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Answer:

Step-by-step explanation:

3/9 can be a rational number.

Let me show you:

The Answer and/or 1 : 3 or 3 : 9.

The relationship between a statistic and a parameter is the same as the relationship between , Option(A) a sample and a population

The Population is defied as an entire group of individuals that we are interested in studying, while a sample is a subset of that population that we actually observe and collect data from.

A Parameter is defined as a numerical characteristic of a population, such as its mean or variance, whereas a statistic is a numerical characteristic of a sample, such as its sample mean or sample standard deviation.

The relationship between a sample and a population is similar to the relationship between a statistic and a parameter because a sample is used to estimate  information about the population, and a statistic is used to estimate  information about a parameter.

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Answer:

9 5/9 also 86/9

9 2/5 also 47/5

5 2/9 also 47/9

2 5/9 also 23/9

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Answer:

V = 1072.3 cm³

Step-by-step explanation:

Volume of a hemisphere = \(\frac{2}{3} \pi r^3\) [Because it's half of a sphere's volume]

V = \(\frac{2}{3} (3.14)(8)^3\)

V = \(\frac{2}{3} (3.14)(512)\)

V = \(\frac{3216.99}{3}\)

V = 1072.3 cm³

Step-by-step explanation:

\(f(x) = ln( \frac{1}{x} ) \)

To find the derivative, notice we have a function 1/x inside of another function, ln(x)

We use what we call the chain rule,

It states that

derivative of a '

\( \frac{d}{dx} f(g(x)) = f '(g(x)) \times \: g '(x)\)

Here f is ln(x)

f is 1/x

So first, we know that

\( \frac{d}{dx} ( ln(x) = \frac{1}{x} \)

so

\(f'(g(x)) = \frac{1}{ \frac{1}{x} } \)

We know that

\(g'(x) = - \frac{1}{ {x}^{2} } \)

So we have

\(x \times - \frac{1}{ {x}^{2} } = \frac{ - 1}{x} \)

Answer:

isosceles triangle

Step-by-step explanation:

I'm pretty sure it's the last option, but don't count me on that.

Answer:

6.25 hours

Step-by-step explanation:

pages per hour

pages/hour

90/2.5 = 36

36 pages per hour

225 / 36 = 6.25 hours

Answer:

6.25 hours

Step-by-step explanation:

2 and half hours = 2.5 hours

Proportions:

90 pages  ⇔  2.5 hours

225 pages  ⇔  E hours

E = 225*2.5/90

E = 6.25 hours

6.25 hours = 6 and 1 quarter hours

Answer:

55x

Step-by-step explanation:

Answer:

x = 6

y = -4

Step-by-step explanation:

jgcjgcgcjgcjchggfjcjjcggcjcgjcjgcgjcgj

Answer:

y = 8x +2 that's the correct answer

Answer:

-14r/5 thats the answer I got

To determine the distance between the buildings, we can use trigonometry and the given information. Let's consider the triangle formed by Sari, building A, and building B. The side opposite the 40° angle is the distance between the buildings that we want to find.

Using the tangent function, we can set up the following equation: tan(40°) = opposite/adjacent. tan(40°) = distance between the buildings/20 meters. To find the distance between the buildings, we rearrange the equation: distance between the buildings = 20 meters * tan(40°). Using a calculator, we can evaluate the expression: distance between the buildings ≈ 20 meters * 0.8391 ≈ 16.782 meters. Therefore, the buildings are approximately 16.782 meters apart. To determine the distance between the buildings, we can use trigonometry and the given information. Let's consider the triangle formed by Sari, building A, and building B. The side opposite the 40° angle is the distance between the buildings that we want to find.

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The surfaces described by the given vector equations are:

1.The surface is a hyperbolic paraboloid.

2.The surface is a part of a cylinder with radius 3 and axis parallel to the y-axis.

3.The surface is a plane parallel to the xy-plane and shifted upwards by 1 unit.

4.The surface is a twisted cylinder along the y-axis.

A vector equation of a surface in three-dimensional space is a function that maps a pair of parameters, say u and v, to a three-dimensional point in space (x, y, z) represented as a vector. The vector equation can be written in the form of r(u, v) = <x(u, v), y(u, v), z(u, v)>.

In general, there are different ways to represent the same surface using vector equations. For example, the surface of a sphere of radius r centered at the origin can be represented by the vector equation r(u, v) = <r sin(u) cos(v), r sin(u) sin(v), r cos(u)>, where u is the polar angle (measured from the positive z-axis) and v is the azimuthal angle (measured from the positive x-axis).

Vector equations can be useful in studying the geometry and properties of surfaces, such as determining their tangent planes, normal vectors, curvature, and surface area. They can also be used to parametrize surfaces for numerical calculations and simulations.

The surfaces described by the given vector equations are:

1.The surface is a hyperbolic paraboloid.

2.The surface is a part of a cylinder with radius 3 and axis parallel to the y-axis.

3.The surface is a plane parallel to the xy-plane and shifted upwards by 1 unit.

4.The surface is a twisted cylinder along the y-axis.

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The identity can be proven using the identity: tan (A + B) = (tan A + tan B)/(1 - tan A tan B).

The identity "tan (x-y) + tan (y-z) + tan (z-x) = tan (x-y) tan (y-z) tan (z+x)" is not true for all values of x, y, and z. This is because the tangent function is not one-to-one, meaning that different inputs can result in the same output, and it can also be undefined for some inputs.

The identity can be proven true only in certain special cases where the tangent function is defined and one-to-one. For example, if x, y, and z are chosen such that x, y, and z are all acute angles, the identity can be proven using the identity: tan (A + B) = (tan A + tan B)/(1 - tan A tan B)

where A and B are angles.  Let's start with the definition of tangent:

tan A = sin A/cos A

Similarly,

tan B = sin B/cos B

Now, we can use the sum formula for sine and cosine:

sin (A + B) = sin A cos B + cos A sin B

cos (A + B) = cos A cos B - sin A sin B

Dividing the above two equations, we get:

tan (A + B) = (sin A cos B + cos A sin B) / (cos A cos B - sin A sin B)

Using the definition of tangent, we can simplify the above expression:

tan (A + B) = (tan A + tan B) / (1 - sin A sin B/cos A cos B)

Since sin A/cos A = tan A and sin B/cos B = tan B, we can simplify further:

tan (A + B) = (tan A + tan B) / (1 - tan A tan B)

However, this proof is quite involved and beyond the scope of this answer.

In general, it is recommended to use other methods, such as graphical visualization or trigonometric identities, to solve problems involving the tangent function.

Therefore, The identity can be proven using the identity: tan (A + B) = (tan A + tan B)/(1 - tan A tan B).

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Answer:

There are 0.475 pounds of apples in each tart.

I arrived in this number by dividing the total number of pounds by the total number of tarts made.

475 pounds divided by 1000 tarts is equal to 0.475 pounds per tart.

475 lbs/1000 tarts = 0.475 lbs/tart

So, if you are to bake a certain number of tarts and need to know the total number of pounds of apple needed to bake you can use this equation.

y = 0.475x

where y represents the total number of pounds needed to bake x number of tarts with a fixed 0.475 pounds per tart.

Step-by-step explanation:

4Th option is correct ✔️ ✔️

Answer:

Maybe Option D but I'm not sure

Answer:

75 miles

Step-by-step explanation:

You have to just multiply 15 by 5.

1*5 inches=15*5 miles

The statement If a simple random sample is chosen with replacement, each individual has the same chance of selection on every draw is True.

If a simple random sample is chosen with replacement, it means that after each selection, the chosen individual is placed back into the population before the next selection is made. In this case, each individual in the population has the same chance of being selected for every draw.

The process of replacing the selected individual ensures that the selection probabilities remain constant throughout the sampling process. As a result, each individual has an equal probability of being chosen on each draw, making the statement true.

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The estimated median price of a single-family home in Charleston/No. Charleston in the 1st Quarter of 2008 is $201,048. If the median price continues to decrease at the same rate for the next two years, the estimated median price of a single-family home in the 1st Quarter of 2011 would be $144,458.

(a) To estimate the median price of a single-family home in the 1st Quarter of 2008, we need to calculate the original price before the 8.15% decrease. Let's assume the original price was P. The price after the decrease can be calculated as P - 8.15% of P, which translates to P - (0.0815 * P) = P(1 - 0.0815). Given that the end of 1st Quarter of 2009 median price was $184,990, we can set up the equation as $184,990 = P(1 - 0.0815) and solve for P. This gives us P ≈ $201,048 as the estimated median price of a single-family home in the 1st Quarter of 2008.

(b) If the median price of a single-family home falls at the same rate for the next two years, we can calculate the price for the 1st Quarter of 2011 using the estimated median price from the 1st Quarter of 2009. Starting with the median price of $184,990, we need to apply an 8.15% decrease for two consecutive years. After the first year, the price would be $184,990 - (0.0815 * $184,990) = $169,805.95. Applying the same percentage decrease for the second year, the price would be $169,805.95 - (0.0815 * $169,805.95) = $156,012.32. Therefore, the estimated median price of a single-family home in the 1st Quarter of 2011 would be approximately $144,458.

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Answer:

Step-by-step explanation:

Answer:

13 years

Step-by-step explanation:

Intuition for how sons can collectively win after a certain period of time:- After a certain period of time the father's age will increase by that certain period of time (say 5 years) but for the sons (since there are 3 of them) their collective age will increase by three times that of their father (5 for each 1 one them). Therefore there exist a time after which collective increase in sons' age can cover the current gap of 13 years.

In a transformation called a translation, the pre-image is slid either vertically or horizontally.

A translation is a type of transformation in geometry where the pre-image (original figure) is moved or slid to a new position in a specific direction. The movement can be either vertical or horizontal.

When a pre-image is translated vertically, it means that it is moved up or down without any change in its orientation. The entire figure maintains the same shape and size, but its position on the coordinate plane is shifted vertically.

On the other hand, when a pre-image is translated horizontally, it is moved left or right while preserving its original shape and size. The orientation of the figure remains the same, but its position on the coordinate plane is shifted horizontally.

In both cases, the translation occurs without any rotation, reflection, or resizing of the pre-image. The resulting image is a new figure that is congruent to the original but located at a different position on the plane.

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Answer: $2

Step-by-step explanation:

The given fraction (x^2-25)/(x^2-x-20) expressed in simplest form is (x+5)/(x+4). (Option C)

A fraction is in simplest form if the numerator and denominator have no common factors other than 1. In order to solve the given fraction, the numerator and denominator must be factorized, and the common factor will be canceled out.

Factoring x^2 – 25 using the difference of squares formula that states that a^2 – b^2 = (a + b)(a - b)

x^2 – 25 = x^2 – 5^2 = (x + 5)(x – 5)

Factoring x^2 – x – 20,

x^2 – x – 20 = x^2 + 4x – 5x – 20 = x(x + 4) -5(x + 4) = (x + 4)(x – 5)

Hence, factor (x – 5) is there in both numerator and denominator, it is canceled out. Hence the fraction in the simplest form is:

(x + 5)(x – 5)/ (x + 4)(x – 5) = (x + 5)/(x + 4)

Note: The question is incomplete.  The complete question probably is:  What fraction represents(x^2-25)/(x^2-x-20) expressed in simplest form. A) 5/4 B) (x-5)/(x-4) C) (x+5)/(x+4) D)25/(x+20)

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Answer: A

Step-by-step explanation:

Its A

Answer: its c

Step-by-step explanation:

took the quiz

Answer:

Step-by-step explanation:

its C I got yall

The explanation of the linear model is given below.

A linear function is of the form -

y = ax + b

Given is a linear model.

Since the linear model is not given, we will discuss the concepts that can be used to find the answer.

{ 1 } -

The intercepts are the points where the graph cuts the {x} - axis and {y} - axis.

{ 2 } -

{y} - Intercept tell us what is the value of quantity represented by variable {y} when the quantity at {x} is zero.

Similarly, {x} - Intercept tell us what is the value of quantity represented by variable {x} when the quantity at {y} is zero

Therefore, the explanation of the linear model is given above.

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Answer:

The sales tax is 4%

Step-by-step explanation:

hope this helps plz mark brainliest