find the point on the curve r(t)=(2cost 2sint e^t)

The ratio of the tangent of angle P of the given problem is: 36/77

We are given the parameters of the right angle triangle as:

R=90°

RQ = 36

PR = 77

QP = 85.

The six trigonometric ratios are sine (sin), cosine (cos), tangent (tan), cotangent (cot), cosecant (cosec), and secant (sec). In geometry, trigonometry is a branch of mathematics that deals with the sides and angles of a right-angled triangle. Therefore, trigonometric ratios are calculated with respect to sides and angles

The three main trigonometric ratios are:

sin x = opposite/hypotenuse

cos x = adjacent/hypotenuse

tan x = opposite/adjacent

Thus:

tan P = RQ/PR

tan P = 36/77

Thus, that is the value of tan P

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The quadratic function for the data-set in the table is given as follows:

y = 3x² + 2x + 1.

The standard definition of a quadratic function is given as follows:

y = ax² + bx + c.

When x = 0, y = 1, from the table, hence the coefficient c is given as follows:

c = 1.

Hence:

y = ax² + bx + 1.

When x = 1, y = 6, hence:

a + b + 1 = 6

a + b = 5.

b = 5 - a.

When x = 2, y = 17, hence:

4a + 2b + 1 = 17

4a + 2b = 16

4a + 2(5 - a) = 16

2a = 6

a = 3.

b = 5 - a = 5 - 3 = 2.

Hence the function is:

y = 3x² + 2x + 1.

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The probability that the mean of the first sample will be larger than the mean of the second sample is approximately 0.976 or 97.6%.

To find the probability that the mean of the first sample will be larger than the mean of the second sample, we can use the central limit theorem and the formula for the standard error of the difference between two means:

SE = sqrt[(s1^2/n1) + (s2^2/n2)]

Where SE is the standard error, s1 and s2 are the standard deviations of the two populations, n1 and n2 are the sample sizes, and ^2 represents squared.

Plugging in the given values, we get:

SE = sqrt[(12^2/30) + (15^2/36)]
SE = 3.535

Next, we need to standardize the difference between the two sample means by dividing it by the standard error:

z = (x1 - x2) / SE

Where z is the z-score, x1 and x2 are the sample means, and SE is the standard error.

In this case, we want to find the probability that the mean of the first sample is larger than the mean of the second sample, so we are interested in the area to the right of the z-score we calculate. Using a standard normal distribution table or calculator, we can find this probability to be:

P(z >  -1.971) = 0.976

Therefore, the probability that the mean of the first sample will be larger than the mean of the second sample is approximately 0.976 or 97.6%.

For your question about the probability that the mean of the 1st random sample (size 30, mean 78, standard deviation 12) will be larger than the mean of the 2nd random sample (size 36, mean 85, standard deviation 15) from two different populations, we need to calculate the difference in the means and the standard error of the difference.

First, we find the difference in means: μ1 - μ2 = 78 - 85 = -7

Next, we calculate the standard error of the difference: SE = sqrt[(σ1²/n1) + (σ2²/n2)] = sqrt[(12²/30) + (15²/36)] ≈ 3.39

Now we need to find the z-score associated with the difference in means: z = (X1 - X2 - (μ1 - μ2)) / SE = (0 - (-7)) / 3.39 ≈ 2.06

Finally, we look up the probability associated with this z-score in a standard normal table or use a calculator. For z = 2.06, the probability that the mean of the 1st sample will be larger than the mean of the 2nd sample is approximately 0.0197, or 1.97%.

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Reason:

circumference = pi*diameter

Its diameter in meters is 12 meters.

The amount of money needed per month to reach a retirement savings goal of $100,000 is $106

Using the formula for monthly compound interest:

FV = P * ((1 + r)^n - 1) / r

where:

P = $50

r = 2.5% / 12 = 0.0020833

n = 55 - 21 * 12 = 408

FV = 50 * ((1 + 0.0020833)^408 - 1) / 0.0020833 = $70,253.46

To find out how much more money is needed each month to reach a goal of $100,000, we can set up an equation:

$70,253.46 + P * ((1 + 0.0020833)^408 - 1) / 0.0020833 = $100,000

Solving for P:

P = (100,000 - 70,253.46) * 0.0020833 / ((1 + 0.0020833)^408 - 1) = $105.74

Rounding to the nearest dollar, the answer is $106.

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Answer: [tex]\frac{5}{8}[/tex]

Step-by-step explanation:

The null hypothesis would be that there is no significant difference in productivity between the four programs. The alternative hypothesis would be that there is a significant difference in productivity between at least two of the programs.

In this scenario, Excel is trying to increase the productivity of its line workers and is testing four different programs. A sample of twenty employees has been randomly assigned to one of the programs, and their daily output has been recorded in the file named "ahmadi." We will use these data to determine if any of the programs are effective in increasing productivity. The null and alternative hypotheses can be stated as follows:
Null Hypothesis (H0): There is no significant difference in productivity between the four programs. In other words, none of the programs have a meaningful impact on the productivity of the line workers.
Alternative Hypothesis (H1): At least one of the four programs has a significant impact on the productivity of the line workers, leading to increased output compared to the other programs.
To test these hypotheses, you would typically perform an analysis of variance (ANOVA) on the data provided in the "ahmadi" file. If the ANOVA result is significant, you would reject the null hypothesis and accept the alternative hypothesis, indicating that at least one program effectively increases productivity.

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The slope of a function represents the rate of change and steepness of the line.

Without seeing the graph, it is difficult to determine which function best models the data. However, I can explain what the slope of a function represents in a general sense.

In a linear function of the form y = mx + b, where m is the slope and b is the y-intercept, the slope represents the rate of change of the dependent variable (y) with respect to the independent variable (x).

In other words, the slope tells us how much y changes for each unit increase in x. If the slope is positive, then y increases as x increases. If the slope is negative, then y decreases as x increases.

The magnitude of the slope also tells us how steep the line is. A larger slope (in absolute value) means that the line is steeper, while a smaller slope means that the line is flatter.

In summary, the slope of a function represents the rate of change and steepness of the line.

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So the vector form of the quadratic function y = x² - 8x + 17 is: y = (x - 4)² + 1.

To change from standard form to vertex form, we need to complete the square.

First, we group the x-terms together and factor out any common coefficient of x², giving:

y = x² - 8x + 17

y = 1(x² - 8x) + 17

Next, we need to add and subtract a constant inside the parentheses to complete the square. To determine this constant, we take half of the coefficient of x (-8) and square it:

(-8/2)² = 16

So we add and subtract 16 inside the parentheses:

y = 1(x² - 8x + 16 - 16) + 17

Now we can factor the quadratic expression inside the parentheses as a perfect square:

y = 1[(x - 4)² - 16] + 17

Simplifying and rearranging terms, we get:

y = (x - 4)² + 1

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The work done by the force field in moving the object from (0,3) to (4,5) along the given path is -190.

To find a function f(x,y) such that F= -∇f, we need to find the potential function that corresponds to the given force field F.

We can do this by integrating each component of F with respect to its corresponding variable. That is,

f(x,y) = ∫F.dx = ∫(12x^2y+4)dx + C(y)

where C(y) is an arbitrary function of y that arises due to the fact that we are integrating with respect to x only.

To find C(y), we differentiate f(x,y) with respect to y and compare it with the y-component of F:

d/dy[f(x,y)] = ∫∂F/∂y.dx = x(4x^2-1)

Comparing this with the y-component of F, we have:

4x^2-1 = 4x^2y + C'(y)

where C'(y) is the derivative of C(y) with respect to y. To determine C(y), we integrate this expression with respect to y:

C(y) = ∫(4x^2-1-4x^2y)dy = 4x^2y - 2y^2 - y + K

where K is an arbitrary constant of integration.

Therefore, the potential function f(x,y) is:

f(x,y) = 4x^3y + 4x - xy^2 - y + K

where K is an arbitrary constant.

Now, we can use this potential function to find the work done by the force field F in moving an object from (0,3) to (2,3), and then from (2,3) to (4,5) along a piecewise linear path.

Along the first segment of the path from (0,3) to (2,3), the change in potential energy is given by:

Δf = f(2,3) - f(0,3) = (32+8-27-3) - (0+0-9-3) = 4

The work done by the force field along this segment is equal to the negative of the change in potential energy, so we have:

W1 = -Δf = -4

Along the second segment of the path from (2,3) to (4,5), the change in potential energy is given by:

Δf = f(4,5) - f(2,3) = (320+16-75-5) - (32+8-27-3) = 186

The work done by the force field along this segment is again equal to the negative of the change in potential energy, so we have:

W2 = -Δf = -186

The total work done by the force field in moving the object along the entire path is therefore:

W = W1 + W2 = -4 - 186 = -190

Therefore, the work done by the force field in moving the object from (0,3) to (4,5) along the given path is -190.

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Confidence Interval = Mean ± (Critical Value * Standard Deviation / √n). In this formula, the Mean represents the average time, the Critical Value is determined by your desired level of confidence, the Standard Deviation is 21 as mentioned, and n is the sample size (25 in this case).

Your question appears to be related to a study involving the effectiveness of a war strategy and might involve some statistical concepts, such as mean and standard deviation.

To estimate the time for a population with a given mean and standard deviation, you would typically use a confidence interval. This interval gives you a range of values within which the true population mean is likely to lie.

To calculate a confidence interval, use the following formula:

Confidence Interval = Mean ± (Critical Value * Standard Deviation / √n)

In this formula, the Mean represents the average time, the Critical Value is determined by your desired level of confidence, the Standard Deviation is 21 as mentioned, and n is the sample size (25 in this case).

Once you calculate the confidence interval, you can provide an estimate for the time a population might take in relation to the war strategy being studied. Remember to round the values as needed.

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If the sales 5 years ago were $25,000, then we can calculate this year's sales as follows:

Calculate the percentage increase from 5 years ago to this year:

Percentage increase = 180% - 100% = 80%

Calculate the amount of increase in sales:

Amount of increase = Percentage increase x Sales 5 years ago

Amount of increase = 0.8 x $25,000 = $20,000

Add the amount of increase to the sales 5 years ago to find this year's sales:

This year's sales = Sales 5 years ago + Amount of increase

This year's sales = $25,000 + $20,000 = $45,000

Therefore, this year's sales for the art supply company were $45,000.

The general solution will depend on the values of k, m, and the damping coefficient 8/m. To find the equation of motion for this system.

We can use Newton's second law:

F = ma

where F is the net force acting on the system, m is the mass of the object, and a is the acceleration.

The net force in this case is the sum of the external force and the force due to the spring:

F = f(t) - kx

where k is the spring constant and x is the displacement from equilibrium.

The damping force is given as 8 times the instantaneous velocity, which we can write as:

F_damp = -8v

where v is the velocity of the object.

Putting everything together, we get:

m(d^2x/dt^2) = f(t) - kx - 8v

Substituting in the given values, we have:

1(d^2x/dt^2) = 2 sin 4t - kx - 8(dx/dt)

To simplify this equation, we can use the fact that x is a displacement and therefore the second derivative of x with respect to time is the acceleration. So we can rewrite the equation as:

a = (2/g)sin(4t) - (k/m)x - 8v/m

where g = 32 ft/s^2 is the acceleration due to gravity.

To solve for x, we can use the fact that the velocity is the derivative of displacement with respect to time:

v = dx/dt

Taking the derivative of the equation for velocity, we get:

a = d^2x/dt^2 = dv/dt = d/dt(dx/dt) = d/dt(v) = d/dt(-8v/m - (k/m)x + 2/g sin(4t))

Simplifying this expression, we get:

a = -8/m(dv/dt) - k/m(dx/dt) + (8/g)cos(4t)

Substituting in the value of a from the previous equation, we have:

(2/g)sin(4t) - (k/m)x - 8v/m = -8/m(dv/dt) - k/m(dx/dt) + (8/g)cos(4t)

Rearranging and simplifying, we get:

d^2x/dt^2 + (k/m + 8/m)dx/dt + k/mx = (16/g)cos(4t) - (2/g)sin(4t)

This is a second-order differential equation that we can solve using standard techniques, such as the method of undetermined coefficients or Laplace transforms. The general solution will depend on the values of k, m, and the damping coefficient 8/m.

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The probability that Rob completes the race successfully is:

1 - 0.1 - 0.09 + 0.02 = 0.83

The probability of getting an odd number or a number divisible by 4 can be found by adding the probabilities of getting an odd number and a number divisible by 4, and subtracting the probability of getting a number that is both odd and divisible by 4 (which is 4). The probabilities of getting an odd number, a number divisible by 4, and a number that is both odd and divisible by 4 are:

Odd number: There are 6 odd numbers out of 12 total numbers, so the probability of getting an odd number is 6/12 = 1/2.

Number divisible by 4: There are 3 numbers divisible by 4 (4, 8, 12), so the probability of getting a number divisible by 4 is 3/12 = 1/4.

Number that is both odd and divisible by 4: The only number that is both odd and divisible by 4 is 4, so the probability of getting this number is 1/12.

Therefore, the probability of getting an odd number or a number divisible by 4 is:

1/2 + 1/4 - 1/12 = 5/12

The probability of getting a red face or a white face can be found by adding the probabilities of getting a red face and a white face. The probability of getting a red face is 2/6 = 1/3, and the probability of getting a white face is also 1/3. Therefore, the probability of getting a red face or a white face is:

1/3 + 1/3 = 2/3

To find the probability that Rob completes the race successfully, we need to subtract the probability of getting a flat tire, the probability of the chain breaking, and the probability of both occurring from 1 (the probability of completing the race successfully). The probability of getting a flat tire is 0.1, the probability of the chain breaking is 0.09, and the probability of both occurring is 0.02. Therefore, the probability that Rob completes the race successfully is:

1 - 0.1 - 0.09 + 0.02 = 0.83

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The work done in pumping water out over the top edge to empty the tank is approximately 9984 foot-pounds, rounded to one decimal place.

To calculate the work done in pumping water out of the tank, we will use the formula:

Work = weight of water × height to be lifted

First, let's find the volume of the tank:

Next, find the total weight of the water in the tank:

Since the height of the tank is 4 feet, and we need to pump the water over the top edge, we can assume the average height the water needs to be lifted is half the height of the tank, which is 2 feet.

Now, we can calculate the work done:

So, the work done in pumping water out over the top edge to empty the tank is approximately 9984 foot-pounds, rounded to one decimal place. Here is the visualization:

_______

|       |

|       | 4 feet

|       |

|_______|

  5 feet

|\

| \

h  \

|___\____

    5 feet

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If line q passes through points (1,5) and (8, 2). line r is perpendicular to q, Then the slope of line r is 7/3.

The slope of a line is a measure of how steep the line is, or how much the line rises or falls as we move horizontally along it. It is defined as the ratio of the change in the vertical (y) coordinate to the change in the horizontal (x) coordinate between any two points on the line. In other words, it is the "rise" divided by the "run".

The formula for finding the slope between two points (x1, y1) and (x2, y2) on a line is:

slope = (y2 - y1) / (x2 - x1)

The slope can be positive, negative, zero or undefined. A positive slope means the line rises as we move from left to right, a negative slope means the line falls as we move from left to right, a slope of zero means the line is horizontal and a slope that is undefined means the line is vertical.

The slope of the line q passing through the points (1,5) and (8,2) can be found using the slope formula:

the slope of q = (change in y) / (change in x)

= (2 - 5) / (8 - 1)

= -3/7

Since line r is perpendicular to line q, the slope of line r will be the negative reciprocal of the slope of line q. That is:

the slope of r = -1 / slope of q

= -1 / (-3/7)

= 7/3

Therefore, the slope of line r is 7/3.

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(a) No conditions. (b) The playlist must consist of exactly 3 songs from each artist. (c) The playlist must consist of at least 2 songs from each artist.

Working:

To build a playlist of 6 songs from 25 unique songs, we can use the formula for combinations:

nCr = n! / r!(n-r)!

where n is the total number of songs and r is the number of songs we want to include in the playlist.

So the number of ways to build the playlist is:

25C6 = 25! / 6!(25-6)! = 177,100

Therefore, there are 177,100 ways to build the playlist without any conditions.

(b) The playlist must consist of exactly 3 songs from each artist.

To build a playlist of 6 songs with exactly 3 songs from each artist, we can use the formula for combinations again:

nCr = n! / r!(n-r)!

We need to choose 3 songs from artist A and 3 songs from artist B, so we can calculate the number of ways to do this separately:

Number of ways to choose 3 songs from artist A:

10C3 = 10! / 3!(10-3)! = 120

Number of ways to choose 3 songs from artist B:

15C3 = 15! / 3!(15-3)! = 455

To get the total number of ways to build the playlist, we can multiply these two numbers together:

120 * 455 = 54,600

Therefore, there are 54,600 ways to build the playlist with exactly 3 songs from each artist.

(c) The playlist must consist of at least 2 songs from each artist.

To build a playlist of 6 songs with at least 2 songs from each artist, we can break this down into cases:

Case 1: 2 songs from artist A and 4 songs from artist B

Number of ways to choose 2 songs from artist A:

10C2 = 10! / 2!(10-2)! = 45

Number of ways to choose 4 songs from artist B:

15C4 = 15! / 4!(15-4)! = 1,386

Total number of ways for case 1:

45 * 1,386 = 62,370

Case 2: 3 songs from artist A and 3 songs from artist B

We already calculated the number of ways for this case in part (b):

54,600

Case 3: 4 songs from artist A and 2 songs from artist B

Number of ways to choose 4 songs from artist A:

10C4 = 10! / 4!(10-4)! = 210

Number of ways to choose 2 songs from artist B:

15C2 = 15! / 2!(15-2)! = 105

Total number of ways for case 3:

210 * 105 = 22,050

Total number of ways to build the playlist with at least 2 songs from each artist:

62,370 + 54,600 + 22,050 = 139,020

Therefore, there are 139,020 ways to build the playlist with at least 2 songs from each artist.

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Answer:

down....

Step-by-step explanation:

-1.231807859542612e+17

Answer: 5

Step-by-step explanation:

The measures of the angles and the proofs are shown below

Circle 4

The angle at the centre is twice the angle at the circumference

So, we have

360 - ∠BOD = 2 * 110

Evaluate

∠BOD = 140

Circle 5

Angle in a semicircle is 90 degrees

So, we have

∠ABD + 19 = 90

∠ABD = 71

Angles in the same segment are equal

So, we have

∠ACB = 19

Circle 6

Using the same theorem above, we have

5y + y = 90

y = 15

So, we have

∠BAC = 5 * 15

∠BAC = 75

Circle 7

By the corresponding angle theorem, we have

∠ABO = ∠CDO

By the sum of opposite internal angles in a triangle, we have

∠BOC = ∠BAO + ∠ABO

Substitute ∠ABO = ∠CDO

∠BOC = ∠BAO + ∠CDO --- proved

The angles at the edges are equal because they are corresponding angles of congruent isosceles triangles

Cyclic Quadrilateral

The opposite angles of cyclic quadrilaterals add up to 180 degrees

So, we have

180 - ∠x + 180 - ∠y = 180

Evaluate

∠x + ∠y = 180 --- proved

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Using algebra, the numbers multiply by 10 and add up to -10 are -5 - √(15) and -5 + √(15).

To find two numbers that multiply to 10 and add up to -10, we can use algebra. Let's call the two numbers we're looking for x and y. We know that:

xy = 10

We also know that:

x + y = -10

Now we can solve for one of the variables in terms of the other. For example, we can solve for x in terms of y by rearranging the second equation:

x = -y - 10

Now we can substitute this expression for x into the first equation:

(-y - 10)y = 10

Expanding and simplifying, we get:

-y² - 10y - 10 = 0

Solving for y using the quadratic formula, we get:

y = (-(-10) ± √((-10)² - 4(-1)(-10))) / (2(-1))

y = (10 ± √(60)) / 2

So the two possible values for y are:

y = 5 + √(15)

y = 5 - √(15)

Finally, we can plug each of these values for y back into x = -y - 10 to get the corresponding values for x:

x = -5 - √(15)

x = -5 + √(15)

Therefore, the two numbers that multiply by 10 and add up to -10 are approximately -5 - √(15) and -5 + √(15).

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a) State the hypotheses in symbols:
H₀: p = 0.114 (null hypothesis: the county's proportion of vacant housing units is equal to the national proportion)
H₁: p ≠ 0.114 (alternative hypothesis: the county's proportion of vacant housing units is different from the national proportion)
b) Assumptions and conditions for 1-Proportion z-Test:
A. Randomization Condition
B. 10% Condition
D. Success/Failure Condition
E. Nearly Normal Condition
c) To perform a 1-Proportion z-Test, enter the following in your calculator:
1-PropZTest(0.114, 120/850, 850)
Test statistic (z): ≈ 2.24
P-value: ≈ 0.025
d) Sketch of the test distribution:
- Label the x-axis with the test statistic (z ≈ 2.24)
- For a two-tailed test, divide the p-value in half (0.025/2 = 0.0125) and label each half of the area under the curve
e) Conclusion:
Since the p-value (0.025) is less than the significance level (α = 0.05), we reject the null hypothesis. There is sufficient evidence to conclude that the proportion of vacant housing units in the county is different from the national proportion of 11.4%.

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The pascals row triangle is solved and the last row is A = 1 5 10 10 5 1

Given data ,

Let the pascals triangle be represented as A

Now , the value of A is

1

1 1

1 2 1

1 3 3 1

1 4 6 4 1

Based on the pattern observed in Pascal's Triangle, the conjecture for the numbers in the 6th row would be:

1 5 10 10 5 1

Each integer in Pascal's Triangle equals the sum of the two numbers immediately above it. The numbers in the row are added to the first and last number, which is 1, to get the numbers in the middle.

This pattern is repeated in the sixth row, where the intermediate numbers are 5, 10, 10, 5, and the first and last digits are 1.

Hence , the pascals triangle is solved

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When a point is the solution of a system of equations, it means that all of the equations in the system are simultaneously satisfied by the values of the variables.

Use the substitution method to solve the system of equations when one of the variables in one of the equations can be easily isolated or solved for.

The system's remaining equations can then be modified to reflect the variable's expression, creating a new set of equations with one less variable. The system might be easier to manually solve as a result.

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The probability that someone who passed the test did so on the third attempt is approximately 0.298

Let P1, P2, and P3 be the probabilities of passing the test on the first, second, and third attempts, respectively.

We are given that P1 = 0.30, P2 = 0.55, and P3 = 0.15.

Using Bayes' theorem to find the probability that someone who passed the test did so on the third attempt:

P(P3 | pass) = P(pass | P3) * P(P3) / P(pass)

The P(pass) is the probability of passing the test, which is the sum of the probabilities of passing on each attempt:

P(pass) = P1 + (1 - P1) * P2 + (1 - P1) * (1 - P2) * P3

P(pass) = 0.30 + 0.70 * 0.55 + 0.70 * 0.45 * 0.15

P(pass) = 0.5025

P(pass | P3) is the probability of passing the test given that it is the third attempt, which is simply P3:

P(pass | P3) = P3 = 0.15

Therefore, we can plug in the values and solve for P(P3 | pass):

P(P3 | pass) = 0.15 * P3 / P(pass)

P(P3 | pass) = 0.15 / 0.5025

P(P3 | pass) = 0.298

So the probability that someone who passed the test did so on the third attempt is approximately 0.298, or 29.8%.

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The Area of triangle with the given height 10 cm and base 6 cm is calculated to be  30 square centimeters.

To calculate the area of a triangle with height 10 cm and base 6 cm, we can use the formula:

Area = (1/2) x Base x Height

Substituting the given values, we get:

Area = (1/2) x 6 cm x 10 cm

Area = 30 square cm

Therefore, the area of the triangle is 30 square centimeters.

We can see that the area of the triangle is calculated by multiplying the base and height and then dividing the result by 2. In this case, the height of the triangle is 10 cm and the base is 6 cm, so the area is 30 square cm. This formula can be used to calculate the area of any triangle, regardless of its size or shape.

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The complete question is :

Calculate the Area of triangle with the height 10 cm and base 6 cm .

The yield is given as 6.316% on the corporate bond

Тhe yiеld оn а corporаte bоnd rеfеrs tо thе return аn investоr cаn expeсt tо eаrn from рurchаsing thе bоnd. It is usuаlly exрressed аs а percentаge of thе bоnd's fаce vаlue or mаrket price.

Тhere аre different tyрes of yiеld meаsurements for bоnds, suсh аs current yiеld, yiеld tо mаturity, аnd yiеld tо cаll, eаch prоviding specific insights intо thе bоnd's potentiаl rеturns.

Interest payment = Face value × Interest rate

$1,000 × 0.06

= 60 dollars

Current yield = Interest payment / Market price

Current yield = $60 / $950

= 0.06316

= 6.316%

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Answer:

C. $5.31

Step-by-step explanation:

35.40*0.15=5.31

0.15 is 15%

Answer:

The equation 2 has a graph which is a straight line.

Step-by-step explanation:

Why?

We can know which of the given equations has a graph which is a straight line just checking the exponents of the variables.

We must remember that every variable that has an exponent equal or higher than 2 (quadratic) will not have a straight line as a graphic.

So, checking the exponents from the given equations, we have:

Hence, we can see that the only equation that has a linear term (straight line graph), is the second equation.

Answer:

Step-by-step explanation:

10

It is easier to obtain an accurate estimate of the binomial parameter π when it is close to 0 or 1 because in these cases, the number of successes or failures is more extreme, and the distribution is more skewed.

This means that the sample size needed to achieve a certain level of precision is smaller compared to when π is close to 1/2, where the distribution is more symmetrical and the sample size needed to obtain the same level of precision is larger.

Additionally, when π is close to 1/2, there is more variability in the data, making it more difficult to differentiate between the true value of π and the value obtained from the sample.

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