QUESTION 7, Saturday, October 10th, 2020

I have some geometry questions today. Please include your thoughts or reasoning with your answer. Please ignore the answer I selected for it was not an purpose. Thanks!

The correct options that could be an example of a function with a domain (-∞0,00) and a range (-∞,4) are given below.Option A. V = -(0.25)x - 4 Option B. V = − (0.25)x+4

A function can be defined as a special relation where each input has exactly one output. The set of values that a function takes as input is known as the domain of the function. The set of all output values that are obtained by evaluating a function is known as the range of the function.

From the given options, only option A and option B are the functions that satisfy the condition.Both of the options are linear equations and graph of linear equation is always a straight line. By solving both of the given options, we will get the range as (-∞, 4) and domain as (-∞, 0).Hence, the correct options that could be an example of a function with a domain (-∞0,00) and a range (-∞,4) are option A and option B.

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Answer:

-4.0

Step-by-step explanation:

I took the quiz

Answer:

Fire?

Step-by-step explanation:

fire would need and not need all of these things

Answer:

Fire.

Step-by-step explanation:

It has to be fire?

Answer:

QR = 54 cm

SR = 27 cm

plz mark my answer brainlist plzzzz

The major reason to use a value of 0.1 rather than 0.5 in the simple exponential smoothing forecasting method is to place more emphasis on recent data points.

In simple exponential smoothing, the forecasted value for the next period is calculated by combining the actual value from the current period with a weighted average of the forecasted value from the previous period. The weighting factor, represented by 'a', determines the level of importance given to the most recent data points.

By choosing a smaller value of 'a' (e.g., 0.1), more weight is placed on recent observations, resulting in a forecast that is more responsive to recent changes in the data. This is particularly useful when the underlying pattern in the data is changing rapidly or when there is a need to capture short-term fluctuations or trends.

On the other hand, choosing a larger value of 'a' (e.g., 0.5) would give equal weight to all data points, making the forecast more stable and less sensitive to recent changes. This is appropriate when the underlying pattern is relatively stable and there is a desire to smooth out short-term fluctuations in the data.

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The answer is:5.56 seconds (rounded to the nearest 100th of a second).Given,The equation that describes the height of the rocket, y in feet, as it relates to the time after launch, x in seconds, is as follows: y = − 16x² + 89x+ 50.

To find the time that the rocket will hit the ground, we must set the height of the rocket, y to zero. Therefore:0 = − 16x² + 89x+ 50. Now we must solve for x. There are a number of ways to solve for x. One way is to use the quadratic formula: x = − b ± sqrt(b² − 4ac)/2a,

Where a, b, and c are coefficients in the quadratic equation, ax² + bx + c. In our equation, a = − 16, b = 89, and c = 50. Therefore:x = [ - 89 ± sqrt( 89² - 4 (- 16) (50))] / ( 2 (- 16))x = [ - 89 ± sqrt( 5041 + 3200)] / - 32x = [ - 89 ± sqrt( 8241)] / - 32x = [ - 89 ± 91] / - 32.

There are two solutions for x. One solution is: x = ( - 89 + 91 ) / - 32 = - 0.0625.

The other solution is:x = ( - 89 - 91 ) / - 32 = 5.5625.The time that the rocket will hit the ground is 5.5625 seconds (to the nearest 100th of a second). Therefore, the answer is:5.56 seconds (rounded to the nearest 100th of a second).

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The time that the rocket would hit the ground is 2.95 seconds.

Based on the information provided, we can logically deduce that the height (h) in feet, of this rocket above the​ ground is related to time by the following quadratic function:

h(t) = -16x² + 89x + 50

Generally speaking, the height of this rocket would be equal to zero (0) when it hits the ground. Therefore, we would equate the height function to zero (0) as follows:

0 = -16x² + 89x + 50

16t² - 89 - 50 = 0

\(t = \frac{-(-80)\; \pm \;\sqrt{(-80)^2 - 4(16)(-50)}}{2(16)}\)

Time, t = (√139)/4

Time, t = 2.95 seconds.

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These are the solutions to the quadratic equation p^2 + 2p^2 - 5 * 2p + 5 = 0.

To solve the quadratic equation p^2 + 2p^2 - 5 * 2p + 5 = 0, we need to simplify and rearrange the equation to its standard form and then solve for p.

Combining like terms, the equation becomes:

3p^2 - 10p + 5 = 0

Now, we can use the quadratic formula to solve for p. The quadratic formula states:

p = (-b ± √(b^2 - 4ac)) / (2a)

For our equation, a = 3, b = -10, and c = 5. Substituting these values into the quadratic formula, we have:

p = (-(-10) ± √((-10)^2 - 4 * 3 * 5)) / (2 * 3)

Simplifying further:

p = (10 ± √(100 - 60)) / 6

p = (10 ± √40) / 6

p = (10 ± 2√10) / 6

Now, we can simplify and find the two possible values of p:

p₁ = (10 + 2√10) / 6

p₂ = (10 - 2√10) / 6

These are the solutions to the quadratic equation p^2 + 2p^2 - 5 * 2p + 5 = 0.

In simplified form, the solutions are:

p₁ = (5 + √10) / 3

p₂ = (5 - √10) / 3

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An example of a geometric formula that contains pi(π) is the formula for the circumference of a circle, which is

C = 2πr. This formula is used to calculate the distance around a circle.

A geometric formula is a mathematical equation that describes a relationship between geometric figures or their properties.

Geometric formulas are used to calculate the area, perimeter, volume, surface area, and other properties of shapes such as circles, triangles, rectangles, spheres, cubes, and cylinders. For example, the formula for the area of a triangle is

A = 1/2 b×h, where b is the base of the triangle and h is its height.

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There are 42 ways to exit the mall if the mall has four escalators, one elevator, and three stairwells to travel from the second floor to the first floor.

A permutation can be defined as the number of ways a set can be arranged, order matters but in combination the order does not matter.

There are four escalators, one elevator, and three stairwells to travel from the second floor to the first floor.

Total ways to travel from second floor to first floor = C(8, 1) = 8

Total ways to travel from first floor to exit gate = C(6, 1) = 6

Total ways to exit from the mall = 8×6 = 42

Thus, there are 42 ways to exit the mall if the mall has four escalators, one elevator, and three stairwells to travel from the second floor to the first floor.

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Answer:

multiply ata gagawin dyan Ewan

Answer:n=−2

Step-by-step explanation:

Answer:

$42.12

Step-by-step explanation:

.9(45) = 40.5

40.5(1.04) = 42.12

Answer: i got 38.88

Step-by-step explanation: i used an  calculator which of the option of using the percent sign in an equation. i did 45 - 10% of 45 then that got me 40.5 so afterwards i did 40.5 - 4% of 40.5.

Answer:

Step-by-step explanation:

10 grams

Marks obtained are 33 and 45 when two students took an exam. one of them achieved 9 marks more than the other and his marks were 56% of the sum of both of their marks.

Similar to this, we are describing an algebraic expression when we explain an expression in words that has a variable (an expression with a variable). For instance, the algebraic expression for "3 more than x" can be written. x + 3 . Variables can be written straight after a regular integer in algebraic expressions that use them, with no symbol needed in between. An algebraic expression is one that has been constructed using integer constants, variables, and algebraic operations. A good example of an algebraic expression is 3x²+ 2xy + c.

Given,

Two students took an exam. one of them achieved 9 marks more than the other and his marks were 56% of the sum of both of their marks.

Let the marks be x and x+9

Algebraic equation,

x+ 9 = 56/100(x+x+9)

x + 9 = 14/25 (2x +9)

25(x+ 9) = 14(2x+9)

25x + 225 = 28x +126

28x - 25x = 225 - 126

3x = 99

x = 33

Marks obtained are 33 and 45.

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Answer: Hello! I'm JK!.....

B. I Only. (inside the triangle)

Step-by-step explanation:

I really hope this helps you.  XoXoGoldenMaknae <3

Answer:

488 sq ft

Step-by-step explanation:

Alright, so:

The formula for the area of a trapezoid is as follows:

\(A=\frac{a+b}{2} h\)

In this case, a and b are the bases.

Insert the values into our equation and we have...

\(A = \frac{39+17}{2} (16)\\A = \frac{56}{2} (16)\\A = 488ft^{2}\)

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

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Answer:

you just need to get 93 and times it my the number next to it and you will get your answer which is 257

Answer:

C

Step-by-step explanation:

Longest practice is 2 1/2 hours long

Shortest is 1 1/4 hours long

For difference, subtract 1 1/4 from 2 1/2

Convert mixed to improper fractions

(2*2+1)/2 - (1*4+1)/4

5/2 - 5/4

10/4 - 5/4 = 5/4

Change back to mixed fraction

1 1/4

The values of the trigonometric identities are;

1. tan X = 10/17

2.  tan X = 29/25

3. sin A = 24/25

4. tan C = 15/17

5. sin A = 8/17

6. cos A = 9/41

7. cos Z = 3/4

Note that fractions are the part of a whole number.

Also,

sin θ = opposite/hypotenuse

cosθ = adjacent /hypotenuse

tan θ = opposite/adjacent

1. tan X = opposite/ adjacent

tan X = 30/21 = 10/7

2. tan X = 29/25

3. sin A = opposite/hypotenuse

sin A = 24/25

4. tan C = opposite/adjacent

tan C = 30/34

tan C = 15/17

5. sin A = 16/34

sin A = 8/17

6. cos A = adjacent/hypotenuse

cos A = 9/41

7. sin A = 21/35

8. cos Z = 21/28

cos Z = 3/4

Hence, the fractions takes the function of the trigonometric identities.

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The conditional probability that a degree is earned by a person whose race is white, given that it is an associate's degree, is 0.571.

The percentage of associate's degrees is 21%.

The percentage of degrees earned by people whose race is white is 58%.

The percentage of associate's degrees out of all degrees earned by people whose race is white is 12%.

Let the probability of earning an associate's degree be P(A).

P(A) = 0.21

Let the probability of earning a degree by the people whose race is white be P(B).

P(B) = 0.58

Let the probability of earning an associate's degree by the people whose race is white be P(C).

P(C) = 0.12

P(C) = P(A∩B)

We need to find the conditional probability that a degree is earned by a person whose race is white, given that it is an associate's degree.

P(B/A) = P(A∩B)/P(A)

P(B/A) = 0.12/0.21

P(B/A) = 0.571

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we have

P = 5x+30

S=80

and S+P=140

then:

answer: B. 6

The answer is c. Chi-square test. A Chi-square test is an inferential statistical technique used to analyze the relationship between two categorical variables organized in a bivariate table.

In a chi-square test, the data is organized into a contingency table, also known as a cross tabulation or bivariate tabulation. This table displays the frequency distribution of two categorical variables, showing how they are related or associated with each other.

The chi-square test evaluates whether there is a significant relationship or association between the variables. It calculates a test statistic based on the observed frequencies in the contingency table and compares it to the expected frequencies under the assumption of independence between the variables. If the test statistic is sufficiently large, it indicates that there is a significant relationship between the variables, rejecting the null hypothesis of independence.

The chi-square test is widely used in various fields, including social sciences, market research, and epidemiology, to determine if there is a significant association between categorical variables. It provides valuable insights into the relationship between variables and helps researchers make informed conclusions based on their data.

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Answer:

720

Step-by-step explanation:

6! is just 1 x 2 x 3 x 4 x 5 x 6

Here is your Answer:-

4 = whole number 1 = numerator 7 = denominator To convert mixed number 4 1/7 to improper fraction, you follow these steps: Multiply the whole number by the denominator 4 × 7 = 28.

The improper fraction of the mixed number 4 1/7 is given by A = 29/7

A mixed number is a whole number, and a proper fraction represented together. A mixed number is formed by combining three parts: a whole number, a numerator, and a denominator. The numerator and denominator are part of the proper fraction that makes the mixed number.

Given data ,

Let the mixed number be represented as A

Now , the value of A is

A = 4 1/7   be equation (1)

On simplifying the equation , we get

To convert the mixed number to improper fraction ,

A = [ ( 4 x 7 ) + 1 ] / 7

On further simplification , we get

A = [ 28 + 1 ] / 7

A = 29 / 7

Hence , the improper fraction is 29/7

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The main condition for a setting to be considered binomial is that the probability of success remains the same for each trial, and the other conditions include having 3 possible outcomes for each observation, no variation in outcomes based on the first success, and independence of trials from one another.

A condition for a setting to be considered binomial is that the probability of success is the same for each trial.

In order for a setting to be considered binomial, there are certain conditions that need to be met. The first condition is that the probability of success remains constant for each trial or observation. This means that the likelihood of achieving the desired outcome remains unchanged throughout the entire process.

The second condition states that each observation or trial must have exactly 3 possible outcomes. This implies that there are only three options or choices for each trial, typically categorized as success, failure, or a neutral outcome.

The third condition is that the number of outcomes should not vary based on the occurrence of the first success. This means that the probability of success is not affected or altered by the outcome of previous trials.

Lastly, the fourth condition is that the trials or observations must be independent of one another. This implies that the outcome of one trial should not impact the outcome of subsequent trials.

Therefore, the main condition for a setting to be considered binomial is that the probability of success remains the same for each trial, and the other conditions include having 3 possible outcomes for each observation, no variation in outcomes based on the first success, and independence of trials from one another.

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the criteria used when deciding upon the inclusion of a variable are A - Theory, B - t-statistic, C - Bias, and D - Adjusted R^2.

When deciding upon the inclusion of a variable, the following criteria are commonly used:

A - Theory: Theoretical justification is often considered to include a variable in a model. It involves assessing whether the variable is relevant and aligns with the underlying theory or conceptual framework.

B - t-statistic: The t-statistic is used to determine the statistical significance of a variable. A variable with a significant t-statistic suggests that it has a meaningful relationship with the dependent variable and may be included in the model.

C - Bias: Bias refers to the presence of systematic errors in the estimation of model parameters. It is important to consider the potential bias introduced by including or excluding a variable and assess whether it aligns with the research objectives.

D - Adjusted R^2: Adjusted R^2 is a measure of the goodness of fit of a regression model. It considers the trade-off between the number of variables included and the overall fit of the model. Adjusted R^2 helps in assessing whether the inclusion of a variable improves the model's explanatory power.

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Brian's reduced cholesterol level is 263. The correct option is c.

A ratio or value that may be stated as a fraction of 100 is called a percentage. And it is represented by the symbol '%'.

Given:

Brian has reduced his cholesterol level by 6% by following a strict diet and regular exercise.

And his original level was 280.

So, to find the reduced cholesterol level:

Let m be the percentage value of reduced level.

So,

m = 6% of 280

m = 6 x 280 / 100

m = 16.8

So, the level = 280 - 16.8

= 263.2

≈ 263

Therefore, the cholesterol level is 263 now.

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In summary, given a simple dataset with 30 points, the following steps were performed: (a) OLS estimation was used to calculate the coefficients β^0 and β^1 for the regression of Y on X.

(b) the predicted value of Y was calculated for each observation; (c) the residuals were calculated for each observation; (d) the Explained Sum of Squares (ESS), Total Sum of Squares (TSS), and Residual Sum of Squares (RSS) were calculated separately; (e) the coefficient of determination R^2 was calculated; (f) the predicted value of Y was determined when X equals the last digit of the CUNY ID plus one; and (g) the interpretation of β^0 and β^1 was provided.

In detail, to calculate the OLS estimates of coefficients β^0 and β^1, a regression model of Y on X was fitted using the given dataset. β^0 represents the intercept term, which indicates the value of Y when X is zero. β^1 represents the slope of the regression line, indicating the change in Y corresponding to a unit change in X.

The predicted value of Y for each observation was obtained by plugging the corresponding X value into the regression equation. The residuals were then calculated as the difference between the observed Y values and the predicted Y values. ESS represents the sum of squared differences between the predicted Y values and the mean of Y, indicating the variation explained by the regression model.

TSS represents the total sum of squared differences between the observed Y values and the mean of Y, representing the total variation in Y. RSS represents the sum of squared residuals, indicating the unexplained variation in Y by the regression model. R^2, also known as the coefficient of determination, was calculated as ESS divided by TSS, indicating the proportion of total variation in Y explained by the regression model. Finally, the predicted value of Y was determined when X equals the last digit of the CUNY ID plus one, allowing for an estimation of Y based on the given information.

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