What is the double plus 1 number sentence?.

No, X or y-axis scale does not have to always start at zero. In a line chart, it's OK to start the axis at a number other than zero

A line that is used to take or mark measurements is known as an axis in mathematics. Two crucial axes of the coordinate plane are the x and y axes. A horizontal number line is the x-axis, while a vertical number line is the y-axis. The coordinate plane is created by the perpendicular intersection of these two axes.

Given,

No, X or y-axis scale does not have to always start at zero.

A line chart encodes data using location (x, y coordinates), whereas a bar chart represents data using length. In a line chart, it's OK to start the axis at a number other than zero despite many claims that they are always misleading since this minute difference influences how a reader utilizes the chart.

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The equation which relates the x and y will be x² = 169 - y² according to the given triangle formed.

A triangle is a closed, 2-dimensional shape with 3 sides, 3 angles, and 3 vertices.

Triangle is a very common figure to deal with our daily life for example in our daily life to measure the height of any tower then there is a huge application of the right angle triangle.

As per the given,

Length of ladder = 13 foot

By Pythagoras's theorem,

x² + y² = 13²

x² = 169 - y²

Hence "The equation which relates the x and y will be x² = 169 - y² according to the given triangle formed".

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Complete data of the question follows,

Option d is correct that is linear regression. So, linear regression is used in predictive analytics.

Given that,

We have to find which of the following techniques is used in predictive analytics.

We know that,

Predictive analytics, a subset of advanced analytics, employs historical data, statistical modeling, data mining, and machine learning to forecast future outcomes. Businesses utilize predictive analytics to find opportunities and threats by analyzing trends in this data.

We get,

The predictive analysis technique that is most frequently used is linear regression. By using linear relationships between a dependent variable and one or more independent variables, it makes predictions about the target's future.

Therefore, Option d is correct that is linear regression. So, linear regression is used in predictive analytics.

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After calculating the individual discount and coupon percentages of the actual price, we find out that the final price of the new computer monitor is $40.

It is given to us that -

The new computer monitor is regularly priced at $200

It is now on sale for 25% off

After the sale discount, we can also use 20% off coupon

We have to find out the final price of the computer monitor.

The initial price of the new computer monitor = $200

After the sale discount of 25% off is applied to the product, the new price of the monitor can be calculated by finding out

25% of $200 = 0.25 * 200 = $50

Now, after calculating the price of the monitor after the sales discount, we have to find out the final price after the 20% off coupon is applied.

So, 20% of $50 = 0.20 * 50 = $10

So, we can conclude that after the sales discount and after a coupon of $10 off is applied, the final price of the computer monitor is -

$50 - $10

= $40

Thus, calculating the individual discount and coupon percentages of the actual price, we find out that the final price of the new computer monitor is $40.

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The 95% confidence interval for the average examination score of the population of the examinations is (82.99, 85.01).

We have given that,

Sample mean{[tex]\overline x[/tex]} = 84

Sample standard deviation(S) =3.5

Sample size(n) =49

Level of significance=1-0.95=0.05

Degree of freedom =48

t critical value is (by using t table)(t)= 2.011

Confidence interval formula is

[tex]\overline{x}\pm t\times\frac{S}{\sqrt{n}}[/tex]

Now putting the value

[tex]\overline{x}\pm t\times\frac{S}{\sqrt{n}}=84\pm 2.011\times\frac{3.5}{\sqrt{49}}[/tex]

[tex]\overline{x}\pm t\times\frac{S}{\sqrt{n}}[/tex] = 84 ± 2.011 × 3.5/7

[tex]\overline{x}\pm t\times\frac{S}{\sqrt{n}}[/tex] = 84 ± 2.011 ×0.5

[tex]\overline{x}\pm t\times\frac{S}{\sqrt{n}}[/tex] = 84 ± 1.01

[tex]\overline{x}\pm t\times\frac{S}{\sqrt{n}}[/tex] = (84-1.01, 84+1.01)

[tex]\overline{x}\pm t\times\frac{S}{\sqrt{n}}[/tex] = (82.99, 85.01)

Lower confidence limit= 82.99

Upper confidence limit=85.01

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2, 5 are prime multiples of 10 .

What is a number's prime multiple?

What are multiples and prime factors?

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The amount of money saved from the marked down prices at the plant nursery is $7.46 .

Let the cost of the potted begonias be x.

They are marked down 27%

Price at which they are sold = 0.73 x

Therefore : 0.73x = 6.57 or, x = 9

Money saved = (9 - 6.57) × 2 = $4.86

Let the cost of the tomato be x.

They are marked down 35%

Price at which they are sold = 0.65 x

Therefore : 0.65x = 2.60 or, x = 4

Money saved = (4 - 2.60) × 3 = $4.20

Total money saved = $ (4.20 + 4.86 ) = $9.06

Discounts are price cuts made by store owners on goods or services that would otherwise be sold for the indicated price. Usually, this portion of the rebate is given to increase sales or get rid of extra inventory.

The List Price or Marked Price is the cost of a product as declared by the seller or manufacturer, exclusive of any discounts. The selling price is really the final price at which an item is sold after any discounts or price drops from the list price.

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Evan's total itemized deduction is found as $24,400.

Only if medical expenses exceed 7.5% of your AGI may they be written off:

$277,300 x 7.5% = $20,797.50

Medical expenses: = $29,000 - $20,797.50

Medical expenses = $8,202.50.

Evan can write off $8,700 in interest on a mortgage.

$5,000 is the maximum deduction for state plus local taxes for just a single filer.

Contributions to charities are also tax deductible up to $2,500

Deductions totaled = $8,202.50 + $8,700 + $5,000 + $2,500

Deductions totaled = $24,402.50

Thus, Evan's total itemized deduction is found as $24,400.

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As per the standard deviation, The B stock portfolio is more risk-efficient in simple words.

Standard deviation:

Basically, standard deviation means the  measure of how dispersed the data is in relation to the mean.

And the low standard deviation means data are clustered around the mean, and high standard deviation indicates data are more spread out.

Given,

A highly risk-averse investor is considering adding one additional stock to a 3-stock portfolio, to form a 4-stock portfolio. The three stocks currently held all have b = 1.0, and they are perfectly positively correlated with the market. Potential new Stocks A and B both have expected returns of 15%, are in equilibrium, and are equally correlated with the market, with r = 0.75. However, Stock A's standard deviation of returns is 12% versus 8% for Stock B.

Here we need to find in which stock should this investor add to his or her portfolio, or does the choice not matter.

Here we know that either of these shares would yield the same expected return for the entire portfolio if added to the same share of the portfolio.

So, if stock B is included in the portfolio, the expected standard deviation for the portfolio will be lower, since the standalone deviation is lower.

And therefore, lower risk or volatility, or standard deviation of the portfolio for the same level of the expected return on the new portfolio.

Therefore, the ratio of Sharpe to stock B will be higher. The B stock portfolio is more risk-efficient in simple words.

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The 3x3 matrix after composite transformation of scaling by 2, a rotation of 90° about origin is [tex]\left[\begin{array}{ccc}2c&2d&2i\\2b&2e&2h\\2a&2d&2g\end{array}\right][/tex].

Let A=[tex]\left[\begin{array}{ccc}a&b&c\\d&e&f\\g&h&i\end{array}\right][/tex] be a 3x3 matrix

scaling the matrix A by 2 then  the result will be

[tex]2A=2\left[\begin{array}{ccc}a&b&c\\d&e&f\\g&h&i\end{array}\right]\\\\=\left[\begin{array}{ccc}2a&2b&2c\\2d&2e&2f\\2g&2h&2i\end{array}\right][/tex]

now, rotating the resultant matrix by 90° in counterclockwise direction about the origin, we get

[tex]=\left[\begin{array}{ccc}2c&2d&2i\\2b&2e&2h\\2a&2d&2g\end{array}\right][/tex]

Thus, a 3x3 matrix after composite transformation of scaling by 2, a rotation of 90° about origin is [tex]\left[\begin{array}{ccc}2c&2d&2i\\2b&2e&2h\\2a&2d&2g\end{array}\right][/tex]

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~ xdisplay.promotion. This means that the promotion has a positive effect on unit sales, and the model can accurately predict unit sales based on whether the promotion is present or not.

Regression models are statistical models that are used to forecast a continuous result information based on one or more predictor variables. These models are employed to comprehend how the predictor and outcome variables relate to one another as well as to forecast the result variable. In disciplines like economics, finance, and psychology, regression models are frequently employed to forecast variables like future sales or psychological health. Regression models can be either linear or nonlinear, and they can also have numerous predictor variables. These models typically include an intercept and a slope for each predictor variable, which are used to calculate the predicted outcome.

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The correct justification for moving from step 3 to step 4 in victor's solution is A. division property of inequality

According to the division property of equality, if we divide an equation's two sides by the same number, the equation doesn't change.

Let's say you have two identically sized pizzas. You divide each one into halves and serve your buddies one half of each pizza. You will have equal pieces of both pizzas left over if you measure

as regards the Victor's problem division of both sides of the equation by 2 is achieved by the division property of inequality

Instance of division property of inequality dividing by 2

Step 3: 2x > 10

Step 4: x > 5

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The length of the fencing is 12 feet and the width of the fencing is 24 feet.

What is length and width?

The dimensions of length and width are crucial in the study of geometry because they help define the models.

Given in the question,

The width must be twice the length,

So, Let the length as L and and the width will be equal to 2L.

Total fencing = 72 feet.

Assuming the flower bed to be rectangular.

The total perimeter = 2(Length + width)

72 = 2(L + 2L)

72 = 6L

L = 12,

So length will be 12 feet,

And, width will be 2L = 24 feet.

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Answer:The zeros of a function f correspond to the x-intercepts of its graph. If f has a zero of odd multiplicity, its graph will cross the x-axis at that x value. If f has a zero of even multiplicity, its graph will touch the x-axis at that point.

120 pounds of the cheaper coffee should be use to get a mixture/blend that he would sell for $4 per pound.

An equation is an expression that can be used to show the relationship between variables and numbers.

Let x represent the amount of cheaper coffee.

Jalen has columbian coffee worth $3 per pound that he wishes to mix with 30 pounds of brazilian coffee worth $8 per pound to get a mixture/blend that he would sell for $4 per pound.

Hence:

3x + 8(30) = 4(x + 30)

3x + 240 = 4x + 120

x = 120

120 pounds of the cheaper coffee should be use

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Answer:

at an angle of 90° to a given line, plane, or surface.

"dormers and gables that extend perpendicular to the main roofline

Step-by-step explanation:

Answer:

deductive

Step-by-step explanation:

No, it is not possible to have a triangle with 3cm 5cm 8cm because the total of the triangle's two sides, 3 cm and 5 cm, is not greater than the third side, 8 cm.

A triangle is a polygon with three vertices and three sides. The angles of the triangle are formed by the connection of the three sides end to end at a point. The triangle's three angles add up to 180 degrees in total.

Given,

Sides 3cm, 5cm and 8 cm

Three sides are provided, measuring 3 cm, 5 cm, and 8 cm. We are aware that the third side is always greater than the sum of any two triangle sides. The triangle cannot exist because the total of the triangle's two sides, 3 cm and 5 cm, is not greater than the third side, 8 cm.

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Three consecutive even integers can be written with difference of two.

The even integers are defined as the numbers that are completely divisible by two. The complete division means that the result of division will be zero. The even integers are always present after a gap of one number in between.

This means that there is a difference of two numbers between integers. Firstly of all, the first even number is two. Following it four. There is a gap of number that is three. Hence, to find the consecutive even integers, add number two to the number.

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The sum of the first 30 terms of this arithmetic expression (A.P)  will be -30.

Let the first term of the Arithmetic progression be a

And the common difference of this progression be d

An be the nth term of the progression

Sn be the sum of the first nth term of the progression

As we know,

Sn = n/2( 2a + (n-1)d)

S11 = 11/2(2a + (11-1)d)

S11 = 11/2(2a + 10d) = 11(a + 5d)

As S11 = 19

Therefore, 19 = 11(a + 5d)

19 = 11a + 55d………….(i)

Again, S19 = 11 = 19/2 ( 2a + 18d )

11 =19( a + 9d)

11 = 19a + 171d………(ii)

Now, multiplying equation (i) by 19 and (ii) by 11 and then subtracting them, we get

361 = 209a + 1045d

121 = 209a + 1881d

240 = -836d

d = -240/836 = -60/209

Putting the value of d in equation (i), we get

11a - 55x60/209 = 19

11a = 3300/209 + 19

11a = 7271/209

a = 661/209

Therefore sum of first 30 terms are S30 = 30/2(2(661/209)+29(-60/209))

S30 = 15(1322/209 -1740/209) = 15 (-418/209) = 15(-2) = -30

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m mean slope in parallel lines and it is always same in two parallel lines.

Given:

Linear equations are generally described by the slope-intercept

represented by the equation y = mx+b

where m = slope

b = y-intercept.

In parallel lines:

Slope is always same means that two parallel lines have same slopes because those are not intersect at any point.

Example:

y = 3x + 4

here slope m = 3

The parallel line to this equation is also have the same slope.

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The histogram below shows the distribution of her 60 tip amounts for one day of work.

a) The distribution of tips is skewed right, whith a gap betwen 15 to 20 and a posible out lier at or above 20. The mean will be larger than the median, and the median will be in the $2,5 to $5 bar. Most tips are $5 or less, but there is some high variability with a range of $22.50.

b) The mean would increase because $18 is farther from the mean than $8. Also, more skew is added to the grapht $18 may be an out lier. This results in a larger mean.

The median: Should not change very much. The median is the average of the 30 th and 31st values, and a change in data value from $8 to $18 will not move the middle number.

Your question is incomplete, but most probably the complete question can be seen in the attachment.

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A power function is the function that is defined with equation consisting of one variable of a fixed power, where all the number and coefficients of the variables belong to real numbers.

Then, let f(x) be a function that defines the variable x;

say, f(x) = 4x³ + 5x² + 7x + 10.

For f(x) to be a power function; f(x) = xⁿ

Then f(x) is a power function with the highest power being 3 of the variable 'x'.

Linear and Quadratic equations are both power functions of power 1 and 2 respectively in the variable x.

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Using food labling :

The product contains 13 grams of total fat and 20 percent of the daily value. this means that

13 grams of fat provides 20% or one-fifth of the recommended total daily fat intake.

Food level :

food labels contain a lot of information about most packaged foods. Food labels are called "Nutrition Facts".itle or Job:

The US government requires food labels on most packaged foods. Labels provide complete, useful and accurate nutritional information. The government encourages food manufacturers to improve the quality of their products so that people can make healthier food choices.

Serving Sizes

Label serving sizes are based on the average amount of food people typically eat.

Label serving sizes are not necessarily healthy serving sizes.

Amount Per Serving

Total calories per serving are displayed in large print. This allows the consumer to count the number of calories per serving like total fat. Sodium; Total Carbs

PERCENT DAILY VALUE (% DAILY VALUE)

Many nutrients have a Percent Daily Value (%DV). This indicates how much each serving contributes to the total recommended daily intake of each nutrient. increase. This means that 13 grams of fat provides 20% or one-fifth of the recommended total daily fat intake.

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1) Given data information.

2) z = (Xcin -Xpit)/ (σ^2cin/n[tex]c_i_n[/tex] + σ^2pit/n[tex]p_i_t[/tex] ) ...(1)

3)   [tex]z = \frac{370-380}{\sqrt{\frac{30^2}{35} -\frac{26^2}{40} } } = -1.532[/tex]

    [tex]P_v[/tex] = 2 × P(Z < -1.532) = 0.126

4) Comparing the p value with the significance level α = 0.05 we see that

[tex]P_v[/tex] > α  so we can conclude that we have enough evidence to FAIL to reject the null hypothesis, and a wouldn't be a significant difference in the average of the two groups

Given,

In the question:

1) Data given and notation

[tex]X_c_i_n[/tex] = 370 represent the mean for the sample of Cincinnati

[tex]X_p_i_t[/tex] = 380represent the mean for the sample Pittsburgh

σ[tex]_c_i_n[/tex] = 30represent the population standard deviation for the sample Cincinnati

σ[tex]p_i_t[/tex] = 26 represent the population standard deviation for the sample Pittsburgh

[tex]n_c_i_n[/tex] = 35 sample size for the group Cincinnati

[tex]n_p_i_t[/tex] = 40 sample size for the group Pittsburgh

z would represent the statistic (variable of interest)

2) Concepts and formulas to use

We need to conduct a hypothesis in order to check if the means for the two groups are the same, the system of hypothesis would be:

Null hypothesis: μ[tex]c_i_n[/tex] = μ[tex]p_i_t[/tex]

Alternative hypothesis: μ[tex]c_i_n\neq[/tex] μ[tex]p_i_t[/tex]

We have the population standard deviation's, so for this case is better apply a z test to compare means, and the statistic is given by:

z = (Xcin -Xpit)/ (σ^2cin/n[tex]c_i_n[/tex] + σ^2pit/n[tex]p_i_t[/tex] ) ...(1)

z-test: Is used to compare group means. Is one of the most common tests and is used to determine whether the means of two groups are equal to each other.

3) Calculate the statistic

With the info given we can replace in formula (1) like this:

[tex]z = \frac{370-380}{\sqrt{\frac{30^2}{35} -\frac{26^2}{40} } } = -1.532[/tex]

4) Statistical decision

Since is a bilateral test the p value would be:

[tex]P_v[/tex] = 2 × P(Z < -1.532) = 0.126

Comparing the p value with the significance level α = 0.05 we see that

[tex]P_v[/tex] > α  so we can conclude that we have enough evidence to FAIL to reject the null hypothesis, and a wouldn't be a significant difference in the average of the two groups.

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There are [tex]\frac{60!}{57!}[/tex] ways we can do it.

Since organization has 60 members from which we haveto pick one person at random to be the president, another person to be the vice president and a third person to be the transformer,

the president can be select in 60c1 = [tex]\frac{60!}{1! 59!}[/tex]

                                                           = [tex]\frac{60 *59!}{1*59!}[/tex]

                                                           = 60 ways

After this for vice president we have 59 members from which vice president can be select in 59c1 = 59 ways.

and for treasure we have 58 members from which treasure can be select in 58c1 = 58 ways.

∴ No. of ways in which we can select president, vice president and treasure = 60 × 59 × 58

              =  [tex]\frac{60 * 59 * 58 * 57!}{57!}[/tex]

              =  [tex]\frac{60!}{57!}[/tex]

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Answer:

A=3

B=15

Step-by-step explanation:

Since these are equivalent ratios, there is a constant scale factor for each number. As shown in the 8 and 24, we find the scale factor to be 24/8=3. This means that the second ratio's numbers are 3x bigger than the  corresponding ones in the first ratio. A = 9/3 = 3, and B = 5*3=15

The findings indicate that just 11% of the world's population used air travel in 2018, with less than 4% of those trips being international. In developed nations alone, about half of the population travels by air at least once a year.

Believe it or not, less than 20% of people on the planet have ever taken a single trip. In Asia alone, 100 million individuals will take their first flight this year alone.

Keep in mind that flights more than 6 hours are considered long-range, while trips longer than 10 hours are also not unusual. In the event of unforeseen turbulence, it's crucial to always have your seat belt secured.

Flight durations during the duty periods are limited to a maximum of 8 hours for one-pilot flight crews and 10 hours for two-pilot flight crews. Any additional commercial flying that the flight crew does during the allotted 8 or 10 hours of flight time is included.

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The probability is 99.87 that the sample proportion will be greater than 0.74.

      z = (x - μ)/σ

μ = E(X)

σ = √V(X)

n = 400 ; p = 0.8

Thus,

μ = E(X) = np = 400 x 0.8 = 320

σ = √V(X) = √np(1 - p) = √(400 x 0.8 x 0.2) = 8

The probability that given sample proportion would be greater than 0.74.

= 74% of the 400

= 0.74 x 400 = 296

Thus, p -value when  x = 296

z = (x - μ)/σ

x = (296  - 320)/8

z = -3

p value = 0.0013

probability = 0.13

Thus,  greater than 0.74.

1 - 0.0013 = 0.9987

Thus, the probability is 99.87 that the sample proportion will be greater than 0.74.

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The solution is the degree of f(x) is at least 5.

Given info,

The polynomial f(x) has 5 intercepts.

The solution required,

The polynomial f(x) has 5 intercepts.

→ if the function has n intercept then the polynomial function has at least n degrees.

→ There is 5 intercept, then the polynomial function has at least 5 degrees.

→ The degree of f(x) is at least 5.

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