the coefficient of determination (R-squared) value, which indicates the proportion of variance in the dependent variable that is explained by the independent variables. She should also consider the adjusted R-squared value which is similar to the R-squared value but is adjusted for the number of predictors in the model. Additionally, she can compare the Akaike Information Criterion (AIC) or the Bayesian Information Criterion (BIC) values of the different models. A model with a lower AIC or BIC value is preferred.

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We are given the values of a and b and an equation involving exponents. We need to solve for the value of x.

The given equation is \((a)^2\) =\((b)^2\) * \((x)^2\).

We can solve for x by isolating it on one side of the equation. Let's rewrite the equation: \((a)^2\) = \((b)^2\) * \((x)^2\)

Taking the square root of both sides, we have: \(\sqrt{a^2}\)= \(\sqrt{b^2}\) * \((x)^2\)

Simplifying further, we get: a = b * x

Now we can solve for x by dividing both sides of the equation by b: x = a / b.

Substituting the given values of a and b into the equation, we have: x = 0.697 / 0.6

Evaluating this expression, we find: x ≈ 1.162

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The associated number of degrees of freedom for reading the t-value is 58.

The aim is to determine an interval for the mean of a population.

The standard deviation is unknown to us. The sample consists of 59 items. The mean of the sample is determined to be 32. We need to calculate the associated number of degrees of freedom for reading the t value.

We know that the degree of freedom is one less than the number of items in the sample space.

The associated number of degrees of freedom for reading the t-value is 59-1.

The associated number of degrees of freedom for reading the t-value is 58.

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Answer:

que

Step-by-step explanation:

no Tengo carnitas yo quero sopes

Answer:

0.21

Step-by-step explanation:

i cant do a number line but to check these all you need to do is compare the digits untill you see one is bigger. once you find that you can tell which one is the biggest number. hope this helps!

Breaking the absolute values, we will get the solutions:

1) x < -25 or x > 1.

2) -25 < x < 1

3) x = 1 or x = -25

Starting with the first one:

|x + 12| > 13

This can be broken into two inequalities:

x + 12 > 13

x + 12 < - 13

Solving the two we get:

x > 13 - 12 = 1

x < -13 - 12 = -25

So we have the composite inequality:

x < -25 or x > 1.

The second one gives:

|x + 12| < 13

Again, we can broke this into two ones, we will get:

x + 12 < 13

x + 12 > -13

Solving the two we get:

x < 13 - 12 = 1

x > -13 - 12 = -25

So we have the inequality:

-25 < x < 1

Finally the equation:

|x + 12| = 13

Again, broke this one into two:

x + 12 = 13

x + 12 = -13

Solving thet wo:

x = 13 - 12 = 1

x = -13 -12 = -25

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Answer: Hope This Helps!

Step-by-step explanation:

Statistic Definition: A mathematical science concerned with data collection, presentation, analysis, and interpretation

Examples: "Statistics is the only mathematical field required for many social sciences." and "The statistics from the Census for apportionment are available."

Answer:

X>43

Step-by-step explanation:

X+24-24>67-24

x>43

The measure of the complement of the angle is A) 54.

Given:

The ratio of the measure of the supplement of an angle to that of a complement of the angle is 8:3.

Let x be the angle.

supplement of the angle of x is = 180-x

complement of the angle of x is = 90 -x

180 - x / 90 -x = 8/3

3(180-x) = 8(90-x)

3*180 - 3*x = 8*90 - 8*x

540 - 3x = 720 - 8x

-3x+8x = 720 - 540

5x = 180

divide by 5 on both sides

x = 180/5

x = 36

Complement of the angle = 90 - 36

= 54

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Answer: Around 67%

Step-by-step explanation:

92+70+41=203

203/3=67 2/3

Around 67%

Answer:

I think it's a 67.667

Step-by-step explanation:

1.Multiply each grade by the credits or weight attached to it

2. add all of the weighted grades together (or just the grades if there's no weighting)

3. divide the sum by the number of grades you added together

Answer: The answer to this math question about solving for x with the given 2 basic fractions is \(x = 3.\)

Step-by-step explanation: Mmmm, that was super extremely easy, so anyway, here are 2 basic steps in order to solve for x with the given 2 basic fractions:

Step 1. First, let's cancel the terms that are in both the numerator and denominator that looks in the equation form like this: \(\frac{10x}{10} = \frac{30}{10}, x = \frac{30}{10}.\)

Step 2. Last but not least is after we cancel the terms that are in both the numerator and denominator, finally, let's divide the numbers that looks in the equation form like this: \(x = \frac{30}{10}, x = 3.\)

I hope that my full given answer with my full given step-by-step explanation is very helpful to your own math question about solving for x with the given 2 basic fractions, please mark me as Brainliest, take care, always be safe, and have a great rest of the day and good night! :D

Sincerely,

Jason Ta,

The Ambitious of The Brainly And The Role of The TDSB And WHCI Student of The High School.

The required value of constant of variation, k does not exist for which x and y vary directly.

What is the constant of proportion?

A constant of proportion is illustrated as the ratio which relates two given quantities with each other in the relationship of proportion.  Constant of proportion is also called constant variation, rate of change, and constant ratio.

Solving for the value of constant of variation  

When a quantity varies directly with others, then we have a relation, y = kx, where k is the constant of the proportion      —-- 1

Given relation is y = 4x + 1

On comparing it with equation 1, we get, that y does not vary directly with x

Hence, the required value of constant of variation does not exist.

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Answer: x = 0, 6/7

Step-by-step explanation:

     Given:

7x² - 6x + 3 = 3

     Subtract 3 from both sides of the equation

7x² - 6x = 0

     Factor:

x(7x - 6) = 0

     Solve:

1] x = 0            2] 7x - 6 = 0,    7x = 6,    x = 6/7

     Answer:

x = 0, 6/7

Answer:

33

Step-by-step explanation:

please mark me as brainliest!!<3

x = 7, AC ≈ 24, and AD ≈ 24 for the given quadrilateral with diagonal intersection at E.

The opposite sides of a square are parallel and equal in length, and the adjacent sides are perpendicular. The diagonal of a square is a line segment connecting two opposite vertices and bisects the square into two congruent right triangles. The area of a square is calculated by squaring the length of one of its sides (A = s²), and its perimeter is four times the length of one of its sides (P = 4s).

Since E is the point of intersection of the diagonals of a square ABCD, we have:

AE = BE (diagonals of a square bisect each other)

Therefore, we can set the expressions for AE and BE equal to each other and solve for x:

2x + 3 = 10x - 53

56 = 8x

x = 7

Now that we know x, we can substitute it into the expressions for AE and BE to find their lengths:

AE = 2x + 3 = 2(7) + 3 = 17

BE = 10x - 53 = 10(7) - 53 = 17

Since AC and AD are sides of a square, they have the same length. Let's call that length s. Then, using the Pythagorean Theorem, we have:

AC² = AE² + EC²

s² = 17² + EC²

AD² = AE² + ED²

s² = 17² + ED²

Since EC = ED, we can set these two equations equal to each other and solve for s:

17² + EC² = 17² + ED²

EC² = ED²

Taking the square root of both sides, we get:

EC = ED

Substituting this into one of the equations above, we have:

s² = 17² + EC² = 17² + ED² = 2(17²)

s = √(2(17²)) ≈ 24 (rounded to the nearest whole number)

Therefore, x = 7, AC ≈ 24, and AD ≈ 24.

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The Hardy-Weinberg equation is a mathematical formula used to calculate the frequency of alleles (alternative forms of genes) in a population.

It states that the frequency of alleles and genotypes in a population will remain constant from generation to generation in the absence of other evolutionary influences.

The equation is expressed as: p² + 2pq + q² = 1

In this equation, p represents the frequency of the dominant allele in the population, and q represents the frequency of the recessive allele.

The superscripts 2 represent the proportion of individuals in the population that are homozygous for that allele (meaning they have two copies of the same allele), while the 2pq term represents the proportion of individuals that are heterozygous (meaning they have one copy of each allele).

The sum of these terms is always equal to 1, as it represents the entire population.

This equation assumes several conditions: that the population is large, randomly mating, with no mutations, migration, natural selection, or genetic drift.

In reality, these conditions are rarely met, and the Hardy-Weinberg equation serves as a useful model for understanding how allele frequencies can change over time due to various evolutionary influences.

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the pool can contain approximately 8,218 gallons of water.

A cylindrical swimming pool has a diameter of 20 feet and a height of 3.5 feet. We are required to find out how many gallons of water can the pool contain.

Converting diameter to radius: The diameter of the cylinder is given as 20 feet. Hence the radius of the cylinder can be obtained by dividing the diameter by 2.

r= 20/2 = 10 feet

Volume of cylinder:Volume of cylinder is given by πr2h where π is a mathematical constant whose value is approximately 3.14r is the radius of the cylinderh is the height of the cylinder.

Putting values into the formula, we get:

π(10)²(3.5)≈ 1,095.75 ft³

Converting ft³ to gallons: 1 ft³ = 7.5 gallons

Therefore, 1,095.75 ft³ ≈ 8,218.13 gallons

the pool can contain approximately 8,218 gallons of water.Hence, the pool can contain approximately 8,218 gallons of water.

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Answer: x= 6

Step-by-step explanation:

Since the shape is a parallelogram, the angles will either be equal to each other or add up to 180.  

You can see they do not look the same so they add up to equal 180

12x + 3 +105 = 180

12x + 108 = 180

12x = 72

x = 6

1. ASA

2. HL

3. Not congruent

Answer:

Answer:

I guess that you want to find the profit:

We have two equations:

the cost equation:

C(x) = -0.1*x^2 + 100.

And the selling equation, that is a vertical stretch of the cost equation by a factor of 1.4:

S(x) = 1.4*C(x) = 1.4*( -0.1*x^2 + 100.) = -0.14*x^2 + 140

Now, whit those two equations we can find the profit equation, that is defined as the difference between the selling price, and the cost:

P(x) = S(x) - C(x) = 1.4*C(x) - C(x) = (1.4 - 1)*C(x) = 0.4*C(x).

Then the profit is 0.4 times the initial cost.

P(x) = 0.4*( -0.1*x^2 + 100.) = -0.04*x^2 + 40

Answer:

D. S(C(x))= –0.14x^2+140; $108.50

Step-by-step explanation:

Cause the others are wrong

Answer:

The general equation for a parabola in vertex form is given by:

y = a(x - h)^2 + k

Comparing this with the equation y = -0.25x^2 + 5, we can see that the vertex form is y = a(x - h)^2 + k, where a = -0.25, h = 0, and k = 5.

To find the coordinates of the focus of the parabola, we can use the formula:

(h, k + 1/(4a))

Substituting the values into the formula:

(0, 5 + 1/(4 * -0.25))

Simplifying:

(0, 5 - 1/(-1))

(0, 5 + 1)

Therefore, the coordinates of the focus of the parabola are (0, 6).

Answer:

Step-by-step explanation:

To find the coordinates of the focus of the parabola defined by the equation y = -0.25x^2 + 5, we can use the standard form of a parabola equation:

y = a(x - h)^2 + k

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

Comparing the given equation to the standard form, we can see that a = -0.25, h = 0, and k = 5.

The x-coordinate of the focus is the same as the x-coordinate of the vertex, which is h = 0.

To find the y-coordinate of the focus, we can use the formula:

y = k + (1 / (4a))

Substituting the values, we get:

y = 5 + (1 / (4 * (-0.25)))

= 5 - 4

= 1

Therefore, the coordinates of the focus of the parabola are (0, 1).

Answer:

50

Step-by-step explanation:

The given equation is,

→ 3x/4 - (2x + 5)/3 = 5/2

→ 3x × 3 - 4(2x +5)/12 = 5/2

→ 9x - 8x -20/12 = 5/2

→ (x - 20)/12 = 5/2

→ x - 20 / 6 = 5

→ x - 20 = 30

→ x = 20 + 30

→ x = 50

Answer:

x=50

Step-by-step explanation:

Answer:

(

x

,

y

)

=

(

26

5

,

−

6

5

)

Step-by-step explanation:

The following is true of primary data collection: primary data are collected specifically for the research problem at hand.Primary data collection refers to the process of collecting new data or original data that have not been collected before. Primary data are the first-hand data gathered by researchers from original sources.

The following is true of primary data: primary data are collected specifically for the research problem at hand. Primary data are collected to meet specific research objectives and to provide solutions to research problems.Primary data collection methods are affected by the biases of the respondent.

This is because the collection of primary data requires direct contact between the researcher and the respondents or participants. It is important to note that primary data collection methods are relatively more expensive than secondary data. Therefore, researchers should consider the cost implications of primary data collection methods before using them.

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a) The correlation between the ages of husbands and wives would be negative if men always marry women who are 3 years younger than themselves. b) The correlation between the ages of husbands and wives would be positive if men always marry women who are 2 years older than themselves. c) The correlation between the ages of husbands and wives would depend on the distribution of ages in the population.

a) If men always marry women who are 3 years younger than themselves, there would be a negative correlation between the ages of husbands and wives. The correlation coefficient would be negative, indicating an inverse relationship.

b) If men always marry women who are 2 years older than themselves, there would be a positive correlation between the ages of husbands and wives. The correlation coefficient would be positive, indicating a direct relationship.

c) If men always marry women who are 1.1 times as old as themselves, the correlation between the ages of husbands and wives would depend on the distribution of ages in the population.

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The constant (equilibrium) solution to the differential equation x′(t) = x(t) is x(t) = Ce^(t), where C is a constant. This equilibrium is stable if C < 0, semi-stable if C = 0, and unstable if C > 0.

To find the equilibrium solutions, we set x′(t) = x(t). This gives us the equation:

x′(t) - x(t) = 0

This is a first-order linear homogeneous differential equation. The general solution is x(t) = Ce^(t), where C is a constant determined by the initial condition. To determine stability, we analyze how x(t) behaves as t goes to infinity:

1. If C < 0, x(t) approaches 0 as t goes to infinity, which means the equilibrium is stable.
2. If C = 0, x(t) remains constant at 0, which indicates a semi-stable equilibrium.
3. If C > 0, x(t) grows unbounded as t goes to infinity, indicating an unstable equilibrium.

So, the constant (equilibrium) solution x(t) = Ce^(t) can be stable, semi-stable, or unstable depending on the value of C.

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Answer:

$14.45

Step-by-step explanation:

To find the discount price of the item, we need to multiply the regular price by the discount percentage and then subtract that amount from the regular price.

The discount percentage is 85%, which is equal to 0.85 when expressed as a decimal. Therefore, the discount price of the item is 17 * (1 - 0.85) = 17 * 0.15 = $2.55.

Thus, Sam paid a total of $17 - $2.55 = $14.45 for the item.