whats the answer its really annoying not gonna lie

Answer: The Arithmetic Mean is the average of the numbers: a calculated "central" value of a set of numbers.

Step-by-step explanation: You can find the mean, or average, of a data set in two simple steps: Find the sum of the values by adding them all up. Divide the sum by the number of values in the data set.

Answer:

rain gauges

Step-by-step explanation:

To find ln(x³y) in terms of u and v, we can use the properties of logarithms. ln(x³y) can be rewritten as ln(x³) + ln(y), and using the property ln(a^b) = bˣ ln(a), we have 3ln(x) + ln(y) = 3u + v.

To find ln(x³y) in terms of u and v, we can use the properties of logarithms. ln(x³y) can be rewritten as ln(x³) + ln(y), and using the property ln(a^b) = bˣ ln(a), we have 3ln(x) + ln(y) = 3u + v.

The domain of the function f(x) = ln(x-3) is x > 3, since the natural logarithm is undefined for non-positive values. The x-intercept occurs when f(x) = 0, so ln(x-3) = 0, which implies x - 3 = 1. Solving for x gives x = 4 as the x-intercept.

There are no vertical asymptotes for the function f(x) = ln(x-3) since the natural logarithm is defined for all positive values. However, the graph approaches negative infinity as x approaches 3 from the right, indicating a vertical asymptote at x = 3.

To sketch the graph of f(x) = ln(x-3), we start with the x-intercept at (4, 0). We can plot a few more points by choosing values of x greater than 4 and evaluating f(x) using a calculator.

As x approaches 3 from the right, the graph approaches the vertical asymptote at x = 3. The graph will have a horizontal shape, increasing slowly as x increases. Remember to label the axes and indicate the asymptote on the graph.

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Answer:

Mr. Lin can only have 2 people in his 4 teams but he will have 2 people without a group

Step-by-step explanation:

It would be better if he had 5 teams because everyone will be able to be in a team

To solve the problem, we will use the radial diffusivity equation and superposition to calculate and plot the bottomhole pressure versus time in the reservoir for 9 days and the pressure profile at the end of 9 days.

To calculate the bottomhole pressure versus time in the reservoir, we will use the radial diffusivity equation, which describes pressure behavior in a homogenous and isotropic reservoir. By considering the production and shut-in periods, we can apply the superposition principle to account for the cumulative effect on pressure. Using the given parameters, such as formation volume factor (B), viscosity (μo), reservoir thickness (h), permeability (k), porosity (φ), initial pressure (Pi), total compressibility (ct), and well radius (rw), we can solve the radial diffusivity equation to obtain the pressure profiles at different time intervals. By plotting these values over the 9-day period, we can visualize the bottomhole pressure changes. Additionally, to calculate the pressure profile at the end of 9 days, we need to consider the pressure distribution across the reservoir radius. Using appropriate equations and considering the radial distance from the wellbore, we can determine the pressure at various radii and create a pressure profile plot.

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Answer:

\(g( {x}^{2} ) = - 4( {x}^{2} ) + 2 \\ = - 4 {x}^{2} + 2 \\ h( {x}^{2} ) = {( {x}^{2} )}^{2} - 5 \\ = {x}^{4} - 5 \\ g( {x}^{2} ) + h( {x}^{2} ) \\ = - 4 {x}^{2} + 2 + {x}^{4} - 5 \\ = {x}^{4} - 4 {x}^{2} - 3\)

Answer:

\(x^{4}\) - 4x² - 3

Step-by-step explanation:

g(x) = - 4x + 2

g(x²) = - 4x² + 2

h(x) = x² - 5

h(x²) = (x²)² - 5 = \(x^{4}\) - 5

Then

g(x²) + h(x²)

= - 4x² + 2 + \(x^{4}\) - 5

= \(x^{4}\) - 4x² - 3

The tens place is what we have to compare to determine the greater of the given numbers -7295 and 7259

To determine which number, 7259 or -7295, is greater, we can compare their place values starting with their leftmost digit.

7295 and 7259 have sevens in the thousands place; 7259 also has one; however, when we compare the next digit -7295 has twos while 7259 only has one in its hundreds place.

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Answer:

Step-by-step explanation:

X is equal to 4 we know this because because the sign in between the number means greater than or equal to so 3 x 4 equals 12 and that makes the equation on right true and on the left x is also equal to for which also makes the statement on the right true as well so I think X = 4

I hope I was able to help and If not I’m sorry

The probability that both the man and the woman will be alive fifty years later is 0.176.

Since, The probability of that both the man and woman will be alive fifty years later, we have to multiply the two probabilities together as they are independent events.

So, We get;

P(both alive after fifty years) = P(man alive after fifty years) x P(woman alive after fifty years)

P = 0.352 x 0.500

P = 0.176

Therefore, the probability that both the man and the woman will be alive fifty years later is 0.176.

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Answer:

3 OR 8  hope this helps!

Step-by-step explanation:

The electric field at the point directly to the east of the negatively charged point is directed towards the charge, that is, west of the point.

The correct option is D.

A negative point charge has an electric field focused at it. Thus, the electric field at the point directly to the east of the negatively charged point is directed towards the charge, that is, west of the point.

The electric field is defined as that of the electric force per unit of charge. The direction of the field is assumed to represent the direction of the force it would impose on a positive test charge. The electric field radiates outward from the a positive charge and inward from a negative point charge.

The field lines never cross. The field lines lie parallel to the charge's surface. The quantity of charge and indeed the number of field lines are proportionate.

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I understand that the question you are looking for is:

What is the direction of the electric field directly to the east of an isolated negative point charge?

A. north

B. south

C. east

D. West

The percent of attendance figures that differs from the mean by 1500 persons or more is 6.68%.

From the question above, Mean μ = 10,000

Standard Deviation σ = 1,000

The formula for z-score is :

z = (x-μ) / σ

Where, x = observation

z = z-score

Mean μ = 10,000

Standard Deviation σ = 1,000

From the above formula, let's calculate z-score for x = 11,500

z = (x-μ) / σ

z = (11,500 - 10,000) / 1000

z = 1.5

Now, find the probability of attendance figures that differs from the mean by 1500 persons or more.

P(z ≥ 1.5) = 0.0668

To find the percentage, we need to multiply the above value by 100.

P(z ≥ 1.5) × 100 = 0.0668 × 100 = 6.68%

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Answer:

Ray CA

Step-by-step explanation:

There is a point in-between.

A ray cannot depict CA because it extends from both of its ends.

Option 2 is correct.

In mathematics, a ray is a segment of a line with a fixed starting point but no ending. That can go on forever in a single direction. A ray cannot be measured since it has no end point.

Point: Point is a dot or vertex of any figure or diagram. It represents by capital alphabet. So, B would be a point.

Line: A line is a straight path with both endless. It means we can extends line from both end. But in case of BD we can't extend from point B. So, it won't be a line.

Ray: A ray is a straight path with one endless. It means we can't extend line from one end and extend from another end. But we can extend AC from both end. It won't be a ray.

Line Segment: A line segment is a straight path with end from both end. We can't extend from either end of the line. We can say CD would be line segment.

CA cannot be represented by a ray, as it's extending from both of its ends.

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The value of x in the equation \(\frac{x}{2} = \frac{x^2}{x - 2}\) are x = 0 and x = -2

The expression is given as:

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

Cross multiply

\(x(x - 2) =2 * x^2\)

Open the bracket

\(x^2 - 2x =2x^2\)

Collect like terms

\(- 2x =2x^2 - x^2\)

Evaluate the like terms

\(- 2x =x^2\)

Rewrite as:

\(x^2 + 2x =0\)

Factor out x

x(x + 2)  =0

Expand

x = 0 or x + 2 = 0

Solve for x

x = 0 or x = -2

Hence, the value of x are x = 0 and x = -2

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The momentum of the basketball is three times that of the softball. Momentum equals mass times velocity. Therefore, if the basketball and softball are moving at the same velocity, and the basketball has three times the mass of the softball, the basketball has three times the momentum of the softball.

Let m = the mass of the softball.

Then the mass of the basketball is 3m.

By definition formula for momentum is;

momentum =  mass * velocity.

If both the softball and basketball move at the same velocity, v, then

Momentum of the softball = mv

Momentum of the basketball = 3mv

Thus;

The momentum of the basketball is three times that of the softball. Momentum equals mass times velocity. Therefore, if the basketball and softball are moving at the same velocity, and the basketball has three times the mass of the softball, the basketball has three times the momentum of the softball.

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You have the correct answer. Apply a 180 degree rotation around the point (0,2)

Reason:

We'll connect corners between figures A and B.

Draw a line from the upper right corner of figure A to the lower left corner of figure B. This line is in red (see diagram below).

Draw another line from the lower right corner to the upper left corner. This line is in blue.

The red and blue lines intersect at the center of rotation (0,2)

The line segments constructed consist of endpoints of "before" and "after". For instance, the upper right corner in figure A rotates to the lower left corner of figure B. This happens because of the 180 degree rotation.

Note: You can do this rotation either clockwise or counterclockwise, and you would get the same result.

Answer:

$22.50

Step-by-step explanation:

Simply multiply 90 by the amount taken off:

90(1 - 0.75)

90(0.25)

22.50

Answer:

x = 60°, y = 100°, z = 120°, w = 80°

Step-by-step explanation:

x and 120° are adjacent angles on a straight line and sum to 180°

x + 120° = 180° ( subtract 120° from both sides )

x = 60°

Similarly

y + 80° = 180° ( subtract 80° from both sides )

y = 100°

and

z + 60° = 180° ( subtract 60° from both sides )

z = 120°

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

The sum of the interior angles in a quadrilateral = 360°

sum the interior angles of the quadrilateral and equate to 360°

60° + 80° + 120° + 4th angle = 360°

260° + 4th angle = 360° ( subtract 260° from both sides )

4th angle = 100°

w and 100° are adjacent angles on a straight line and sum to 180° , so

w + 100° = 180° ( subtract 100° from both sides )

w = 80°

The volume generated by rotating the region bounded by the curve y = x about the y-axis using the method of cylindrical shells is 486π cubic units.

To find the volume generated by rotating the region bounded by the curve y = x about the y-axis using the method of cylindrical shells, we can follow these steps:

First, let's sketch the region bounded by the curve y = x. This is a straight line passing through the origin with a slope of 1. It forms a right triangle in the first quadrant, with the x-axis and y-axis as its legs.

Next, we need to determine the limits of integration. Since we are rotating about the y-axis, the integration limits will correspond to the y-values of the region. In this case, the region is bounded by y = 0 (the x-axis) and y = x.

The height of each cylindrical shell will be the difference between the upper and lower curves. Therefore, the height of each shell is given by h = x.

The radius of each cylindrical shell is the distance from the y-axis to the x-value on the curve. Since we are rotating about the y-axis, the radius is given by r = y.

The differential volume element of each cylindrical shell is given by dV = 2πrh dy, where r is the radius and h is the height.

Now we can express the volume of the solid of revolution as the integral of the differential volume element over the range of y-values:

V = ∫[a, b] 2πrh dy

Here, [a, b] represents the range of y-values that define the region. In this case, a = 0 and b = 9 (as y = x, so the curve intersects y-axis at y = 9).

Substituting t

he values of r and h into the integral, we have:

V = ∫[0, 9] 2πy(y) dy

Simplifying, we get:

V = 2π ∫[0, 9] y^2 dy

Evaluating the integral, we have:

V = 2π [y^3/3] from 0 to 9

V = 2π [(9^3/3) - (0^3/3)]

V = 2π [(729/3) - 0]

V = 2π (243)

V = 486π

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Answer:

Step-by-step explanation:

42x - 10.51 cannot be answered

The ratio between consecutive terms is (5^(n+1))/[(n+1)*(5^n)]. To find the ratio of the terms in the series, we need to determine the general term (an) of the series.

For the first series, ∑n=1∞ 5^n, we observe that each term is a power of 5. The general term can be expressed as an = 5^n.

For the second series, ∑n=1∞ 5^n/n, we have a combination of the terms 5^n and 1/n. The general term can be written as an = (5^n)/n.

To find the ratio between the terms, we'll calculate the ratio of consecutive terms:

Ratio = (a[n+1])/(an) = [(5^(n+1))/n+1] / [(5^n)/n]

Simplifying the expression, we can cancel out the common factors:

Ratio = (5^(n+1))/[(n+1)*(5^n)]

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Answer:

in a class of 80 students, 56 are boys and the rest are girls. what percentage of students are girls?

30% is the answer

Answer:

x=-37

Step-by-step explanation:

First, rearrange the equation by subtracting what is to the right of the equal sign from both sides of the equation:

                    2*x-31-(3*(x+2))=0

(2x - 31) -  3 • (x + 2)  = 0

Pulling out like terms

3.1     Pull out like factors :

  -x - 37  =   -1 • (x + 37)

Equation at the end of step

 -x - 37  = 0

Solving a Single Variable Equation:

4.1      Solve  :    -x-37 = 0

Add  37  to both sides of the equation :

                     -x = 37

Multiply both sides of the equation by (-1) :  x = -37

To multiply polynomials together, use distributive property. With the distributive property, it is possible to multiple a sum by multiplying each term independently, then adding the products together.

A polynomial is an expression made up of variables, constants, and exponents that are combined using mathematical operations like addition, subtraction, multiplication, and division.

Example:

The distributive property is an algebra property that allows you to multiply a single term with two or more terms enclosed by parentheses. Understand how distributive property works, can help you to multiply polynomials easily.

Example:

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Answer: Commutative, Distributive, Associative

Step-by-step explanation:

Answer:

Green line: -1/2

Blue line: -1/2

Step-by-step explanation:

Both of them in slope-intercept form:

Green line: y= -1/2x-11/2

Blue line: y= -1/2x-7

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The percentage of red pencils Mike had is 75%.

A percentage is a value per hundredth. Percentages can be converted into decimals and fractions by dividing the percentage value by a hundred.

Given, Mike had 180 blue and red pencils and 45 were blue.

So, The number of red pencils is,

= (180 - 45).

= 135.

Therefore, The percentage of red pencils is,

= (135/180)×100%.

= 75%.

Some other concept related to percentage is percentage change,  

The net amount change will now be divided by the original sum and multiplied by 100%, giving us the percentage change, which is,

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4) Let the number be : N

Given : 10% of this number is 25

\(\sf{\implies 10\% \ of \ N = 25}\)

\(\sf{\implies \dfrac{10}{100} \times N = 25}\)

\(\sf{\implies \dfrac{N}{10} = 25}\)

\(\sf{\implies N = 250}\)

Now we need to find 60% of 250

\(\sf{\implies \dfrac{60}{100} \times 250}\)

\(\sf{\implies 6 \times 25}\)

\(\sf{\implies 150}\)

5) Given : James left the home at 10 : 00 AM

First : He will meet his friend Tom at the skate park which is 15 minutes walk from his home.

So, James reached the skate park 10 : 15 AM

Second : They stayed at the skate park for an hour

So, till 11 : 15 AM James and Tom were at skate park

Third : Then they will take a 10 minutes walk over to the Burger bar

So, James and Tom reached the Burger bar at 11 : 25 AM

6) First let us find 75% of 80

\(\sf{\implies \dfrac{75}{100} \times 80}\)

\(\sf{\implies 15 \times 4}\)

\(\sf{\implies 60}\)

Now let us find 40% of 30

\(\sf{\implies \dfrac{40}{100} \times 30}\)

\(\sf{\implies 12}\)

Now, (60 - 12) = 48

Answer: 75% of 80 is 48 greater than 40% of 30

7) Given : Journey to school takes 70 minutes

We know that : 1 hour = 60 minutes

So, 70 minutes = 1 hour + 10 minutes

Given : Boy leaves the home at 0715

Answer: The Boy arrives at 0825

The sum of forecast errors is also known as total forecast error. Therefore, the correct answer is option A, which is "2."

The absolute error of the given data is calculated by subtracting the actual value from the forecasted value, followed by the absolute value.

The errors are then summed up to get the mean absolute deviation. The value used for ||18−20|| in the calculation of MAD and summing up the forecast errors is 2.

Therefore, the correct answer is option A, which is "2."Formula for calculating MAD:MAD = Σ ( | A_i - F_i | ) / n

Where: MAD is the mean absolute deviation|A_i - F_i| represents the absolute error between the actual value (A) and the forecasted value (F)n is the total number of observations, Sum of forecast errors:Σ ( A_i - F_i )Where: A_i is the actual valueF_i is the forecasted value

The sum of forecast errors is also known as total forecast error.

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