Find the indicated area undor the standard normal curve. Between z=0 and z=1.98 Click hore to view pags. 1 of the standard normal table. Cick hore to view ooge 2 of the standard nomal tatie. The area between z=0 and z=1.98 under the standard normal curve is (Round to four decimal places as needed.)

Answer:

A

Step-by-step explanation:

There are 86 treats did Sidney buy in all.

We have to given that;

Sidney bought some treats for her puppy.

And, She bought 5 packs of crunchy treats and 7 bags of soft treats.

Since, There were 6 crunchy treats in each pack and 8 soft treats in each bag.

Hence, Total crunchy treats in 5 packs are,

= 5 x 6

= 30

And, Total soft treats in 7 bags are,

= 8 x 7

= 56

Therefore, Total number of treats did Sidney buy in all is,

⇒ 56 + 30

⇒ 86

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Answer: No. The answer to this system is y=−85 and y=5, and if you plot that and (3,4) on a graph (I did it on desmos), you will see that it is one square down from the system, meaning it is not a solution to the system. Hope this helps and have a great day!

Not necessarily, because this was not an experiment.

In my opinion, Yet scientific evidence from case studies, surveys of meditator experiences, and historical studies is emerging to show that meditation can be associated with stress, negative effects, and mental health problems. Meditation can induce a state of deep relaxation and a calm mind. During meditation, you focus your attention and eliminate the stream of disorganized thoughts that can fill your mind and cause stress. This process can lead to increased physical and emotional well-being.

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1) A statistically significant F test means that at least one variable in the model is statistically significant, but that does not mean that all of the variables in the model are statistically significant.
Select one: True

2) A high p-value (greater than alpha) indicates a significant predictor in the regression.
Select one: False

In statistics, a process known as test static is used to determine the significance of the observed result. A hypothesis test is also used for this test. Everywhere in statistical analysis, the P-value or probability value notion is applied. It establishes the statistical significance and significance testing measure. Let's go into detail about the P-value's definition, calculation, table, interpretation, and how to utilise it to determine the significance level, among other things, in this post.

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The minimum yield value of the key material should be determined based on the yield stress of the shaft, which is 36 kg/m², the dimensions of the key, and the safety factor of 2.

To ensure that the key smoothly transmits the torque of the shaft, it is essential to choose a key material with a minimum yield value that can withstand the applied forces without exceeding the yield stress of the shaft.

The dimensions of the key given are 20x20x120 mm. To calculate the torque transmitted by the key, we need to consider the dimensions and the applied forces. However, the specific values for the applied forces are not provided in the question.

The safety factor of 2 indicates that the material should have a yield strength at least twice the expected yield stress on the key. This ensures a sufficient margin of safety to account for potential variations in the applied forces and other factors.

To determine the minimum yield value of the key material, we would need additional information such as the expected torque or the applied forces. With that information, we could calculate the maximum stress on the key and compare it to the yield stress of the shaft, considering the safety factor.

Please note that without the specific values for the applied forces or torque, we cannot provide a precise answer regarding the minimum yield value of the key material.

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Answer:

1. The union of angle 3 and angle 4

2. Angle 6 = 30°

Therefore , the solution of the given problem of angle comes out to be  tangent is approximately 0.952 and its sine is roughly 0.729.

An angle is a shape in Euclidean geometry made up of two angles, or circular faces, that divide at the centre of the wall and the wall's apex. At their intersections, two rays can join to form an angle. Angle is another outcome of two entities interacting. They are known as dihedral angles. A two-dimensional curve can be created by arranging two line beams in various ways at their ends.

Here,

We must ascertain the values of y and x in order to determine the sine and tangent of the angle. We are aware of:

=> √(x² + y²) * cos(θ) = x/h * 21/29

When we square both edges, we obtain:

=> x² / (x^2 + y²) = 441/841

The result of multiplying both parts by (x² + y²) is:

=> x²= (441/841) (x²+ y²)

If we simplify, we get:

=> (400/841) x² = (441/841) y²

The result of dividing both parts by (441/841) is:

=> (400/441) x²/ y² = 1

=> (y/x)² = 400/441

When we square the two edges, we obtain:

=> y/x = ±(20/21)

=> y/x = 20/21

Therefore,

sin(θ) = y/√(x² + y²) = (20/21) / √(1 + (20/21)²) ≈ 0.729

=> tan(θ) = y/x = 20/21 ≈ 0.952

As a result, the angle's tangent is approximately 0.952 and its sine is roughly 0.729.

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In a normal distribution with a mean (µ) of 100 and a standard deviation (σ) of 10, approximately 80% of the values lie between the X values that are symmetrically distributed around the mean.

In a normal distribution, the area under the curve represents the probability of observing a value within a certain range. To find the X values between which 80% of the values lie, we need to determine the corresponding z-scores. The z-score represents the number of standard deviations a value is from the mean.

To find the z-scores, we use the z-table or a statistical calculator. Since we want to find the range that includes 80% of the values, we need to find the z-scores that correspond to the area of 0.1 on each tail of the distribution. The area between the mean and one z-score is 0.5, so we subtract 0.5 - 0.1 = 0.4.

Looking up the z-score for an area of 0.4 in the z-table, we find a z-score of approximately 0.253. To find the corresponding X values, we use the formula X = µ + (z * σ). For the lower X value, X = 100 + (0.253 * 10) = 102.53. For the upper X value, X = 100 - (0.253 * 10) = 97.47. Therefore, approximately 80% of the values are between 97.47 and 102.53, symmetrically distributed around the mean of 100.

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Answer:

y = 3x

Step-by-step explanation:

12x = 4y is the same as

4y = 12x  Now divide both sides by 4

y = 3x

The current density vector Jz that would produce the given vector potential A in cylindrical coordinates is Jz = -k/c r sin(θ).  

The current density required to produce the given vector potential A = kΦ is J_φ = k (∂Φ/∂ρ), where Φ is the magnetic flux.

First, let's define the cylindrical coordinates:

r = r(theta, z)

θ = θ(theta, z)

z = z

Now, we need to find the vector potential A = k Φ. Using the right-hand rule, we can determine the direction of the vector potential as the direction of the positive z-axis.

The curl of A in cylindrical coordinates is given by:

curl(A) = (1/r)(∂/∂r)(rA) + (1/rsin(θ))(∂/∂θ)(Asin(θ)) + (1/sin(θ))(∂/∂z)(Acos(θ))

Since we want A = k Φ, we have kA = -1/r(∂A/∂r) - 1/rsin(θ)(∂A/∂θ) - 1/sin(θ)(∂A/∂z).

Substituting the expression for A, we get:

k(1/r)(∂A/∂r) - 1/rsin(θ)(∂A/∂θ) - 1/sin(θ)(∂A/∂z) = -1

Now, we need to find the divergence of the magnetic field B, which is given by:

div(B) = (1/r)(∂B/∂r) + (1/rsin(θ))(∂B/∂θ) + (1/sin(θ))(∂B/∂z)

Using the Biot-Savart law, we can find the magnetic field B in cylindrical coordinates. The magnetic field is given by:

B = (1/4π)∫(J(r',θ',z') x r') x r dA'

where J(r',θ',z') is the current density vector.

We can substitute the expression for J in cylindrical coordinates and simplify the integral to obtain:

B = (1/4π)∫[(-1/r)(∫z' J(r',θ') dθ')r') - (1/sin(θ'))(∫z' J(r',θ') dz')] x r dA'

Now, we need to find the current density vector J. Using the Maxwell-Ampere law, we can find the curl of the electric field E in vacuum, which is given by:

curl(E) = -∂B/∂t

Substituting the expression for E in cylindrical coordinates, we get:

curl(E) = -∂B/∂t = (1/c) ∂(Jz)/∂t

where c is the speed of light in vacuum.

Now, we can substitute these expressions for B and curl(E) into the equation for the magnetic field and simplify to obtain:

k(1/r)(∂A/∂r) - 1/rsin(θ)(∂A/∂θ) - 1/sin(θ)(∂A/∂z) = -1

(1/c)(∂(Jz)/∂t) - 1/rsin(θ)(∂A/∂θ) - 1/sin(θ)(∂A/∂z) = -1

Solving these two equations simultaneously, we can find the constants k and Jz. Once we have these values, we can substitute them into the expression for the vector potential A to obtain:

A = k r sin(θ) + Jz/c

Therefore, the current density vector Jz that would produce the given vector potential A in cylindrical coordinates is Jz = -k/c r sin(θ).  

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Answer:

First one: Rotation

Second one: Translation

Third one: Reflection

Fourth one: Translation

Step-by-step explanation:

Answer:

I hope I helped you!

Answer:

population mean: 14

employees worked: 73%

Step-by-step explanation:

The mean is found by adding the years of service and dividing by the number of employees. The total years of service is 417, so the average is ...

average years worked = 417/30 = 13.9 ≈ 14 . . . years

__

The percentage of employees that have worked there at least 10 years is found by counting the number with 10 or more years of service and dividing that count by the total number of employees. The result is then expressed as a percentage.

(10 years or over)/(total number) = 22/30 = 0.73_3 (a repeating decimal) ≈ 73%

_____

Comment on the working

A spreadsheet can be helpful for this. It has a function that can calculate the mean for you. Sorting the years of service into order can make it trivially easy to count the number that are 10 or more, or you can write a function that will do the count for you. (Also, less than 10 means the years are a single digit. There are 8 single-digit numbers in your list.) The hard part is copying 30 numbers without error.

The standard deduction used for the minimum deduction that anyone may claim.

What is standard deduction?

Non-itemizers may deduct the standard deduction from their income before income tax is calculated. Taxpayers can select between itemized deductions and the standard deduction; nevertheless, they typically choose for the option that lowers their overall tax liability.

The standard deduction is a set sum of money that lowers the amount of income that is subject to taxation. The total of the basic standard deduction plus any additional standard deductions for old age or blindness constitutes your standard deduction.

Therefore, the standard deduction used for  minimum deduction that anyone may claim.

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Answer:

69

Step-by-step explanation:

23 on each shelf x 3 shelves = 69 books

Answer:

BCF is the correct answer

Answer:

b, c, and f

Step-by-step explanation:

because on the negative scale -5 is closer to 0 than -7, -4 is closer to 0 than -6, and -4 is closer to 0 than -5. So in this case b, c, and f are true because it is greater than. Sorry if I explained it badly, but im pretty sure its b, c, and f.

We can conclude that the null hypothesis is rejected. There is sufficient evidence to support the claim that the mean cost in Utah hospitals is below the national mean of $1231.

H₀: μ ≥ 1231 (The mean cost in Utah hospitals is greater than or equal to the national mean)

Hₐ: μ < 1231 (The mean cost in Utah hospitals is below the national mean)

Given

The test statistic for a one-sample t-test is given by

t = (x - μ) / (σ / √n)

Substituting we have

t = (1103 - 1231) / (252 / √25)

≈ -6.103

To determine the critical value, we need to find the critical t-value at the 5% significance level with degrees of freedom

(df) equal to (n - 1)

= (25 - 1)

= 24.

Using a t-distribution table or calculator, the critical value is approximately -1.711.

Since the calculated test statistic (-6.103) is smaller than the critical value (-1.711) and falls into the critical region, we reject the null hypothesis.

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Answer:

The formula makes sense

Step-by-step explanation:

For illustration purposes, we will assume the yard is a rectangle ( such assumption does not in any way invalid the arguments that follows

Dimensions of the yard

L = 10 m

w = 4 m

A = 40 m²

Arguments:

1.- The required time (t)  is proportional to the area (A). That means ( keeping all parameters fixed but Area ) we need more time to mow a bigger area yard. Then  t ∝ A

You can see that if the yard is 40 m²  you will take let´s say 0,5 day and you will need more time if the area is 100 m² ( it seems obvious )

2.- Let´s now assume the width of the mower is 1 m if you move along the length you will need to go forward and backward  4 times. Now think about a mower of 4 m ( it does not matter if that machine exists or no, is just a mental experiment) in that case you only need one pass, then the required time is inversely proportional to the width of the mower. That means a bigger width of the mower minor required time. Then t ∝ 1/w

3.-If now we keep the width of the mower but increased the speed of the machine we will reduce the working time. Time is an inversely proportional function of the speed of the machine since each required pass will take less time. Then  t ∝ 1/v

We have evaluated three parameters A, w, and v ( area, the width of the mower,  and speed ) and demonstrated the way each of these parameters influences the time, so far we don´t know how much each of them contributes  in the total output, for that we have to measure and get conclusions, Furthermore coefficient 1,15 (in formula seems to take into account the hole combinations of the factors)

you would need C.) 18 cubes

Answer:C.18

Step-by-step explanation:

Answer:

The line on the graph would be a flat line

Step-by-step explanation:

The line would not move up or down at all.

Answer:

A graph having a constant rate of change equal to zero means that the value of y is constant. A graph with slope zero is a horizontal line.

Answer:

44

Step-by-step explanation:

3x-5+x+1=180 [linear pair]

4x-4=180

4x=176

x=44

Answer:

2 grams

Step-by-step explanation:

One can see that the given diagram is that of a balancing scale, meanig that both sides are equal to each other. Therefore,  if one calls the weight of the triangle (t), then one can form an equation. Keep in mind that it is given that the square weighs (4) grams, and therefore, the square doesn't need a variable representation.

t + 4 + 4 = t + t + t + 4

Simplify,

t + 8 = 3t + 4

Inverse operations,

t + 8 = 3t + 4

   -4          -4

t + 4 = 3t

-t         -t

4 = 2t

/2   /2

2 = t

Answer:

2 grames

Step-by-step explanation:

Based on the  calculation done, one can't have a negative number, thus, the regular polygon does not exist.

For a regular polygon of N sides, the measure of each interior angle is:A = (N - 2)*180/N

Here we want to have an interior angle of 220°, then we need to solve the equation:220° =  (N - 2)*180/N

For N, so let's do that: N*220° = (N - 2)*180°We can see that this equation has no solution for N integer:

N*220° = N*180° - 360°N*220° - N*180° = -360°N*40° = -360°N = -360°/40° = -9

We can't have a negative number, thus, the regular polygon does not exist.

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Answer:

g

Step-by-step explanation:

g

Answer:

(4a +4b +1)(4a+4b -1)

Step-by-step explanation:

16 (a + b)(a + b) - 1 = 4²*(a+b)² - 1

                             = [4(a+b)]² - 1²

Here, x = 4(a+b) and y = 1

                             = [4(a+b) -1] [4(a+b) + 1]

                             = [4a+4b - 1] [4a+ 4b + 1]

Given :

An adults heart beats about 2100 times every 30 minutes.

A baby beats about 2600 times every 20 minutes.

To Find :

How many more heart beat baby have than adult in 60 min .

Solution :

Now , total number of heart beats of adult in 60 min , \(T_a=2100\times 2=4200\)

Also , total number of heart beats of adult in 60 min , \(T_b=2600\times 3=7800\)

Difference between them , \(7800-4200=3600\) beats .

So , baby have 3600 more heart beats than adult .

Hence , this the required solution .