What is the formula for the circumference of a circle in terms of r

Answer:

Step-by-step explanation: the slope would be 1 and the y intercept would be 4.

Answer:

about 240.8551 mm

Step-by-step explanation:

The Wald test is a statistical test that can be used to test the significance of a group of coefficients in a multiple regression model.

The test statistic is calculated as the ratio of the estimated coefficient to its standard error. If the test statistic is significant, then the null hypothesis that the coefficient is equal to zero can be rejected.

Suppose we have a multiple regression model with three independent variables: age, gender, and education. We want to test the hypothesis that the coefficients for age and education are both equal to zero. The Wald test statistic would be calculated as follows:

Test statistic = (Estimated coefficient for age) / (Standard error of estimated coefficient for age) + (Estimated coefficient for education) / (Standard error of estimated coefficient for education)

If the test statistic is significant, then we can reject the null hypothesis that the coefficients for age and education are both equal to zero. This would mean that there is evidence that age and education are both associated with the dependent variable.

The Wald test is a powerful tool that can be used to test the significance of a group of coefficients in a multiple regression model. However, it is important to note that the test statistic is only valid if the assumptions of the multiple regression model are met. If the assumptions are not met, then the p-value of the Wald test may be inaccurate.

Here are some of the assumptions of the multiple regression model:

* The independent variables are independent of each other.

* The dependent variable is normally distributed.

* The errors are normally distributed.

* The errors have constant variance.

If any of these assumptions are not met, then the Wald test may not be accurate.

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Answer:

140 hamburgers

Step-by-step explanation:

to find the answer we must first use a let statement and write an equation

let x = hamburgers

hamburgers * 2 is cheeseburgers and added together that is 420

so

x + 2x = 420

now solve

3x = 420

x = 140

140 hamburgers were sold

Answer:

Step-by-step explanation:

240 divided by 3= 80

80+80=160

160 hamburgers sold altogether on Wednesday.

Answer:

1 911.484916 square units

Step-by-step explanation:

Area of the rectangle = 50 * 14 = 700 square units

thanks to the given informations we can find the height of the triangle by using sine.

sin = opposite/hypotenuse

opposite = hypotenuse * sin = 50 * 0,969188 = 48,459397

Area of the triangle = (50 * 48,459397)/2 = 1.211,484916 square units

Total area = 1.211,484916 + 700 = 1.911,484916 square units

Answer:

5.7

Step-by-step explanation:

Answer:

x= 7

Step-by-step explanation:

3x= 13+8

3x= 21

x= 21/3

x= 7

Answer:

a=16 b =10 or any other combination that gives 160

a = 20 b=8

a = 32 b = 5

Step-by-step explanation:

The area of a triangle using the lengths of two sides and the sine of the included angle is ½ ab sin C  where a and b are sides and C is the angle.

A =40 = 1/2 ab sin 30°

sin 30° = 1/2 so

40 = 1/2*ab*1/2

40 =1/4 ab multiply each side by 4

160 = ab

any combination of sides that gives you 160 will work

Let's check if a=16 b =10

A = 1/2*16*10 sin 30°

A = 1/2*160*1/2

A = 40

The correct answer to the first question is (c) Backtest on the model on the F-IRB Approach method is carried out on Default Probability and Loss Given Default estimated by the Bank.

The correct answer to the second question is (b) Vertical Disalowance is a small proportion of matched positions between different time scales.

The correct statement about cumulative mismatch is (b) Stated as the position needed to neutralize the net mismatch and have the opposite sign or in the direction of the net mismatch.

Backtesting is an important part of model validation, which involves testing a model's performance by comparing its predictions to actual outcomes. In the case of the F-IRB approach method, the backtest is carried out on default probability and loss given default estimated by the bank.

Vertical Disallowance refers to the amount of mismatch that is not allowed between different time scales when calculating the capital requirement for market risk under the Basel II framework. The correct answer is (b), which means that a small proportion of matched positions between different time scales is disallowed.

Cumulative mismatch is the sum of all mismatches over a specified period. The correct answer is (b), which means that the position needed to neutralize cumulative net mismatch has the opposite sign or is in the direction of the net mismatch.

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Complete Questions:

Backtest on the model on the F-IRB Approach method is carried out on ...

A. All risk factors (default probability, loss given default, and exposure at default)

b. Loss Given Default and Exposure AT Default specified by Supervisor

c. Default Probability and Loss Given Default estimated by the Bank

d. The default probability estimated by the bank

e. Not set in Basel II

Vertical Disalowance is ...

a. A small proportion of matched positions on each time scale

b. A small proportion of matched positions between different time scales

c. A greater proportion of matched positions between the apartence scales

d. A greater proportion of matched positions between the same time scale

e. A smaller proportion of matched positions between adjacent time scales

The correct statement about cumulative mismatch is ...

a. Stated as the position needed to neutralize the net mismatch and have the same sign as net mismatch

b. Stated as the position needed to neutralize the net mismatch and have the opposite sign or in the direction of the net mismatch

c. Expressed as the position needed to neutralize net mismatch and have a sign that is contrary to the net mismatch

d. Stated as the position needed to neutralize the cumulative net mismatch and have the same sign as cumulative net mismatch

e. Stated as the position needed to neutralize cumulative net mismatch and have a sign that is contrary to the cumulative net mismatch

Angles A and B are complementary to each other where ∠B=67°

Complementary Angles: When the sum of two angles is equal to 90 degrees, they are called complementary angles. For example, 30 degrees and 60 degrees are complementary angles

Angles A and B are complementary to each other

we know that complementary angles sum is equal to 90°

∠A=23° and ∠B=(4x+15)°

∠A+∠B=90

23°+(4x+15)°=90°

23°+4x°+15°=90°

38°+4x°=90°

take all numerals aside and solve

4x°=90°-38°

4x°=52°

x=13°

∠B=4(13)°+15°

    =52°+15°

    =67°

Angles A and B are complementary to each other where ∠B=67°

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The correct answer is option (A). The answer is metes and bounds.

Given that,

Despite being antiquated, the most adaptable method of defining land, capable of characterizing even the most atypical of parcels, may be summed up as a very exact, compass-directed stroll around a parcel's boundaries.

To find : This approach is frequently known as ?

Metes and bounds are limits of  piece of a land that may be located on its natural features. Metes and bounds markers are frequently employed in a land's "legal description." Legal description, which is recorded with the land's deed, is the geographical description of a piece of land that pinpoints its exact location.

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The measure of angle DAB in the given quadrilateral can be calculated as: 109°.

To find the measure of an angle in a quadrilateral, you need to use the fact that the sum of all angles in a quadrilateral is always equal to 360 degrees.

Using the above fact stated, we can add up the three known angles in the given quadrilateral and then subtract it from 360 degrees to find the measure of angle DAB.

Thus, we have:

m<DAB = 360 - (90 + 97 + 64)

m<DAB = 360 - 251

m<DAB = 109°

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Answer:

47x+42/2

Step-by-step explanation:

simplify 9/2

((19x+20)+(9/2×x))+1

(47x+40)/2+1

(47+42)/2

Answer:

A, B, E, and F

Step-by-step explanation:

Emmy's actual score in the exam is 64.

A Z-score is a metric that quantifies how closely a value relates to the mean of a set of values. Standard deviations from the mean are used to measure Z-score. A Z-score of zero means the data point's score is the same as the mean score.

Given,

class average =  76

standard deviation = 8

Z- score = -1.50

The formula of Z-score is -

z = (x-μ)/σ

Where x is the actual score,

μ is the mean,

σ is the standard deviation.

Now putting the values in the formula we get,

-1.50 = (x- 76) / 8

⇒ on solving, we get x = 64

So the actual score of Emmy = 64

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Step-by-step explanation:

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Answer: 27

Step-by-step explanation:

If the speed and the charge of a particle moving across a magnetic field are each doubled, the deflecting force will be:

d. The deflecting force will be quadrupled.

The deflecting force experienced by a charged particle moving across a magnetic field is given by the equation F = qvBsinθ, where F is the deflecting force, q is the charge of the particle, v is its velocity, B is the magnetic field strength, and θ is the angle between the velocity vector and the magnetic field vector.

If both the speed (v) and charge (q) of the particle are doubled, the deflecting force (F) can be calculated by substituting the new values into the equation:

F' = (2q)(2v)Bsinθ = 4(qvBsinθ) = 4F

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Answer:

2y=3x=-4

Step-by-step explanation:

grouping like terms

y+ly =4x-x=-4

2y=3x=-4

Answer:

Step-by-step explanation:

Point of intersection of the two axes --- origin

The vertical position of a point ---- y-coordinate

Horizontal axis ----- x-axis

The horizontal position of a point ------ x-axis

Vertical axis ------ y-axis

I hope I've helped you.

Answer:

Let the length of missing side x.

x^2 = 16^2 + 30^2

x^2 = 1156

x = √1156

x = 36

Step-by-step explanation:

Hope it is helpful....

Answer:

Step-by-step explanation:

x ² = 16² +30²

x ² = 1156

x = √1156

x =34

Answer:

$12.50

Step-by-step explanation:

62% would be left,so

\(\frac{62}{100}\) × $20

=$12.50

For Cylinder:

SA = 578.05 yd^3

V = 955.04 yd^3

For Trapezoidal Prism:

SA = 510.4 ft^2

V = 275 ft^3

Cylinder: Second Image

diameter - D

area - A

radius - R

height - H

volume - V

surface area - SA

PI = 3.14159...

R = D/2

R = 8/2

R = 4 yd

Surface Area:

SA = 2×PI×R×H + 2×PI×R^2

SA = 2×(3.14159×4×19) + 2(3.14159×(4)^2)

SA = 578.05 yd^3

Volume:

V = PI×(R^2)×h

V = 3.14159×(4^2) × 19

V= 955.04 yd^3

Trapezoidal Prism: First Image

lateral area - LA

area of base - BA

base - B

width - W

height - H

volume - V

surface area - SA

Volume:

V = BA × H

V =( L×W + 0.5(B×H)) × H

V = (5×7 + 0.5(8×5)) × 5

V = 275 ft^3

Surface area:

Lateral area is the sum of all the areas excluding the area of the base.

LA = a×l + b×l + c×l + d×l

LA = l(a+ b + c + d)

LA = 11(5 + 9.4 + 15 + 7)

LA = 400.4 ft^2

BA = L×W + 0.5(B×H)

BA = 5×7 + 0.5(8×5)

BA = 55 ft^2

SA = 2×BA + LA

SA = 2×55 + 400.4

SA = 510.4 ft^2

Answer:

Step-by-step explanation:

Given the system of equation:

y = 5x –4 and y = 7x – 3

Since both functions are functions of x with the same output as y, we can equate both as shown:

5x-4 = 7x-3

collect like terms

5x-7x = -3+4

-2x = 1

x = -1/2

Substitute x = -1/2 into any of the equation

y = 5x-4

y = 5(-1/2)-4

y = -5/2 - 4

y = (-5-8)/2

y = 13/2

Since x = -1/2 and y = -13/2, this shows that the system of equation jhas only one solution.

Answer:

slope intercept form is y = mx + b

It looks like y= x+3 is the only option in slope intercept form

Answer:

  14.5 square units

Step-by-step explanation:

You want the area of the triangle inscribed in the 4×9 rectangle shown.

Pick's theorem tells you the area can be found using the formula ...

  A = i +b/2 -1

where i is the number of interior grid points, and b is the number of grid points on the boundary. This theorem applies when the vertices of a polygon are at grid intersections.

The first attachment shows there are 14 interior points, and 3 boundary points. Then the area is ...

  A = 14 + 3/2 -1 = 14 1/2 . . . . square units

The area of the triangle is 14.5 square units.

The area of a triangle can also be found from the determinant of a matrix of its vertex coordinates. The second attachment shows the area computed for vertex coordinates A(0, 4), C(7, 0) and B(9, 3).

The area of the triangle is 14.5 square units.

__

Additional comment

The area can also be found by subtracting the areas of the three lightly-shaded triangles from that of the enclosing rectangle. The same result is obtained for the area of the inscribed triangle.

The area value shown in the first attachment is provided by the geometry app used to draw the triangle.

We find the least work is involved in counting grid points, which can be done using the given drawing.

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Answer:

127°

Step-by-step explanation:

720-(128+100+120+112+133)=127°

Is the answer right

Answer:

bro this is so easy it's letter d

Answer:

The reflection will be on the first quadrant

Step-by-step explanation:

Here, we want to reflect the given point over the y-axis

By reflecting over the y-axis, we simply have to negate the x-coordinate value

So after the reflection, the point (-8,5) becomes (8,5)

(8,5) is a point on the first quadrant

So we have the position after the reflection on the first quadrant

Answer:

5+x^3

Step-by-step explanation: