What would be the answer for 75 X 152

The reliability coefficient determined by the correlation between scores on half of the items on a measure with scores on the other half of the measure is called split-half reliability.

This method is commonly used to estimate the internal consistency of a measurement instrument. The measure is divided into two halves, and the scores on one half are compared to the scores on the other half using correlation analysis.

A high correlation indicates that the two halves of the measure are consistent and reliable in measuring the same construct. However, split-half reliability assumes that the two halves of the measure are equivalent and that the items are interchangeable, which may not always be the case. Other methods, such as Cronbach's alpha, may be used to assess reliability more accurately.

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Answer:

-3

Step-by-step explanation:

It's going down so it's negative and it's going down 3 units while going to the right 1 unit, so -3/1 = -3

It's pretty hard to see the slope from the pic so if i got it wrong srry

Answer:

-3

Step-by-step explanation:

The limit does not exist because the expression becomes unbounded as x approaches infinity.

The expression 2²+1 (x+3)(x-1)² can be simplified to (x²+3x+4)/(x²-2x+1). As x approaches infinity, the numerator approaches infinity. The denominator approaches infinity at a slower rate. Therefore, the expression becomes unbounded as x approaches infinity.

Here is a more detailed explanation of the expression and why the limit does not exist.

The expression 2²+1 (x+3)(x-1)² can be simplified to (x²+3x+4)/(x²-2x+1). The numerator, x²+3x+4, is a quadratic expression that opens up. This means that the value of the numerator will increase as x increases.

The denominator, x²-2x+1, is also a quadratic expression that opens up. This means that the value of the denominator will increase as x increases.

However, the value of the denominator will increase at a slower rate than the value of the numerator. This is because the coefficient of the x² term in the denominator is smaller than the coefficient of the x² term in the numerator.

As a result, the expression (x²+3x+4)/(x²-2x+1) will become unbounded as x approaches infinity. This means that the limit of the expression does not exist.

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Answer:

It depends on the type of function, but essentially the process is the same

Step-by-step explanation:

You gather up all of the y values and x values and plot them onto a coordinate grid. If you are using a calculator, go to the "y=" button and input the function and then hit "graph"

Answer:

F(-1,2), G(2,4), H(3,7)

Step-by-step explanation:

When you move left to right, it changes the x in (x,y)

When you move up and down, it changes the y in (x,y)

So, if it moves 1 unit to the left, the x decreases by 1

And if it goes 4 units up, the y increases by 4

Answer:

Step-by-step explanation:

Volume of cube = (length)(width)((height)

= √5 ⋅ √5 ⋅ √5

= 5√5 in³

:::::

Volume of enlarged cube = √10 ⋅ √10 ⋅ √10 = 10√10 in³

See the pattern?

:::::

If side length is √x:

Volume = √x ⋅ √x ⋅ √x

= x√x in³

The biggest named number that we know is googolplex, ten to the googol power, or (10)^(10^100). That's written as a one followed by googol zeroes.

Have a Merry Christmas!

The correct way to write 0.0000250 m in scientific notation is 2.5 · 10⁻⁵ m.

Scientific notation is a convenient way to write numbers that are very large or very small. A number written in scientific notation consists of a number greater than or equal to 1 but less than 10 multiplied by a power of 10. Here are some examples of numbers written in scientific notation:

Since you're given a number less than 1, move the decimal point to the right until you have a number between 1 and 10. Then, count the number of times you moved the decimal and write that as negative exponent over a base of 10. Finally, write out number multiplied by the power. You'll get 2.5 · 10⁻⁵ if you do those things correctly.

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Answer:

A. 2.50 Times. 10–5 m

Step-by-step explanation:

other one is wrong

The probability that the red die shows a three and the blue die shows a number greater than three is 1/12

From the question, we have the following parameters that can be used in our computation:

Red die

Blue die

The sample space of a die is

{1, 2, 3, 4, 5, 6}

using the above as a guide, we have the following:

P(3) = 1/6

P(Greater than 3) = 1/2

So, we have

P = 1/2 * 1/6

Evaluate

P = 1/12

Hence, the probability of a three and and a number greater than three is 1/12

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It's a Quadratic that doesn't have any real roots as the parabola doesn't cross the x-axis.

For graphing:

If you're familiar with the parabola of y=x^2, then you could graph that but just translate it upwards by +4 on the y such that f(x)+4 will be equal to it.

If you aren't, then we know the y-intercept is 4, and that's also the point of the minimum point of the curve. If I were you, I'd write a table of some of the integer values:

x y

-2 8

-1 5

0 4

1 5

2 8

The value of y is the same for x and -x as anything squared is positive.This means that there is a line of symmetry in the y-axis.

This then makes it much easier to graph, simply place these points on the graph and make sure the curve is exponential. This means the gradient (steepness) gets greater the bigger the value of x.

The odds that a woman will get divorced from her first marriage by the time she is 40 depend on various factors such as location, cultural norms, socioeconomic status, and individual circumstances.

Therefore, a specific value cannot be provided without more information about the population being studied.

However, according to statistics from the United States Census Bureau, the estimated probability of a first marriage ending in divorce by the 20th wedding anniversary is about 52%. This suggests that the odds of a woman getting divorced from her first marriage before age 40 are relatively high.

It's worth noting that divorce rates and probabilities can vary widely based on factors such as age, education level, income, and race/ethnicity. Additionally, divorce is a complex and often emotionally charged issue that is influenced by a wide range of individual and societal factors.

What is statistics?

Statistics is a branch of mathematics that deals with the collection, analysis, interpretation, presentation, and organization of data.

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The length of the movie screen at the local cinema is 37188552  feet.

Let's assume the width of the rectangle movie screen is represented by 'w' feet. According to the given information, the length of the screen is 303030 feet longer than the width. Therefore, the length can be expressed as 'w + 303030' feet.

The perimeter of a rectangle is given by the formula: 2(length + width). In this case, the perimeter of the movie screen is 148148148 feet. We can set up the equation as follows:

2(w + (w + 303030)) = 148148148.

Simplifying the equation, we have:

2(2w + 303030) = 148148148.

4w + 606060 = 148148148.

4w = 147542088.

Dividing both sides by 4, we get:

w = 36885522.

Therefore, the width of the screen is 36885522 feet. Since the length is 303030 feet longer than the width, we can calculate the length as:

Length = Width + 303030 = 36885522 + 303030 = 37188552 feet.

Hence, the length of the movie screen is 37188552  feet.

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The number of bags of fiber stuffing needed to fill the cones is 52 bags.

Given:

Height (h) = 10 inches

Radius (r) = 4 inches

To calculate the number of bags of fiber stuffing needed to fill the ice cream cones, we first need to calculate the volume of a single cone ( cone + hemisphere) using its height and radius.

The volume of a cone can be calculated using the formula:

= (1/3) πr²h

The volume of a hemisphere can be calculated using the formula:

= (2/3) πr³

Substituting these values into the formula, we can find the volume of a single cone:

V = (1/3) π × 4² × 10 + (2/3)π × 4³

V = 167.5 + 134.04

V = 301.54

V ≈ 167.5516 cubic inches (rounded to 4 decimal places)

Now, to determine the number of bags of fiber stuffing needed, we divide the total volume of the cones by the volume that can be filled by a single bag of fiber stuffing:

Number of bags = Total volume of cones / Volume filled by a single bag

Total volume of cones = Volume of a single cone x Number of cones

Total volume of cones = 167.5516 cubic inches x 125 cones

Total volume of cones ≈ 37692.66 cubic inches (rounded to 2 decimal places)

Number of bags = 37692.66 cubic inches / 720 cubic inches (per bag)

Number of bags ≈ 52 (rounded to nearest whole number)

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The most accurate description of the score for Jerry is B) it is below the mean.

If Peter's score is 5 points below the mean, Amy's score is 3 points above the mean, and Chris's score is 2 points below the mean, then the total of their scores is 4 points below the mean. Since Jerry is the fourth person in the sample, his score must be below the mean to compensate for the negative deviation of the other three scores. Therefore, option b is the most accurate description of Jerry's score. However, we cannot determine the exact value of Jerry's score without additional information about the mean and the scores of the other three individuals.

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Answer:

The roots are

\(x=-2+\dfrac{3}{2} \ i \ \ or \ \ x=-2-\dfrac{3}{2} \ i\)

Step-by-step explanation:

4x² + 16x + 25 = 0

Using the quadratic formula

That's

\(x=\dfrac{-b\pm\sqrt{b^2-4ac} }{2a}\)

From the question

a = 4 , b = 16 , c = 25

Substitute the values into the above formula and solve

We have

\(x=\dfrac{-16\pm\sqrt{16^2-4(4)(25)} }{2(4)}\)

\(x=\dfrac{-16\pm\sqrt{256-400} }{8}\)

\(x=\dfrac{-16\pm\sqrt{-144} }{8}\)

\(x=\dfrac{-16\pm12 \ i}{8}\)

Separate the real and imaginary parts

That's

\(x=\dfrac{-16}{8}\pm\dfrac{12}{8} \ i\)

\(x=-2\pm\dfrac{3}{2} \ i\)

We have the final answer as

\(x=-2+\dfrac{3}{2} \ i \ \ or \ \ x=-2-\dfrac{3}{2} \ i\)

Hope this helps you

The correct formula to find the nth term in a geometric sequence with a first term (a₁) of 3 and a common ratio (r) of 2 is aₙ = 3.2^(n-1).The correct answer is option D.

In a geometric sequence, each term is obtained by multiplying the previous term by a constant ratio. In this case, the first term (a₁) is 3, and the common ratio (r) is 2.

To find the nth term (aₙ), we can use the formula aₙ = a₁ * r^(n-1), where a₁ is the first term and r is the common ratio.

Plugging in the given values, we get aₙ = 3 * 2^(n-1), which simplifies to aₙ = 3.2^(n-1). Therefore, option D is the correct formula.

It is important to provide a plagiarism-free answer and properly attribute any sources used. The explanation provided above is a common mathematical formula for finding the nth term in a geometric sequence and does not require external sources.

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The probable question may be:

Which formula can be used to find the nth term in a geometric sequence where a_{1} = 3 and r=2?

A. a_{n} - 3 + 2(n - 1)

B. a_{2} - 3(n - 1) + 2

C. a_{3} = 3 ^ (n - 1) * 0.2

D. a_{n} = 3.2 ^ (n - 1)

This is an example of Cluster random sampling.

Cluster sampling refers to probability sampling when the population is divided into multiple smaller groups, also called clusters, and then further sampling is performed to check the data.

Here we can see that the principal had selected 222 boxes randomly over here. This implies that she had taken a group of boxes randomly. Then she proceeded to check every t-shirt in this box.

Therefore here we see that the population i.e the boxes were divided into smaller groups. The 222 boxes are the clusters here. Therefore we can conclude that the principal uses the cluster random sampling method.

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When analyzing Likert-scale data, which involves responses on an ordinal scale, several statistical analyses can be employed. Descriptive statistics summarize the data, providing an overview of central tendency (mean, median) and variability (standard deviation, range).

Frequency analysis displays the distribution of responses across categories. Chi-square tests examine whether there are significant differences in response distributions among groups. Non-parametric tests like Mann-Whitney U and Kruskal-Wallis can compare responses between groups. Factor analysis identifies underlying factors or dimensions in the data.

The choice of analysis depends on research questions, data characteristics, and assumptions. Consulting with a statistician is advised for selecting the appropriate analysis for a specific study.

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The inequality 4/3|1/4x+3|<4 are Ox>-13 and x < -11 or Ox<-24 and x > 0

We can begin by isolating the absolute value on one side of the inequality:

4/3|1/4x+3|<4

|1/4x+3|<3/2

We can then split this inequality into two cases, one for when 1/4x+3 is positive and one for when it is negative:

1/4x+3>0: 1/4x+3>3/2, so multiplying both sides by 4, we get x>-13 and x<-11

1/4x+3<0: 1/4x+3<-3/2, so multiplying both sides by -4, we get x<-24 and x>0

So, the solution is: Ox>-13 and x < -11 or Ox<-24 and x > 0

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Answer:

A and E

Step-by-step explanation:

Answer:

Please see below.

Step-by-step explanation:

I will be using * to express multiplication, and ^ to express squares.

A) Can you find the area of the shape?

Yes, we can.

We can simply multiply 5x - 3 by 2x, as seen below.

(2x)(5x - 3)

2x * 5x = 10x^2

2x * -3 = -6x

Area = 10x^2 - 6x

B) Can you find the perimeter of the shape?

Yes.

Because a rectangle has two sets of equal sides, we can merely multiply the two given measurements by two and add them together to find the perimeter.

2x * 2 = 4x

2(5x - 3) = 10x - 6

4x + 10x - 6 = 14x - 6

Perimeter = 14x - 6

C) If x = 2, what is the area of the shape?

We can just plug in 2 wherever our x shows up.

5x - 3 = 5 * 2 - 3 = 10 - 3 = 7

2x = 2 * 2 = 4

7 x 4 = 28

We can also use our previous formula from A.

10x^2 - 6x

10 * 2^2 - 6 * 2

10 * 4 - 12

40 - 12

28

Our area if 28 if x = 2

Please let me know if any of these are incorrect.

Answer:

y = f(x) = a + bx

Step-by-step explanation:

Step-by-step explanation: A linear function is a function of the form f(x) = ax + b, where a and b are real numbers. Here, a represents the gradient of the line, and b represents the y-axis intercept (which is sometimes called the vertical intercept).

The paint cans and the spaces serve as examples of equivalent ratios. 5.5 cans of paint will be required to cover 2200 sq. unit.

Two ratios that have the same values are said to be equivalent. The same number can be used to multiply or divide both sums to get an equivalent ratio. The method is the same as determining equivalent fractions. When two or more ratios are reduced to their most basic form, they have the same value. Examples of equivalent ratios are 1:2, 2:4, and 4:8. In their most basic form, all three ratios have the same value, which is 1:2. They are in proportion if two ratios are equal. Equations in algebra are said to be equivalent if their solutions or roots are equal. When the same amount or expression is added to or removed from both sides of an equation, the result is the same.

To paint a 2200 square unit space, 5.5 cans are required.

The given parameter is:

Cans: Area\(=1:400\)

Express as fraction

Cans/Area\(=1/400\)

Multiply both sides by Area

Cans\(=\frac{1}{400}*Area\)

When the area is 2200, we have:

Cans\(=\frac{1}{400}*2200\)

Cans\(=5.5\)

5.5 cans are therefore required to paint a 2200 units square space.

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The value of x is obtained as follows:

128º.

The measure of angle A is given as follows:

m < A = 132º.

For a parallelogram, the opposite angles are congruent, meaning that they have the same measure, hence the value of x is obtained as follows:

5x - 508 = x + 4.

4x = 512

x = 512/4

x = 128.

Then the measure of angle A is given as follows:

m < A = 5(128) - 508

m < A = 132º.

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Answer:(9,-3)

Step-by-step explanation:

You just have to flip the numbers

There were 7 number of pieces that were in the puzzle that took the child 30 seconds to complete,that can be found using the data given & the coordinates on the graph (7,30) which indicates the number of pieces as 7 and time as 30 sec.

What is data?

Data is the collected information that can be arranged and used for analysing or interpretation. The collected data is also called as raw data, which further needs to be arranged. The data can be represented visually, in tabular form , grouped or ungrouped form. Pictographs, bargraphs, box-whisker plot, line plot, histogram, pie chart are the visual representations.

Here given that the data is arranged in the form of graph containing x-axis & y-axis. Data collected/arranged represents the number of pieces contained in the puzzle & the time taken to solve it.

X-axis represents the number of pieces in the puzzle & Y-axis represents the time taken to complete that.

The points plotted on graph are:

(4,15): Number of pieces=4

         Time taken to complete=15 seconds

(5,15):Number of pieces=5

         Time taken to complete=15 seconds

(7,30): Number of pieces=7

         Time taken to complete=30 seconds

(8,25): Number of pieces=8

         Time taken to complete=25 seconds

(12,40): Number of pieces=12

         Time taken to complete=40 seconds

∴The puzzle that was completed by child in 30 seconds contained 7 pieces.

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Refer to the attachment for the graph.