how is the accuracy rate calculated? how is the accuracy rate calculated? subtract the number of correct predictions from the total number of predictions. divide the number of true positives by the number of true negatives. divide the number of correct predictions by the total number of predictions. add the number of true positives and the number of false negatives.

Answer:

-1

Step-by-step explanation:

-1 is 11/12 at its simplest form

Answer:

distance between them is

\(8 \sqrt{5} \: units\)

Step-by-step explanation:

by distance formula ,

\( \sqrt{(6 - ( - 10)) {}^{2} + (10 - 2) {}^{2} } \)

Answer:

3/2

Step-by-step explanation:

Image a bit blurry, but I'm counting whoever wrote this was sane enough to pick integer values.

\(f(2) = 1; f(4)=4\)

Average rate of change is the difference in f divided by the difference in x:

\(\frac{\Delta f(x)}{\Delta x} = \frac{4-1}{4-2} = \frac32\)

The approximate change in z for the given change in the independent variables is 0.61.

To approximate the change in z for the given change in the independent variables, we can use differentials. The differential of z can be expressed as:

dz = (∂z/∂x)dx + (∂z/∂y)dy

First, let's find the partial derivatives (∂z/∂x) and (∂z/∂y) by taking the partial derivatives of the function z = x^2 - 7xy with respect to x and y, respectively.

∂z/∂x = 2x - 7y
∂z/∂y = -7x

Next, we'll substitute the values of x, y, dx, and dy into the differentials equation. Given that (x, y) changes from (5, 3) to (5.04, 2.97), we have:
x = 5
y = 3
dx = 0.04
dy = -0.03

Substituting these values into the equation dz = (∂z/∂x)dx + (∂z/∂y)dy, we get:

dz = (2(5) - 7(3))(0.04) + (-7(5))( -0.03)
= (10 - 21)(0.04) + (-35)( -0.03)
= (-11)(0.04) + (1.05)
= -0.44 + 1.05
= 0.61

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Answer:

si porq si porq si si dices si es si

\(\qquad \textit{Amount for Exponential Decay} \\\\ A=P(1 - r)^t\qquad \begin{cases} A=\textit{current amount}\\ P=\textit{initial amount}\dotfill &20000\\ r=rate\to 25\%\to \frac{25}{100}\dotfill &0.25\\ t=\textit{elapsed time}\dotfill &2\\ \end{cases} \\\\\\ A = 20000(1 - 0.25)^{2} \implies A=20000(0.75)^2\implies A = 11250\)

Answer:

8.5 and 10.5

Step-by-step explanation:

add your x1 and x2 coordinate and divide them by 2 to get your x.

and for the y add your y1 and y2 coordinate and divide them by 2 to get your y.

The x1, x2, y1, and y2 in this situation would be (5,14) (being the bridge)

and (12,7) being the castle.

x1 = 5

x2 = 12

y1 = 14

y2 = 7

The concept of "Gold status" is a reward for frequent travelers who accumulate a certain number of miles or flights with an airline. The benefits of Gold status often include perks like priority boarding, lounge access, and upgrades to first class.

In this scenario, we see that to qualify for Gold status at Awesome Airlines, one must fly at least 8400 and less than 35000 miles each year. This means that the airline values loyalty from customers who fly frequently but not excessively.

It's worth noting that airlines have different requirements for earning their respective statuses, and it's important for travelers to understand these requirements in order to plan their trips effectively. For example, some airlines may also consider the amount spent on tickets in addition to miles flown, while others may have different tiers beyond Gold status.

Ultimately, achieving Gold status can be a valuable goal for frequent travelers who want to enjoy the benefits and perks offered by the airline. By understanding the requirements and planning trips accordingly, travelers can work towards earning this coveted status and enhancing their travel experiences.

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On solving the provided question, we can say that  it has 0% prοbability, making the answer zerο (0).

Probability theοry, a subfield of mathematics, gauges the likelihοod of an occurrence or a claim being true. An event's prοbability is a number between 0 and 1, where apprοximately 0 indicates how unlikely the event is to occur and 1 indicates certainty. A prοbability is a numerical representation of the likelihood or likelihoοd that a particular event will occur.

In a deck of cards we have 4 kings. οne in each suit.

Tοtal number of cards in a pack 52.

There is οnly 4 king in a deck of cards, 10 kings are nοt possible.

This is impοssible event. Hence it has a probability zero(0).

The prοbability is 0.

Cοnsequently, it has 0% prοbability, making the answer zero (0).

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Complete question:

Integrating over the parameters ρ and θ, we have:

Φ = ∫[0 to 2π] ∫[2 to 7] (z) ρ dρ dθ

What is flux?

Flux is a concept in physics and mathematics that measures the flow or movement of a quantity across a surface or through a region. It represents the amount of a physical quantity (such as a vector field or energy) passing through a given area per unit of time.

To compute the flux of the vector field F = xi + yj + zk through the curved surface of the cylinder x^2 + y^2 = 9, bounded below by the plane x + y + z = 2 and above by the plane x + y + z = 7, and oriented away from the z-axis, we can use the surface integral.

The flux (Φ) through the surface S is given by the formula:

Φ = ∬_S F · dS

where F is the vector field, dS is the differential surface area vector, and the double integral is taken over the surface S.

First, let's parameterize the surface of the cylinder. We can use cylindrical coordinates (ρ, θ, z) with ρ = 3 as the radius and z ranging from 2 to 7.

ρ = 3

0 ≤ θ ≤ 2π

2 ≤ z ≤ 7

The normal vector to the surface S can be calculated using the gradient of the equation x + y + z = h, where h is either 2 or 7.

For the lower surface, h = 2:

∇(x + y + z) = ∇(2) = 0i + 0j + 1k

For the upper surface, h = 7:

∇(x + y + z) = ∇(7) = 0i + 0j + 1k

Now, let's calculate the flux through the surface:

Φ = ∬_S F · dS = ∬_S (xi + yj + zk) · (0i + 0j + 1k) dA

Since the normal vector is pointing in the positive z-direction, the dot product simplifies to F · dS = zk · dA.

dA = ρ dρ dθ

Φ = ∬_S zk · ρ dρ dθ

Integrating over the parameters ρ and θ, we have:

Φ = ∫[0 to 2π] ∫[2 to 7] (z) ρ dρ dθ

Now, we can evaluate this double integral to find the flux.

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Divide the numerator by the denominator to create a mixed number from an incorrect fraction. The mixed number is created after the division in such a way that the achieved quotient becomes the whole number, the leftover becomes the new numerator, and the denominator stays the same.

A mixed number is one that combines both a proper fraction and a full number. Mixed fractions are another name for mixed numbers.

A fraction that has the numerator higher than or equal to the denominator is said to be inappropriate. "Top-heavy" fractions are sometimes used to describe improper fractions.

Follow these procedures to convert a mixed number to an incorrect fraction:

1. Divide the entire number by the numerator.

2. Increase the numerator by that sum.

3. Add that total to the denominator from the previous step.

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Answer:

9 in

Step-by-step explanation:

We need to find x in x^3 > 600

For x=8, 8^3 = 512 < 600 (Too Small)

For x=9, 9^3 = 729 > 600 (Just right)

For x=10, 10^3 = 1000 > 600 (Too big)

Therefore, the smallest length of the cube-shaped box is 9 in.

The missing length is 7.5 cm.

What is a rectangular prism?

A three-dimensional solid form with six faces, including rectangular bases, is called a rectangular prism. A rectangular prism also refers to a cuboid. A cuboid and a rectangular prism have the same cross-section.

Here, we have

Let the missing length be x cm.

The formula for the surface area of a rectangular prism is:

SA = 2lw + 2lh + 2wh

We are given that the height and width are both 9 cm, so we can substitute those values and simplify:

432 = 2(x)(9) + 2(x)(9) + 2(9)(9)

432 = 18x + 18x + 162

432 - 162 = 36x

270 = 36x

x = 270/36

x = 7.5

Hence, the missing length is 7.5 cm.

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Explanation:

For any 45-45-90 right triangle, the hypotenuse H is always sqrt(2) times the leg L

In terms of symbols, we can say

\(H = L*\sqrt{2}\)

We're told the hypotenuse is e, so H = e

Let's solve for L in terms of e

\(H = L*\sqrt{2}\\\\e = L*\sqrt{2}\\\\L*\sqrt{2} = e\\\\L = \frac{e}{\sqrt{2}}\\\\\)

Now let's multiply top and bottom by \(\sqrt{2}\) to rationalize the denominator

\(L = \frac{e}{\sqrt{2}}\\\\L = \frac{e\sqrt{2}}{\sqrt{2}*\sqrt{2}}\\\\L = \frac{e\sqrt{2}}{\sqrt{2*2}}\\\\L = \frac{e\sqrt{2}}{\sqrt{4}}\\\\L = \frac{e\sqrt{2}}{2}\\\\\)

If the hypotenuse is e, then the length of each leg is \(\frac{e\sqrt{2}}{2}\)

This matches with choice C, which is one of the two answers. This allows us to rule out choices A and B, as those expressions are not equivalent to the expression for choice C.

----------------

The two legs of any right triangle form the base and height. The order doesn't matter. The base is always perpendicular to the height. In a right triangle, the two legs are always perpendicular.

The base and height are \(\frac{e\sqrt{2}}{2}\) each.

The area of the triangle is...

\(\text{Area} = \frac{1}{2}*\text{base}*\text{height}\\\\\text{Area} = \frac{1}{2}*\frac{e\sqrt{2}}{2}*\frac{e\sqrt{2}}{2}\\\\\text{Area} = \frac{e\sqrt{2}*e\sqrt{2}}{2*2*2}\\\\\text{Area} = \frac{e*e\sqrt{2*2}}{2*2*2}\\\\\text{Area} = \frac{e^2\sqrt{4}}{2*2*2}\\\\\text{Area} = \frac{e^2*2}{2*2*2}\\\\\text{Area} = \frac{e^2}{2*2}\\\\\text{Area} = \frac{e^2}{4}\\\\\)

This matches with choice E, which is the other answer. Choices D and F are eliminated as they are not equivalent to the expression for choice E.

The required points that are correct are the length of the leg is given as e√2/2 and the area of the triangle is given as e²/4. Options D and E are correct.

Given that,
An isosceles right triangle has a hypotenuse of length e.

In a right-angled triangle, its side, such as hypotenuse, perpendicular, and base is Pythagorean triplets.

Here,
Let the measure of the leg be x,
Apply Pythagoras' theorem,
e² = x ² + x²
e² = 2x²
x = √e²/2
x = e/√2
or
x = e√2/2

Now,?
area of the triangle is given as,
area = 1/2 × e/√2 ×e/√2
area = e² / 4

Thus, the required points that are correct are the length of the leg is given as e√2/2 and the area of the triangle is given as e²/4. Options D and E are correct.

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We can only draw this conclusion with a 90% degree of confidence.

a. Interpret the intervalThe interval is written as follows:(-4. 2, 3. 1)This is a 90% confidence interval for the difference between the mean ages of male and female statistics teachers. This interval is centered at the point estimate of the difference between the two means, which is 0.5 years. The interval ranges from -4.2 years to 3.1 years.

This means that we are 90% confident that the true difference in mean ages of male and female statistics teachers lies within this interval. If we were to repeat the sampling procedure numerous times and construct a confidence interval each time, about 90% of these intervals would contain the true difference between the mean ages.

b. Describe the conclusion about the difference between the mean ages that might be drawn from the intervalThe interval (-4. 2, 3. 1) tells us that we can be 90% confident that the true difference in mean ages of male and female statistics teachers lies within this interval. Since the interval contains 0, we cannot conclude that there is a statistically significant difference in the mean ages of male and female statistics teachers at the 0.05 level of significance (if we use a two-tailed test).

In other words, we cannot reject the null hypothesis that the true difference in mean ages is zero. However, we can only draw this conclusion with a 90% degree of confidence.

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A Chinese company employs 350 workers at a cost of $2.3 million

Where Total cost = $2.3 million

Number of workers = 350

The average pay made by each Chinese worker per year on a average is

The amount made by each Chinese worker per year on a average is $6571.43 (two decimal places)

The theorem (A) CPCTC represents the given condition of the triangle.

According to the formula CPCTC, which stands for "corresponding portions of congruent triangles are congruent," if two or more triangles are congruent, their corresponding angles and sides must also be congruent.

When demonstrating the congruence of triangles or other shapes, the term CPCT is employed.

When a student is asked to demonstrate that two angles or two sides are congruent, CPCTC is frequently employed at the end of the proof or close to it.

So, in the given triangle:

The angles are bold and the lines are not bold.

This represents that it is proved first that the angles are congruent.

And through CPCTC, we are concluding that the sides of the triangles are also congruent.

Therefore, the theorem (A) CPCTC represents the given condition of the triangle.

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Answer:

f(n) = 1

Step-by-step explanation:

Another answer for -3. FxN= -3

Therefore, 27/72 simplified to lowest terms is 3/8.

The differential equation for the family of curves that are perpendicular to the curve y^2 = 4x^3 is m^2 = 9x, where m represents the slope of the perpendicular curve.

To find the orthogonal trajectory of the curve represented by the equation y^2 = 4x^3, we need to determine the differential equation satisfied by the family of curves that are perpendicular to the given curve.

First, we find the derivative of the given equation implicitly with respect to x:

2y(dy/dx) = 12x^2

Next, we find the slope of the tangent line to the given curve by solving for dy/dx:

dy/dx = 6x^2 / y

To find the slope of the curve perpendicular to the given curve, we take the negative reciprocal of dy/dx. Let m be the slope of the perpendicular curve, then:

m = -y / (6x^2)

Now, we can write the differential equation for the orthogonal trajectory by replacing y with -6x^2/m:

(-6x^2/m)^2 = 4x^3

Simplifying the equation, we get:

36x^4 / m^2 = 4x^3

Rearranging the terms, we have:

m^2 = 9x

This is the differential equation satisfied by the orthogonal trajectories of the curve y^2 = 4x^3.

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Answer:

The sentance you but then would be than which would be Hay más mesas en la cocina que en mi habitación but the word then would be entonces and example sentance is entonces iré allí which is then i will go over there

and than is que, an example sentace en lugar de que yo vaya allí which is rather than me going over there

Step-by-step explanation:

Answer:

Hi Alycia! The answer to your question is Hay más mesas en la cocina que en mi habitación

Step-by-step explanation:

☆*: .｡..｡.:*☆☆*: .｡..｡.:*☆☆*: .｡..｡.:*☆☆*: .｡..｡.:*☆

☁Brainliest is greatly appreciated!☁

Hope this helps!!

- Brooklynn Deka

xD

Answer:

Part A: 100%
Part B: 50%

Step-by-step explanation:

The difference between 10 and 5 is 5

5 is 100% of 5, so 10 is 100% greater than 5 (part A)

5 is 50% of 10, so 5 is 50% less than 10 (part B)

Part A is 100%, and Part B is 50%

-Chetan K

Answer:

10 is 100% greater than 5

5 is 50% less than 10

Step-by-step explanation:

big brain

Answer:

5 ft

Step-by-step explanation:

not sure what the wuestion is but using the formula. A^2 + B^2 = C^2 we find that 100 / 4 = 25 and the square root of 25 is 5

the measure of the fourth interior angle of the quadrilateral is 68° (Option A)

To find the measure of the fourth interior angle of a quadrilateral, we need to use the fact that the sum of all interior angles of a quadrilateral equals 360°. Given that three interior angles measure 55°, 117°, and 120°, we can find the measure of the fourth angle by subtracting the sum of these three angles from 360°.
First, calculate the sum of the three given angles: 55° + 117° + 120° = 292°.
Next, subtract this sum from 360° to find the fourth angle: 360° - 292° = 68°

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The right angled triangle's side measures 19, its hypotenuse is approximately 8100.25.

Since a triangle has three sides and three vertices, it is a polygon. It is a fundamental geometric shape. Triangle ABC is the moniker given to a triangle that has vertices A, B, and C. When the three points are not collinear, a singular plane and triangle are found in Euclidean geometry. A triangle is a polygon if it has three sides and three corners.

given

Let's say we don't know the triangle's hypotenuse and that angle A is approximately 33.56.

Cos and Cos-1 are available. Make sure it is set to degrees.

Cos(33.56)=6750/h

h=8100.25

The right angled triangle's side measures 19, its hypotenuse is approximately 8100.25.

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The difference between the number of away fans at the semi-final and at the final exists 50.

When b does not equal 0, an ordered pair of numbers a and b, represented as a / b, is said to be a ratio. Two ratios are set to be equal in an equation called a proportion.

To determine how much larger one number is than the other, two numbers of the same unit are compared to determine their connection, which is known as a ratio.

When two quantities of the same unit are compared, the ratio is used to determine how much larger one quantity is than the other. If b is not equal to zero, it is expressed as a/b or a: b.

The number of away fans at the semifinal is

250 × 4/(6 + 4) = 250 × 4/10 = 100

(total number × ratio of a nay fans)

the number of away fans at the final is

500 × 3/(7 + 3) = 500 × 3/15 = 150

(total number × ratio of away fans)

The difference is 150 - 100 = 50

Therefore, the difference between the number of away fans at the semi-final and at the final exists 50.

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Answer:

4.7

Step-by-step explanation:

6.5-1.8= 4.7

Answer:

4.7

Step-by-step explanation:

substitute:

6.5 - 1.8

solve:

4.7

have a wonderful day <3