During a class election 28 people voted for candidate A. If there were 64 votes total, what is the ratio of votes for candidate B compared to candidate A?

Answer:

The third option.

A linear regression model of the form Y = β0 + β1X + ε can be written as:

Yi = β0 + β1Xi + ei .

A linear regression model of the form Y = β0 + β1X + ε can be written as:

Yi = β0 + β1Xi + ei

Where ei is the residual for observation i. The plot of ei against Xi is known as a residual plot. The purpose of a residual plot is to check for non-linearity, unequal error variances, and outliers.

In this case, it appears that there is non-linearity present in the data. There appears to be a curved pattern in the residuals, suggesting that a linear regression model may not be the best approach to analyzing the relationship between Y and X. A transformation of the data, such as taking a logarithm of the variables, could potentially alleviate the non-linearity in the data.  This could potentially improve the fit of the linear regression model.

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The answer of the given question is positive linear relationship.

If the value of the sample covariance between the two random variables x and y equals 14.67, then we can conclude that x and y have a positive linear relationship.

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If the value of the sample covariance between the two random variables x and y equals 14.67, we can conclude that x and y have a positive linear relationship or association

Covariance measures the direction and strength of the relationship between two variables. A positive covariance indicates that as the values of x increase, the values of y tend to increase as well, and vice versa. In other words, there is a tendency for the variables to move in the same direction.

However, the value of covariance alone does not provide information about the strength or the exact nature of the relationship. To determine the strength and statistical significance of the relationship, additional analysis, such as calculating the correlation coefficient or performing hypothesis tests, may be necessary.

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Answer:

d: x less than -12

Step-by-step explanation:

negative times negative equals positive so 12 x 3 equals 36 + 12 = 48. Your welcome (pls give brainliest)

Answer:

3

Step-by-step explanation:

took the test

also parallelograms are the slanted ones so they dont  always have the 90 degree angles.

The non-necessary property of a parallelogram is All angles are right angles.

A parallelogram is a special type of quadrilateral that has both pairs of opposite sides parallel and equal.

GIven that, what can not be a property of parallelograms

All the properties given in the option are correct for a parallelogram, but the option saying all angles should be a right angle, is not a correct one, because it is not necessary for a parallelogram to have all four angles 90°, it is only in two types of special parallelograms, that are rectangles and squares.

Hence, the non-necessary property of a parallelogram is All angles are right angles.

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A z-score of 2.14 indicates that Katie's score on the test is quite high and unusual, and places her in the top 2% of the scores in the population.

Katie scored a 93 on a test and her calculated z score was 2.14, that means that her score is 2.14 standard deviations above the mean of the test scores.

A z score represents the number of standard deviations a data point is from the mean of the data set.

A positive z score means that the data point is above the mean, while a negative z score means that the data point is below the mean.

The mean of the test scores was, 80 with a standard deviation of 5, then Katie's z score would be calculated as:

z = (x - μ) / σ

= (93 - 80) / 5

= 2.6

Z scores are useful for comparing data points from different data sets or for comparing data points within the same data set that are measured on different scales.

Katie's score is 2.6 standard deviations above the mean.

A z score of 2.14 would mean that Katie's score is slightly below this value, but still significantly above the mean.

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Answer:

\( \rm \implies \frac{1}{3} (5x - 8) + \frac{2}{3} x \\ \\ \rm \implies \frac{5}{3} x - \frac{8}{3} + \frac{2}{3} x \\ \\ \rm \implies \frac{5x + 2x}{3} - \frac{8}{3} \\ \\ \rm \implies \frac{7x}{3} - \frac{8}{3} \\ \\ \rm \implies 2 \frac{1}{3} x - 2 \frac{2}{3} \)

The number of solutions which exist for the given equation is; Zero

The given equation is;

By expansion of the parenthesis;

Hence, since the Right side of the equation is not equal to the left side of the equation, we can conclude that the given equation has no solution.

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Answer:

60 slices

Step-by-step explanation:

Well, to start you must figure the amount of slices, to begin with. This is 9 x 8

this is = to 72.

Then you take 5/6 of 72/1 by multiplying across. to get 60

Answer: x = -5

Step-by-step explanation: The green x's represent positive x's, the yellow 1s represent positive numbers, and the red 1s represent negative numbers. So if you count everything your equation should look like 5x + 4 = -21. First you want to do the opposite of the plus 4, which is subtracting 4. That way the x is by itself on the left side of the equal sign. But what you do to one side you have to do to the other. So then you subtract 4 from -21. But because 21 is already negative it would equal -25. Now your equation should look like 5x = -25. Just divide by 5 for both sides and your x equals -5.

We can say with 95% confidence that the average yearly salary of top managers in the private sector is between $6,670 and $13,330 higher than the average yearly salary of top managers in the government sector.

The formula for calculating the confidence interval for the difference between two means where x1 and x2 are the sample means, s1 and s2 are the sample standard deviations, n1 and n2 are the sample sizes, t(a/2,n1+n2−2) is the t-distribution value for the desired confidence level and degrees of freedom, and t is the significance level (in this case, = 0.05).

Plugging in the values from the given data, we get:

(90−80)±(0.025,108)∗(6²/50+8²/60)¹/₂

Simplifying this expression, we get:

10±1.98∗1.634

Therefore, the 95% confidence interval for the difference between the average salaries of top managers in private and governmental organizations is:

(6.67, 13.33)

This means that we can be 95% confident that the true population parameter falls within this range.

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Complete Question:

In order to estimate the difference between the average yearly salaries of top managers in private and governmental organizations, the following information was gathered:

                                                               Private                              Government

Sample size                                                       50                                          60

sample mean                                                     90                                          80

Sample standard deviation                          6                                                8

Develop an interval estimate for the difference between the average salaries of the two sectors. Let alpha = .05.

There are approximately 63,063 ways to choose 16 croissants from the selection of 6 different types offered by the croissant shop.

To find the number of ways to choose 16 croissants from a selection of 6 different types, we can use the concept of combinations.

The formula for combinations is:

nCr = n! / (r! * (n-r)!)

where n is the total number of items to choose from, and r is the number of items to choose.

In this case, there are 6 different types of croissants, and we want to choose 16 of them. Therefore, we can calculate the number of ways to choose 16 croissants as follows:

6C16 = 6! / (16! * (6-16)!) = 6! / (16! * (-10)!) = 6! / (16! * 10!) ≈ 63,063

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The order of reaction has a linear curve when plotting concentration versus time is second, the correct option is C.

The Order of reaction refers to the relationship between the rate of a chemical reaction and the concentration of the species taking part in it. In order to obtain the reaction order, the rate expression (or the rate equation) of the reaction in question must be obtained.

We are given that;

The plot is between concentration versus time

The curve is linear

Now,

The strength of the rate of dependency on the reactant concentration determines the reaction's order. Which gives, the rate of a first-order reaction will depend on the concentration of a single species, a second-order reaction will undoubtedly depend on the concentration of two species;

\(rate = k{[A]^x + [B]^y}\)

Therefore, for the given reaction the answer will be second order.

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The equation of the circle is a way to represent the circle in the algebraic equation form.

The general form of the equation of the given circle is,

\(x^2+y^2+6x-24y+128&=0\)

Hence, the option C is the correct option.

The equation of the circle is the equation which is used to represent the circle in the algebraic equation form with the value of center point in the coordinate plane and measure of radius.

The standard form of the equation of the circle can be given as,

\((x-h)^2+(y-k)^2=r^2\)

Here (h,k) is the center of the circle and (r) is the radius of the circle.

Given information-

The center point of the given circle is \(A(-3,12)\).

The radius of the circle is 5 units.

The image of the circle attached below.

To find the equation of the circle, put the value of points and radius in the above form of equation of circle as,

\((x-(-3))^2+(y-12)^2=5^2\)

Solve the equation further as,

\(\begin{aligned}(x+3)^2+(y-12)^2&=5^2\\x^2+3^2+6x+y^2+12^2-24y&=25\\x^2+y^2+9+144+6x-24y&=25\\x^2+y^2+6x-24y+128&=0\\\end\)

Thus the general form of the equation of the given circle is,

\(x^2+y^2+6x-24y+128&=0\)

Hence, the option C is the correct option.

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Answer:  L isn't the midpoint of segment MN.

Step-by-step explanation:

NL+LM=NM

6x-5+2x+3=4x+9

8x-2=4x+9

8x-2+2=4x+9+2

8x=4x+11

8x-4x=4x+11-4x

4x=11

Divide both parts of the equation by 2:

2x=5.5

NL=6x-5

NL=(2x)(3)-5

NL=(5,5)(3)-5

NL=16.5-5

NL=11.5

LM=2x+3

LM=5.5+3

LM=8.5

NL≠LM

Hence, L isn't the midpoint of segment MN.

In summary, based on the given lengths and mathematical reasoning, we have determined that point L is the midpoint of segment MN because the lengths of NL and LM are equal when x = 2.

We must compare the lengths of the two segments NL and LM and see if they are identical in order to establish whether point L is the midpoint of segment MN.

NL = 6x - 5

LM = 2x + 3

The lengths of NL and LM ought to be equal if L is the middle of segment MN. To put it another way, NL and LM ought to be equal.

Constructing the equation

6x - 5 = 2x + 3

Now, solve for x:

6x - 2x = 3 + 5

4x = 8

x = 2

As soon as we know the value of x, we can put it back into the NL and LM formulas to get their lengths at x = 2:

NL = 6x - 5 = 6 * 2 - 5 = 12 - 5 = 7

LM = 2x + 3 = 2 * 2 + 3 = 4 + 3 = 7

The lengths of NL and LM are both 7 units.

Point L is in fact the middle of segment MN because both segments NL and LM have similar lengths.

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a) P20 is the 20th percentile, which separates the lowest 20% of the data from the highest 80%. To find P20, you would need to put the data in numerical order and find the value at the 20th percentile.

b) P67 is the 67th percentile, which separates the lowest 67% of the data from the highest 33%. To find P67, you would need to put the data in numerical order and find the value at the 67th percentile.

c) 34 is the 34th percentile, which separates the lowest 34% of the data from the highest 66%. It is the value at the 34th percentile

d) A boxplot is a graphical representation of a dataset that shows the minimum, first quartile, median, third quartile, and maximum of the data. To create a boxplot, you would need to put the data in numerical order, then calculate the minimum, first quartile (Q1), median (Q2), third quartile (Q3), and maximum of the data. These values are then plotted on a graph, with the box representing the interquartile range (Q3 - Q1) and the whiskers representing the minimum and maximum values. The outliers(if any) will be plotted as dots

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Houston to NY= 1608

NY to Chicago=802

Chicago to Houston=1067

Answer:

Try using GeoGebra it can help you!

Step-by-step explanation:

Answer:

the answer is (2,-2)

Step-by-step explanation: i just took the test

The type of number -1 is (A) counting and integer; (C) whole and rational; (D) rational and integer.

Given the number is -1.

It is clear that it has order so the number is counting.

It is a negative integer.

It is not fraction that is a whole number.

It can be expressed as -1/1 where denominator is not equal to 0 so it is Rational number.

But it is not natural number as natural starts from 1,2, ......

So the correct choices are (A), (C), (D).

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Answer:

y=x^2+2x−15

Step-by-step explanation:

Answer:

1. X-intercepts

2. Midpoint

3. Vertex

4. Y-Intercept

Step-by-step explanation:

Answer:

Step-by-step explanation:

Step-by-step explanation:

Option c, d,and f is correct

a) The function c(n) that determines your monthly cost (in dollars) in terms of the number of minutes, n, you spend making international phone calls can be defined as:

c(n) = 15 + 0.05n

In this equation, the fixed monthly fee of $15 is added to the product of the per-minute charge (0.05 dollars) and the number of minutes (n) spent on international phone calls.

b) The practical domain of this function is restricted to non-negative values of n since the number of minutes cannot be negative. Therefore, the domain of the function c(n) is n ≥ 0.

c) To calculate the value of c(13), we substitute 13 for n in the function:

c(13) = 15 + 0.05(13) = 15 + 0.65 = 15.65

Hence, c(13) equals $15.65.

d) In the context of this problem, c(13) represents the monthly cost (in dollars) incurred for making international phone calls when the number of minutes spent is 13. Since the function c(n) incorporates the fixed monthly fee of $15, c(13) provides the total cost considering both the fixed fee and the per-minute charge. In this case, with 13 minutes of international calls, the additional charge for those minutes amounts to $0.65, resulting in a total cost of $15.65 for the month.

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Answer:

69

Step-by-step explanation:

43 = 20 + z/3 - first, you need to subtract 20 from both sides

43 - 20 = z/3 → 23 = z/3 - then, multiply both sides by 3 to get z on its own

23 × 3 = z → z = 69

Hope this helps!

Answer:

z = 7.6

Step-by-step explanation:

43 = 20 + z/3

-z/3 = 20 - 43

-z = (20 - 43)/3

-z = -23/3

-z = -7.6

z = 7.6

Accoding to the calculations , the correct answer is:

A) Depreciation charge 16,000; revaluation surplus £20,000

According to IAS 16 Property, Plant and Equipment, the depreciation charge for an asset should be based on its carrying amount, useful life, and residual value.

In this case, the buildings were purchased for £400,000 (£480,000 - £80,000) and had a useful life of 25 years. Since there is no residual value, the depreciable amount is equal to the initial cost of the buildings (£400,000).

To calculate the annual depreciation charge, we divide the depreciable amount by the useful life:

£400,000 / 25 = £16,000

Therefore, the depreciation charge for the year ended 30 September 2021 is £16,000.

Now, let's calculate the balance on the revaluation surplus as at that date.

The revaluation surplus is the difference between the fair value of the property and its carrying amount. On 1 October 2020, the property was revalued to £500,000, and the carrying amount was £480,000 (£400,000 for buildings + £80,000 for land).

Revaluation surplus = Fair value - Carrying amount

Revaluation surplus = £500,000 - £480,000

Revaluation surplus = £20,000

Therefore, the balance on the revaluation surplus as at 30 September 2021 is £20,000.

Based on the calculations above, the correct answer is:

A) Depreciation charge £16,000; revaluation surplus £20,000

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Part A

y-intercept: 3

It represents that after 0 months practice, the number of matches won is 3.

Part B

slope intercept form: y = mx + b

Here to find slope,

take two points: (5, 12), (0, 3)

\(\sf slope: \dfrac{y_2-y_1}{x_2-x_1} = \dfrac{rise}{run}\)

\(\rightarrow \sf slope = \dfrac{3-12}{0-5} = 1.8\)

Equation:

y - y1 = m(x- x1)

y - 12 = 1.8(x - 5)

y = 1.8x - 9 + 12

y = 1.8x + 3

To find Matches won after 13 months

insert x = 13

y = 1.8(13) + 3

y = 26.4 ≈ 26 matches

The team could have won 26 matches after 13 months practice.

Answer:

See below ~

Step-by-step explanation:

Part A :

Part B :

Forming the equation :

Predicting how many matches can be won with 13 months of practice :

Answer:

The number of times a variable appears in a date set is called a constant.