what are the potential risks of a single large, comprehensive experiment in contrast to a sequential approach?

Answer:

YOu  are cooooooooooooooooooooooooooooooool

Step-by-step explanation:

The length of the line segment PQ to the nearest tenth is: 16.5\

The formula for the distance between two coordinates is given by:

D(x, y) = √[(y₂ - y₁)² + (x₂ - x₁)²]

In this question , we are given:

P(-10, 2) and Q(6, 6)

Thus:

PQ = √[(6 - 2)² + (6 + 10)²]

PQ = √(16 + 256)

PQ = √272

PQ = 16.49

To the nearest tenth gives:

PQ = 16.5

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Sal will pay to tile his entryway by calculating the area of the entryway in square feet and multiplying it by the cost of the tile per square foot.

To determine the cost of tiling Sal's entryway, we need to calculate the area of the floor plan. Since each unit length represents 1 foot, we can consider the dimensions of the floor plan in terms of feet. Let's say the length is 'L' feet and the width is 'W' feet. The area can be found by multiplying L by W, giving us the total area in square feet.

Once we have the area, we can multiply it by the cost per square foot, which is $1.15. This will give us the total cost of the tiles needed to cover the entryway.

It's important to note that rounding the final answer to the nearest cent is necessary to provide a precise cost value.

Therefore, by calculating the area of the entryway and multiplying it by the cost per square foot, we can determine the total amount Sal will pay to tile his entryway.

In conclusion, to calculate the cost, we need to find the area of the entryway by multiplying the length and width in units, convert it to square feet, and then multiply it by the tile cost per square foot.

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Answer:

7/2 pi

or approximately 10.99557429

Step-by-step explanation:

2 pi sqrt( a/b)

let a = 49 and b = 16

2 pi sqrt( 49/16)

We know that sqrt( a/b) = sqrt(a) /sqrt(b)

2 pi sqrt(49) / sqrt(16)

2pi ( 7) / (16)

2 pi ( 7/4)

7/2 pi

This is the exact answer

We can make an approximation for pi

Using the pi button on the calculator

10.99557429

The simplified expression in terms of sine and cosine is:
\(cos(y) + \frac{1}{(cos(y)+1) }- \frac{sin(y)^2}{(cos(y)+1)}\)

To simplify the expression (1+cos(y))/(1+sec(y)), we need to rewrite sec(y) in terms of cosine and simplify. Recall that sec(y) = 1/cos(y). Substituting this in, we get:

\(\frac{(1+cos(y))}{(1+sec(y))} =\frac{ (1+cos(y))}{(1+1/cos(y))}\)

Now we need to get a common denominator in the denominator of the fraction. Multiplying the second term by cos(y)/cos(y), we get:

\(\frac{(1+cos(y))}{(1+1/cos(y))} =\frac{ (1+cos(y))}{(cos(y)/cos(y) + 1/cos(y))} = \frac{(1+cos(y))}{((cos(y)+1)/cos(y))}\)
Next, we invert the denominator and multiply by the numerator to simplify:

\(\frac{(1+cos(y))}{((cos(y)+1)/cos(y)) }= \frac{(1+cos(y)) * (cos(y)}{(cos(y)+1))} = cos(y) + cos(y)^2 / (cos(y)+1)\)

Finally, we can simplify further using the identity cos(y)^2 = 1 - sin(y)^2, which gives:

\(cos(y) + cos(y)^2 / (cos(y)+1) = cos(y) + (1-sin(y)^2)/(cos(y)+1)\)
Combining the terms, we get:

\(\frac{(1+cos(y))}{(1+sec(y))} = cos(y) + (1-sin(y)^2)/(cos(y)+1)\\\\ = cos(y) + 1/(cos(y)+1) - sin(y)^2/(cos(y)+1)\)

Therefore, the simplified expression in terms of sine and cosine is:

\(cos(y) + \frac{1}{(cos(y)+1) }- \frac{sin(y)^2}{(cos(y)+1)}\)

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9514 1404 393

Answer:

  D.  $101,000 – $120,000

Step-by-step explanation:

The bar graph is not completely labeled, but in the context of the question it seems safe to assume that the vertical scale can be considered to represent relative frequency.

So, the shortest bar is the one with the lowest frequency. The horizontal scale identifies that as 101-120. If we assume that is salary in thousands of dollars, then Choice D is appropriate.

Answer:

-2

Step-by-step explanation:

Answer:

14.82 km

Step-by-step explanation:

Answer:

5

Step-by-step explanation:

Because -5 is a negative number and the opposite of negative is positive and 5 is positive.

Final Answer: \(5\)

Steps/Reasons/Explanation:

Write down \(-5 + x = 0\) because this is our equation with \(-5\) plugged in to get an additive inverse. We will have to add \(5\) to both sides. This means our additive inverse is positive \(5\).

Question: Which number is the additive inverse of \(-5\)?

\(-5 + x = 0\)

Step 1: Regroup terms.

\(x - 5 = 0\)

Step 2: Add \(5\) to both sides.

\(x = 5\)

~I hope I helped you :)~

Answer:

12123

Step-by-step explanation:

Answer:

A.) -3.396

Step-by-step explanation:

On edg ;)

Answer:

5 years old

Step-by-step explanation:

Ravi = x

x + 15 = 4x

-3x = -15

x = 5

Answer:

5

Step-by-step explanation:

Ravi's age is x.  Fifteen years plus x will equal four times x.

15 + x = 4x

(15 + x) - x = 4x - x

15 = 3x

15/3 = (3x/3)

5 = x

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\(y = 8 - x\)

\(y = - x + 8\)

\(y = - 1x + 8\)

\(Slope = coefficient \: \: of \: \: x \)

Thus :

\(Slope = - 1\)

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Answer:

E no is the correct answer

Answer:

x^2+7x=30

x^2+7x-30=0

Here a=1,b=7 and c=-30

Now,

Discriminant(D)=b^2-4ac

=7^2-4×1×(-30)

=49+120=169

By applying Quadratic formula

x=-b+- root over b^2-4ac÷2a

=-7+- root over D ÷ 2×1

=-7 +- root over 169 ÷2

=-7 +- 13 ÷2

Now,

Either x=-7+13÷2=6÷2=3

Or x=-7 -13 ÷2=-20÷2=-10

Hence, ans is (C) x=-10 and x=3

Point D is 1/n of the way from point C to point E. To find the coordinates of point D, we need to determine the fraction of the distance from C to E that D represents.

Given that n = 5, D is 1/5 of the way from C to E.
To find the coordinates of D, we can use the following formula:
x D = x C + (1/n) * (x E - x C)
y D = y C + (1/n) * (y E - y C)
Plugging in the values, we have:
x D = -2.5 + (1/5) * (5 - (-2.5))
y D = 1.25 + (1/5) * (15 - 1.25)
Simplifying the equations:
x D = -2.5 + (1/5) * 7.5
y D = 1.25 + (1/5) * 13.75
Calculating:
x D = -2.5 + 1.5 = -1
y D = 1.25 + 2.75 = 4
Therefore, the coordinates of point D when n = 5 are (-1, 4).
The coordinates of point D when n = 5 are (-1, 4).
To find the coordinates of point D, which is 1/n of the way from point C to point E, we use the formula xD = xC + (1/n) * (x E - x C) and y D = y C + (1/n) * (y E - y C).
In this case, n = 5. The x-coordinate of point C is -2.5, and the x-coordinate of point E is 5. Plugging these values into the formula, we have:
x D = -2.5 + (1/5) * (5 - (-2.5))
Simplifying, we get:
x D = -2.5 + (1/5) * 7.5
Calculating, we find:
x D = -2.5 + 1.5
x D = -1
Similarly, the y-coordinate of point C is 1.25, and the y-coordinate of point E is 15. Plugging these values into the formula, we have:
y D = 1.25 + (1/5) * (15 - 1.25)
Simplifying, we get:
y D = 1.25 + (1/5) * 13.75
Calculating, we find:
y D = 1.25 + 2.75
y D = 4
Therefore, the coordinates of point D when n = 5 are (-1, 4).
When n = 5, the coordinates of point D, which is 1/5 of the way from point C to point E, are (-1, 4).

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The students who has the method that is most representative of the school’s population is Amir.

Population refers to the group of people being studied in an experiment or the group from which a sample is drawn.

Amir has the method that is most representative of the school’s population because the method includes all students in the school studying different subjects but picked at random (every tenth students)

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The value of the yakubu and bello business is N80,000.

Let's start by determining the original value of Yakubu and Bello's shares in the business before the sale took place.

The ratio of their shares is given as 3:5, which means Yakubu owns 3 parts and Bello owns 5 parts out of a total of 3+5 = 8 parts.

Now, let's assume the value of the business is represented by "V" (to be determined).

Since Yakubu later sold 3/4 of his share to Bello, this means he sold 3/4 * 3 = 9/4 parts of the business to Bello.

The value of 9/4 parts of the business is N180,000, so we can set up the following equation:

(9/4) * V = N180,000

To solve for V, we multiply both sides of the equation by 4/9:

V = (4/9) * N180,000

V = N80,000

Therefore, the value of the business is N80,000.

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Answer: 15

Step-by-step explanation:

The answer is because if you divide 14,130 by 3.14. You'll get 4500 and then divide that by 300 and your finally is 15

The radius of the inflated beach ball is equal to 58 inches.

Surface Area of a Sphere. A = 4 π r². The volume of a Sphere. V = (4 ⁄ 3) π r³. Where r is the radius of the circle.

Given: The volume of the sphere is 14,310 inches³

we know the volume of the sphere is  4/3 πr³

Thus equating we get

4/3 × 3.14×r³=14310

r³=3417.99

r³=3418

r=58.463 or 58 (approx)

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Answer:

Cost of the refill mug = $8.95

Cost of each refills = $1.50

Sean bought a mug for $8.95

No. of refills he bought = (26.95 – 8.95)/1.50

= 18 /1.50

= 12

The sampling described in this study is simple random sampling.

This is because the mayor's assistant randomly selected 100 households from the population.

Simple random sampling is a type of probability sampling method in which each member of the population has an equal chance of being selected for the sample.

This method is often used to ensure that the sample is representative of the population, and that the results of the study can be generalized to the entire population.

In this case, since the households were selected randomly, we can assume that the results obtained from the 100 households are representative of the opinions of the entire population of the town.

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Part c: -3x + 5 + 5x - 1 = 0;  x = 2 is incorrect.

Part d: -(x -1) = 4x -5 - 3x ; x = 3 is correct.

For the given equations,

Part c: -3x + 5 + 5x - 1 = 0.

Simplify the equation.

-3x + 5 + 5x - 1 = 0

2x + 4 = 0

x = -4/2

x = -2

Thus, the given value x = 2 is incorrect.

Part d: -(x -1) = 4x -5 - 3x

Simplify the equation.

-(x -1) = 4x -5 - 3x

-x + 1 = x - 5

2x = 6

x= 3

Thus, the given value x = 3 is correct.

Thus, the given conditions for the equation is found.

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The set of data that provides the clearest difference between the two samples is option (c): One sample has M = 20 with s2 = 10 and the other has M = 30 with s2 = 10. The reason is that the standard deviation is higher in both samples compared to the other options, and the means of the two samples are also relatively far apart, making the difference between the two samples clearer. I

n options (a) and (b), the means are not far enough apart to provide a clear difference, and in option (d), while the means are farther apart than in option (b), the standard deviation is the same, which makes the difference less clear.

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The answers, rounded to the appropriate number of significant figures, are as follows:

(a) 1.088 ×\(10^2\)

(b) 2.132

(c) 1.3331 ×\(10^1\) and

(d) 1.05.

Let's calculate the answers to the given operations using the appropriate number of significant figures.

(a) 8.370×1.3×10

To perform this multiplication, we multiply the decimal numbers and add the exponents of 10:

8.370 × 1.3 × 10 = 10.881 × 10 = 1.0881 × \(10^2\)

Since the original numbers have four significant figures, we round the final answer to four significant figures:

1.088 × \(10^2\)

(b) 4.265/2.0

For division, we divide the decimal numbers:

4.265 ÷ 2.0 = 2.1325

Since both numbers have four significant figures, the answer should be rounded to four significant figures:

2.132

(c) (1.2588×\(10^3\))×(1.06×\(10^-^2\))

To multiply these numbers, we multiply the decimal numbers and add the exponents:

(1.2588 × \(10^3\)) × (1.06 × \(10^-^2\)) = 1.333128 × \(10^1\)

Since the original numbers have five significant figures, we round the final answer to five significant figures:

1.3331 × \(10^1\)

(d) \((1.11)^(^1^/^2^)\)

To calculate the square root, we raise the number to the power of 1/2:

\((1.11)^(^1^/^2^)\)= 1.0524

Since the original number has three significant figures, the answer should be rounded to three significant figures:

1.05

It's important to note that the significant figures in a result are determined by the original data and the operations performed. The final answers provided above reflect the appropriate number of significant figures based on the given information and the rules for significant figures.

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Step-by-step explanation:

\(x_{1,\:2}=\frac{-6\pm \sqrt{6^2-4\cdot \:1\cdot \left(-16\right)}}{2\cdot \:1}\\\sqrt{6^2-4\cdot \:1\cdot \left(-16\right)}\\\sqrt{6^2+64}\\\sqrt{36+64}\\\sqrt{100}\\\sqrt{10^2}\\=10\\x_1=\frac{-6+10}{2\cdot \:1},\:x_2=\frac{-6-10}{2\cdot \:1}\\\\\bold{x_1:2}\\\frac{-6+10}{2\cdot \:1}\\\frac{4}{2\cdot \:1}\\\frac{4}{2}\\=2\\\\\bold{x_2:-8}\\\frac{-6-10}{2\cdot \:1}\\\frac{-16}{2\cdot \:1}\\\frac{-16}{2}\\-\frac{16}{2}\\=-8\)

Answer:

x₁ = 2

x₂ = -8

Answer:

it represents the term of the equation

4/7 is probability a two-way table to model this chance process.

What are examples and probability?

A number between 0 and 1 is the probability of an event, where, broadly speaking, 0 denotes the event's impossibility and 1 denotes its certainty.

                                The likelihood of an event occurring increases as its probability increases. The flip of a fair (impartial) coin serves as a straightforward illustration.

No events getting thick crust pizza and getting pizza with mushrooms are not disjoint as we can have pizza that has thick crust and mushroom both.

No events are not independent as

P(thick and having mushroom) is not equal to P(thick crust)*P(having mushroom)

P( thick and having mushroom) = 2/7

P(thick crust) = 3/7

P( having mushroom) = 4/7

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Answer:

Your answers D

Step-by-step explanation:

The probability that among 7 randomly selected graduates, at least one finds a job in his or her chosen field within a year of graduating​ is 0.9963, if a study conducted at a certain college showed that 55% of the schools graduates find a job in their chosen field within a year after graduation.

As mentioned in the question statement, a study conducted at a certain college shows that 55% of the schools graduates find a job in their chosen field within a year after graduation.

Therefore, probability of finding a job in their chosen field within a year after graduation, P(Finding a job) = \(\frac{55}{100}=0.55\).

Then, probability of not finding a job in their chosen field within a year after graduation, P(Not finding a job) = [1 - P(Finding a job)] \(=(1-0.55)=0.45\).

Therefore, probability that no one finds a job among seven random people = [ {P(Not finding a job)} ^ 7] = \((0.45)^{7} = 0.0037\).

Finally, probability that at least one finds a job among seven random people = [1 - {P(Not finding a job) ^ 7}] = \((1-0.0037)=0.9963\).

Hence, The probability that among 7 randomly selected graduates, at least one finds a job in his or her chosen field within a year of graduating​ is 0.9963, if a study conducted at a certain college showed that 55% of the schools graduates find a job in their chosen field within a year after graduation.

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