I need this really fast in like 2 min

2 + 5x – 3 – 2 + 4x = 15

To construct a 98% confidence interval, we need the t value with 49 degrees of freedom corresponding to an area of 0.02 in the upper tail.

To construct a confidence interval, we need to determine the critical value that corresponds to the desired level of confidence and the degrees of freedom.

In this case, we want to construct a 98% confidence interval, which means the desired level of confidence is 0.98. Since we are using the t-distribution, we need to find the t value that corresponds to this level of confidence.

The degrees of freedom for a t-distribution are equal to the sample size minus 1. Given that the degrees of freedom in this case are 49, we need to find the t value associated with a 98% confidence level and 49 degrees of freedom.

The area in the upper tail, which represents the confidence level, is equal to 1 minus the desired level of confidence. Therefore, the area in the upper tail is 1 - 0.98 = 0.02.

To find the t value with 49 degrees of freedom corresponding to an area of 0.02 in the upper tail, we consult a t-table or use statistical software. The t value for a 98% confidence level and 49 degrees of freedom is approximately 2.681.

Therefore, to construct a 98% confidence interval, we need the t value with 49 degrees of freedom corresponding to an area of 0.02 (2%) in the upper tail.

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Samina need 14.16 m wood to make 6 shelves each measuring 2.36 m

Samina has been asked to make 6 shelve each shelve must measure 2.36 m

Wood is the hard substance that forms the inside part of the branches and trunk of the tree, used to make a things or as a fuel.

Shelves is a thin flat usually long and narrow piece of material (such as wood) fastened horizontally (as on a wall) at a distance from the floor to hold the objects.

Amount of wood required to make a shelve  = 2.36 m

Number of shelves to be make = 6

Total amount of wood is required to make 6 shelves = 6 × 2.36 = 14.16 m

Samina need 14.16 m wood to make 6 shelves each measuring 2.36 m

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Answer:

sorry I can't help you with this answer

Answer:

Domain = 1,3,5,7

Range = 8,7,6,5

Step-by-step explanation:

We need to identify the domain and range of the function: input 1,3,5,7 output 8,7,6,5

Domain of function:

For any function domain is set of input values.

Range of function:

For any function range is set of output values.

So, for the given function we have : input 1,3,5,7 output 8,7,6,5

Domain = 1,3,5,7 (set of input values is domain of function)

Range = 8,7,6,5 (set of output values is range of function)

The equation that relates M to R is M = 13 - R

From the question, we have the following parameters:

The total number of new magazines is the sum of the number of magazines read and the number of magazines left

This is represented as

Total number of new magazines = Number of magazines read + Number of magazines left

Substitute the known values in the above equation

13 = R +M

Make M the subject

M = 13 - R

Hence, the equation is M = 13 - R

See attachment for the graph

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The Laplace equation is defined as Au=0. The aim is to solve analytically Laplace's equation in the square [0, 1]²2 with boundary conditions u(x,0) = 0 = u(0, y), u(x, 1) = u(1, y) = 1.

Let's consider the Laplace equation as followsAu = ∂²u/∂x² + ∂²u/∂y²= 0Given boundary conditions areu(x, 0) = 0u(0, y) = 0u(x, 1) = u(1, y) = 1The solution of the Laplace equation is as followsu(x,y) = X(x).Y(y)Let's find the boundary conditionsu(x, 0) = 0

Let's substitute the value of Y(0) in the solution to get X(x).Y(0) = 0, which implies Y(0) = 0Similarly, u(0, y) = 0 => X(0).Y(y) = 0 => X(0) = 0Now, let's find the remaining boundary conditionsu(x, 1) = 1X(x).Y(1) = 1 => Y(1) = 1/X(x)u(1, y) = 1 => X(1).Y(y) = 1 => X(1) = 1/Y(y)Now, let's put the values of X(0) and X(1) in the below equationX(0) = 0, X(1) = 1/Y(y)X(x) = x

Now, let's put the values of Y(0) and Y(1) in the below equationY(0) = 0, Y(1) = 1/X(x)Y(y) = sin(n.π.y) /sinh(n.π)Therefore, the solution of Laplace's equation u(x, y) is as follows;u(x,y) = Σ(n=1 to ∞)sin(n.π.y).sinh(n.π.x) /sinh(n.π)Answer:Therefore, the solution of Laplace's equation u(x, y) is u(x,y) = Σ(n=1 to ∞)sin(n.π.y).sinh(n.π.x) /sinh(n.π).

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Answer:

32/60 is not a equivalent fraction of 8/12

I hope this helps you.

The value of AC is,

⇒ AC = 37.57

We have to given that;

The circle E with diameter CD and radius EA.

AB is tangent to E at A.

Here, AD = 16 and EA = 17

Hence, We get;

CD = 17 + 17

CD = 34

By using Pythagoras theorem;

AC² = AD² + CD²

AC² = 16² + 34²

AC² = 256 + 1156

AC² = 1412

AC = √1412

AC = 37.57

Thus, The value of AC is,

⇒ AC = 37.57

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103°F is equal to 39.4°C. both are unit of measurement of temperature.

To convert from Fahrenheit to Celsius, subtract 32 from the temperature in Fahrenheit, then multiply the result by 5/9.

so in this case, 103°F - 32 = 71

and then multiply it by 5/9 we get

=> 71 x 5/9

=> 355/9

=> 39.4

So, 103°F is equal to 39.4°C.

This conversion formula is commonly used in the field of science and technology, as well as in everyday life, to compare temperatures in different units of measurement.

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Answer:

d. 92 cm

Step-by-step explanation:

P = 2(34 + 12)

P = 2(46)

P = 92

Answer:

is it d or 92

Step-by-step explanation:

The total cost before the sales tax was 19.828 pounds.

For a party, Jordan purchased 3.8 pounds of turkey, 2.2 pounds of cheese, and 3.6 pounds of egg salad.

We have to determine the total cost before sales tax.

As per the question, we have prices as:

cost of turkey = 3.95 per pound

cost of egg cheese = 1.3 per pound

cost of egg salad = 0.89 per pound

The total cost of turkey = 3.8 × 3.95  = 15.01 pounds

The total cost of cheese = 2.2 × 1.3 = 2.86 pounds

The total cost of egg salad = 2.2 × 0.89 = 1.958 pounds

The total cost before sales tax = 15.01 + 1.958 +2.86

Apply the addition operation, and we get

The total cost before sales tax = 19.828 pounds

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The question seems to be incomplete the correct question would be:

Jordan bought 3.8 pounds of turkey, 2.2 pounds of cheese, and 3.6 pounds of egg salad for a party. If prices are 3.95 per pound turkey, 1.3 per pound cheese and 0.89 per pound egg salad What was the total cost before sales tax?

Answer: sqrt(56) 11.2 16.2 In order

Step-by-step explanation:

x = sqrt(9^2-5^2)=sqrt(56)

x^2+y^2+9^2 = (y+5)^2

y^2+137 = y^2+10y+25

112 = 10y

y = 11.2

z = 11.2+5 = 16.2

Answer:

8

Step-by-step explanation:

A cube is equal on all sides. Therefore the cubes must be 3cm x 3cm x 3cm. Therefore, each cube has an area of 27cm^3. The box that the cube has an area in is 3cm x 6cm x 12 cm which = 216cm^3. If you do \(216cm^3/27cm^3 = 8 cubes\)

The minimum length of the crest vertical curve is 354.1 feet, and the minimum length of the sag curves is 493.4 feet.

In designing the crest vertical curve, several criteria need to be considered, including driver perception-reaction time, design speed, and grade changes. The design should ensure driver comfort and safety by providing adequate sight distance.

To determine the minimum length of the crest vertical curve, we consider the stopping sight distance, which includes the distance required for a driver to perceive an object, react, and come to a stop. The minimum length of the crest curve is calculated based on the formula:

Lc = (V^2) / (30(f1 - f2))

Where:

Lc = minimum length of the crest vertical curve

V = design speed (in feet per second)

f1 = gradient of the approaching grade (in decimal form)

f2 = gradient of the departing grade (in decimal form)

Given the design speed of 60 mph (or 88 ft/s), and the grade changes of +4% and -3%, we can calculate the minimum length of the crest vertical curve using the formula. The result is approximately 434 feet.

Additionally, the sag curves are designed to provide a smooth transition between the crest curve and the approaching and departing grades. The minimum lengths of the sag curves are typically equal and calculated based on the formula:

Ls = (V^2) / (60(a + g))

Where:

Ls = minimum length of the sag curves

V = design speed (in feet per second)

a = acceleration due to gravity (32.2 ft/s^2)

g = difference in grades (in decimal form)

For the given scenario, the difference in grades is 7% (4% - (-3%)), and using the formula with the design speed of 60 mph (or 88 ft/s), we can calculate the minimum lengths of the sag curves to be approximately 307 feet each.

By considering the perception-reaction time, design speed, and grade changes, the minimum lengths of the crest vertical curve and the sag curves can be determined to ensure safe and comfortable driving conditions on the two-lane highway.

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Answer:

2

Step-by-step explanation:

Answer:

Step-by-step explanation:

The dimension of the basis is {[1 0 0 2], [-1 1 0 0]}.

To find a basis for the subspace S = span {[1 -1 0 2], [3 -5 4 8], [0 1 -2 -1]}, we can use the same method as in the example. First, we put the vectors in a matrix and row-reduce it:

[1 -1 0 2]
[3 -5 4 8]
[0 1 -2 -1]

R2 - 3R1 -> R2
R3 -> R3 + 2R1

[1 -1 0 2]
[0 -2 4 2]
[0 1 -2 -1]

-1/2R2 -> R2

[1 -1 0 2]
[0 1 -2 -1]
[0 1 -2 -1]

R3 - R2 -> R3

[1 -1 0 2]
[0 1 -2 -1]
[0 0 0 0]

We can see that the last row is all zeros, so we have only two pivots and one free variable. This means that the dimension of the subspace S is 2. To find a basis, we can write the pivots as linear combinations of the original vectors:

[1 -1 0 2] = [1 0 0 2] + [-1 1 0 0]
[0 1 -2 -1] = [0 1 -2 -1]

Therefore, a basis for S is {[1 0 0 2], [-1 1 0 0]}.

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The equation provided is: ρ²(sin²(φ)sin²(θ) + cos²(φ)) = 16, This equation is in spherical coordinates,

where ρ represents the radial distance from the origin, φ is the polar angle (or the angle between the positive z-axis and the vector), and θ is the azimuthal angle (or the angle between the positive x-axis and the projection of the vector onto the xy-plane).

Now, let's analyze the equation further: 1. Divide both sides of the equation by 16 to isolate ρ²: ρ² = 16 / (sin²(φ)sin²(θ) + cos²(φ)) 2. Take the square root of both sides to find ρ: ρ = √(16 / (sin²(φ)sin²(θ) + cos²(φ))).

From this, we can see that the surface is defined by the radial distance ρ, which depends on the angles φ and θ. This indicates that the given equation represents a 3-dimensional surface in spherical coordinates.

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Answer:

Alternate interior angles

Probability of having more than THREE and fewer than SEVEN typos in the book is 0.6192

Mean number of typos (µ) = Expected number of typos per a single page × Total number of pages

                                           = 0.01 × 400

                                           = 4

Number of typos (T) in a book is a Poisson distribution with λ = 4.

For Poisson distribution,We have P(X > x) = 1 - P(X ≤ x) …..(1)

P(X ≥ x) = 1 - P(X < x) …..(2)

where x is the given number of successes and X is the Poisson distributed random variable.

1. Determine the probability of having more than FOUR typosP(X > 4) = 1 - P(X ≤ 4)From Poisson table, P(X ≤ 4) = 0.6288Therefore,P(X > 4) = 1 - 0.6288

                                           = 0.3712

Probability of having more than FOUR typos = 0.3712 (approx)

2. Find how likely is to have at least SIX typos in the book.P(X ≥ 6) = 1 - P(X < 6)From Poisson table,P(X < 6) = 0.4032

Therefore,P(X ≥ 6) = 1 - 0.4032

                               = 0.5968

Probability of having at least SIX typos in the book = 0.5968 (approx)

P(3 ≤ X ≤ 7) = P(X ≤ 7) - P(X < 3)

From Poisson table, P(X ≤ 7) = 0.8573 and P(X < 3) = 0.1954

Therefore,P(3 ≤ X ≤ 7) = 0.8573 - 0.1954= 0.6619

The likelihood that the book has more than THREE and fewer than SEVEN typos is 0.6192.

4. Evaluate the chance of having more than THREE and fewer than SEVEN typos in the book.P(3 < X < 7) = P(X < 7) - P(X ≤ 3)From Poisson table, P(X < 7) = 0.8573 and P(X ≤ 3) = 0.2381

Therefore,P(3 < X < 7) = 0.8573 - 0.2381

                                    = 0.6192

Probability of having more than THREE and fewer than SEVEN typos in the book is 0.6192 (approx).

Hence, the required probabilities are:

1. Probability of having more than FOUR typos = 0.3712 (approx)

2. Probability of having at least SIX typos in the book = 0.5968 (approx)

3. Probability that number of type s is at least THREE and at most SEVEN is 0.6619 (approx)

4. Probability of having more than THREE and fewer than SEVEN typos in the book is 0.6192 (approx).

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Answer:

0.45

To find 0.45 you divide 45g by 100 to get 0.45!

The height of the tree that casts a shadow is 28.45 meters will be 12.68 meters.

The polygonal shape of a triangle has a number of sides and three independent variables. Angles in the triangle add up to 180°.

The ratio of the matching sides will remain constant if two triangles are comparable to one another.

Ethan is 1.85 meters tall. At 10 a.m., he measures the length of a tree's shadow to be 28.45 meters. He stands 24.3 meters away from the tree.

Then the height of the tree is given as,

h / 1.85 = 28.45 / (28.45 - 24.3)

h / 1.85 = 28.45 / 4.15

h = 1.85 x 28.45 / 4.15

h = 12.68 meters

The height of the tree that casts a shadow is 28.45 meters will be 12.68 meters.

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Answer:

8 inches is left in the pool

the partial derivative ∂z/∂y using implicit differentiation of e^z + sin(5x^2) + 2y = 0 is:
To calculate the partial derivative ∂z/∂y using implicit differentiation of e* + sin (5x^2) + 2y = 0, we first need to differentiate both sides of the equation with respect to y.

We get:

d/dy(e^z + sin(5x^2) + 2y) = d/dy(0)

Using the chain rule, the left-hand side becomes:

∂(e^z)/∂z * ∂z/∂y + ∂(sin(5x^2))/∂y + 2

We can simplify this by recognizing that ∂(sin(5x^2))/∂y = 0, since sin(5x^2) does not depend on y. Thus, we are left with:

∂(e^z)/∂z * ∂z/∂y + 2 = 0

Now, we need to solve for ∂z/∂y:

∂z/∂y = -2 / ∂(e^z)/∂z

To find ∂(e^z)/∂z, we differentiate e^z with respect to z, giving:

∂(e^z)/∂z = e^z

Substituting this into the expression for ∂z/∂y, we get:

∂z/∂y = -2 / e^z

Therefore, the partial derivative ∂z/∂y using implicit differentiation of e^z + sin(5x^2) + 2y = 0 is:

∂z/∂y = -2 / e^z

Note that we cannot simplify this any further without knowing the value of z.
To find the partial derivative ∂z/∂y using implicit differentiation for the equation e^z + sin(5x^2) + 2y = 0, we will first differentiate the equation with respect to y, treating z as a function of x and y.

Differentiating both sides with respect to y:

∂/∂y (e^z) + ∂/∂y (sin(5x^2)) + ∂/∂y (2y) = ∂/∂y (0)

Using the chain rule for the first term, we get:

(e^z) * (∂z/∂y) + 0 + 2 = 0

Now, solve for ∂z/∂y:

∂z/∂y = -2 / e^z

So, the partial derivative ∂z/∂y for the given equation is:

∂z/∂y = -2 / e^z

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Answer:

11/4m

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The inequality shaded in the graph is given as follows:

y ≥ 5x/2 + 3.

The slope-intercept equation for a linear function is presented as follows:

y = mx + b

In which:

The graph crosses the y-axis at y = -3, hence the intercept b is given as follows:

b = 3.

When x increases by 2, y increases by 5, hence the slope m is given as follows:

m = 5/2.

Then the equation of the line is given as follows:

y = 5x/2 + 3.

The line is a solid line, and values above it are plotted, hence the inequality is given as follows:

y ≥ 5x/2 + 3.

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The higher the value of Cronbach's alpha, the higher the internal consistency reliability of the assessment.

A measurement of internal consistency that allows researchers to determine how well the different items/questions within a test measure different aspects of the same topic is known as reliability.

Reliability refers to the consistency of the results of an assessment. In other words, it refers to the extent to which an assessment yields stable and consistent results. Researchers use various methods to assess the reliability of an assessment.

These include test-retest reliability, inter-rater reliability, and internal consistency reliability.

In this case,

The internal consistency reliability is the method that allows researchers to determine how well the different items/questions within a test measure different aspects of the same topic.

Internal consistency reliability is a method that measures the consistency of the results of an assessment by examining the relationships among the different items/questions within the assessment. It looks at the degree to which the items/questions within an assessment measure the same thing or construct.

If the different items/questions within an assessment are measuring the same thing, then the assessment is said to have high internal consistency reliability. If the items/questions are measuring different things, then the assessment is said to have low internal consistency reliability.

Researchers use various statistical methods to assess internal consistency reliability. One of the most common methods is Cronbach's alpha, which measures the degree to which the items/questions within an assessment are correlated with each other.

The higher the value of Cronbach's alpha, the higher the internal consistency reliability of the assessment.

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Answer: x(-1.8-6y)  =  -1.8*x -6*y*x

Step-by-step explanation:

The distributive property says that if we have:

A*(B + C) where A, B and C can be any numbers, we can expand the equation as:

A*(B + C) = A*B + A*C.

So, in this case, we have the equation:

x*(-1.8 - 6y)

so we can expand this as:

x*(-1.8 - 6y) = x*(-1.8) + x*(-6*y) = -1.8*x -6*y*x

The values of x and y using the concept of similar figures are:

y = 166 and x = 3.33 units

Two triangles are said to be similar if their corresponding side proportions are the same and their corresponding pairs of angles are the same. When two or more figures have the same shape but different sizes, such objects are called similar figures.  

We are told that Polygon ABCD is similar to Polygon EFGH and as such applying the similar figure definition above, we can say that:

∠B = ∠F

Thus:

∠B = 360 - (61 + 116 + 90)

∠B = 360 - 267

∠B = 93°

Thus:

y - 73 = 93

y = 166

Using the concept of similar figures, then:

6/4 = 5/x

x = 20/6

x = 3.33 units

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Answer:

The answer to the question provided is 31.

Step-by-step explanation:

Happy To Help <3

216.25 square feet

……….