If P(A) = 0.69, P(B) = 0.4, and P(A or B) = 0.73, are A and B mutually exclusive? Yes No

Answer:

try 4

Step-by-step explanation:

it looks like if you moved the other 4 where x is it would be the same.

Answer:

if dis question is from similar triangles then this is my answer , x = 3.5

Step-by-step explanation:

( x/7) = (4/8) , x= ( 4 × 7 ) / 8 = 3.5

The fixed point traces out the diameter of the larger circle in a Tusi couple.

A Tusi couple is a mathematical device used to convert linear motion into circular motion. It consists of two circles, one smaller and one larger, with the smaller circle rolling inside the larger circle. As the smaller circle rolls, a fixed point on its circumference traces out the diameter of the larger circle.

To understand this concept, imagine the smaller circle placed inside the larger circle, touching at a single point. As the smaller circle rolls around the interior of the larger circle, the fixed point moves along a straight path, which is the diameter of the larger circle.

The fixed point's movement is a result of the combination of the circular motion of the smaller circle and its linear motion due to rolling. This mechanism allows for the conversion of the smaller circle's linear motion into the fixed point's circular motion, illustrating the geometric principle behind the Tusi couple.

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Answer:

Step-by-step explanation:

To find the inverse of a matrix, we need to put it in the reduced row echelon form (RREF) using elementary row operations. We can augment the given matrix with an identity matrix of the same size, and then apply the row operations to both matrices simultaneously until the left-hand side becomes an identity matrix. The right-hand side will then be the inverse of the original matrix.

Here are the steps:

[ 5 3 | 1 0 ]

[13 8 | 0 1 ]

R1/5 -> R1:

[ 1 3/5 | 1/5 0 ]

[13 8 | 0 1 ]

R2-13R1 -> R2:

[ 1 3/5 | 1/5 0 ]

[ 0 1/5 | -13 1 ]

R1-(3/5)R2 -> R1:

[ 1 0 | 26/5 -3/5 ]

[ 0 1 | -13 1/5 ]

So, the inverse matrix is:

[ 26/5 -3/5 ]

[-13 1/5 ]

the critical numbers, from smallest to largest, are 0, 1, and 4/7.

To find the critical numbers of the function f(x) = x^4(x-1)^3, we need to find the values of x where the derivative of f(x) is equal to zero or undefined.

First, we find the derivative of f(x) using the product rule and the chain rule:

f'(x) = 4x^3(x-1)^3 + 3x^4(x-1)^2(3-x)

Setting f'(x) equal to zero, we get:

4x^3(x-1)^3 + 3x^4(x-1)^2(3-x) = 0

Simplifying this equation, we get:

x(x-1)^2(16x^2 - 28x + 9) = 0

The critical numbers are the solutions to this equation. We can solve for x by setting each factor equal to zero:

x = 0, x = 1, and x = 9/16 or x = 3/4 (using the quadratic formula)

So the critical numbers of the function f are:

0, 3/4, 1, and 9/16 (in order from smallest to largest).
Hi! To find the critical numbers of the function f(x) = x^4(x - 1)^3, we first need to find the first derivative, f'(x), and then solve for x when f'(x) = 0 or when f'(x) is undefined.

The first derivative, f'(x), can be found using the product rule: (uv)' = u'v + uv'.
u = x^4, u' = 4x^3
v = (x - 1)^3, v' = 3(x - 1)^2

Applying the product rule:
f'(x) = 4x^3(x - 1)^3 + x^4 * 3(x - 1)^2

Now we need to find the critical numbers by setting f'(x) to 0:

0 = 4x^3(x - 1)^3 + 3x^4(x - 1)^2

Factor out the common terms:

0 = x^3(x - 1)^2 [4(x - 1) + 3x]

0 = x^3(x - 1)^2(4x - 4 + 3x)

Simplify:

0 = x^3(x - 1)^2(7x - 4)

The critical numbers are the solutions for x:
x = 0, x = 1, x = 4/7

So the critical numbers, from smallest to largest, are 0, 1, and 4/7.

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the answer is D) 0.9099, which is the closest probability to 0.8085

To answer this question, we can use a one-sample proportion hypothesis test with a significance level of 0.05. Our null hypothesis is that the population proportion who support the incumbent senator is 0.48, and our alternative hypothesis is that the population proportion is higher than 0.48.

We can calculate the standard error of the sample proportion as follows:

SE = sqrt[(0.48)(0.52)/500] = 0.034

We can then calculate the z-score for the sample proportion:

z = (0.51 - 0.48)/0.034 = 0.88

Using a standard normal distribution table, we can find that the probability of obtaining a z-score of 0.88 or higher is 0.1915.

However, because our alternative hypothesis is one-sided (we are testing for a higher proportion), we need to find the area under the curve to the right of the z-score. This probability is 1 - 0.1915 = 0.8085.

Therefore, the answer is D) 0.9099, which is the closest probability to 0.8085. This means that if the population proportion who supported the incumbent senator is really 48%, there is an 90.99% chance that we would see poll results of 51% or higher.

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The values of x and y and the m/T are x = 11, y = 6 and angle T = 61 degrees

Congruent shapes are two or more shapes that have exactly the same size and shape.

In other words, they are identical when superimposed. To show that two shapes are congruent, we must show that all corresponding sides and angles are equal in measure.

Using the above as a guide, we have the following:

90 - (8x - 27) = 29

When solved for x, we have

x = 11

Next, we have

3y + 7 = 25

When solved for x, we have

y = 6

Lastly, we have

T = R = 8x - 27

T = 8 * 11 - 27

Evaluate

T = 61

Hence, the angle T is 61 degrees

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Round 4,568,299 to the nearest 10,000 is 4570000.

To concentrate on the digit in the ten-thousands and thousands place in 4,568,299 because you are rounding to the closest 10,000.

The number that will either "go up" by one digit or "stay the same" is 7, which is the digit in the ten-thousands place. The nearest right digit, in this case 8, must be considered when determining whether to round up or down. You increase 7 to 8 since 8 is more than 5.

Then convert all the numbers that are to the right of the rounded 8 to 0 to get you. In plain English, 299 becomes 300. 68300 becomes 69000 as a result. After that, 4569000 becomes 4570000.

Therefore, Round 4,568,299 to the nearest 10,000 is 4570000.

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The correct answer is (d) 61.

When calculating the interval for the population mean with an unknown standard deviation, we use the t-distribution. The formula for calculating the degrees of freedom for the t-distribution is (n-1), where n is the sample size.

In this case, the sample size is 61, so the degrees of freedom would be (61-1) = 60. However, it is important to note that when calculating the interval for the population mean using a sample, we add an additional degree of freedom to account for the estimation of the sample standard deviation. Therefore, the total degrees of freedom for this problem would be (61-1) + 1 = 61.

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Answer:

Step-by-step explanation:

Let O be the center of the circle, and let x be the length of the radius of the circle. Since segment DE is a minor arc, it subtends an angle of less than 180 degrees at the center of the circle, and its length is given by:

length of DE = (angle AOB / 360) * 2 * pi * x

We are given that the length of DE is 52 cm, and we know that angle AOB is 2 times angle ACB, since these angles subtend the same arc. Therefore, we have:

angle AOB = 2 * angle ACB

We can use the law of cosines to find angle ACB:

cos(ACB) = (AB^2 + BC^2 - AC^2)/(2 * AB * BC)

cos(ACB) = (25 + 64 - 81)/(2 * 5 * 8)

cos(ACB) = -1/8

Since angle ACB is acute, we have:

ACB = arccos(-1/8)

ACB = 100.14 degrees (rounded to two decimal places)

Therefore, angle AOB is twice this angle, or:

angle AOB = 200.28 degrees

Substituting the values of (angle AOB, x) into the equation for the length of DE, we get:

52 = (200.28 / 360) * 2 * pi * x

Simplifying and solving for x, we get:

x = 26 / pi

The circumference of the circle is given by:

circumference = 2 * pi * x

Substituting the value of x, we get:

circumference = 2 * pi * (26 / pi) = 52 cm

Therefore, the circumference of circle F is 52 cm.

The trigonometric ratio used is the tangent ratio, which is calculated as:

tan C = 3/4.

In other to find the tangent of any angle in any given right triangle, the trigonometric ratio we would apply is called the tangent ratio, which is expressed as:

tan ∅ = length of opposite side / length of adjacent side

From the given image, we have the following values gotten:

Reference angle (∅) = C

Length of opposite side = 3

Length of adjacent side = 4

Plug in the values:

tan C = 3/4.

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The probability that the tiles are arranged in the order RBP is 8/495.

Probability that the first tile is red:

There are a total of 11 tiles, out of which 4 are red. Therefore, the probability that the first tile is red is:

P(Red on 1st draw) = 4/11

Probability that the second tile is blue given that the first tile was red:

If the first tile is red, then there are 10 tiles left, out of which 4 are blue. Therefore, the probability that the second tile is blue given that the first tile was red is:

P(Blue on 2nd draw given Red on 1st draw) = 4/10 = 2/5

Probability that the third tile is purple given that the first two tiles were red and blue, respectively:

If the first two tiles were red and blue, then there are 9 tiles left, out of which 3 are purple. Therefore, the probability that the third tile is purple given that the first two tiles were red and blue is:

P(Purple on 3rd draw given Red on 1st draw and Blue on 2nd draw) = 3/9 = 1/3

Probability that the tiles are arranged in the order RBP:

To find the probability that the tiles are arranged in the order RBP, we need to multiply the probabilities of each individual event:

P(RBP) = P(Red on 1st draw) x P(Blue on 2nd draw given Red on 1st draw) x P(Purple on 3rd draw given Red on 1st draw and Blue on 2nd draw)

P(RBP) = (4/11) x (2/5) x (1/3) = 8/495

Therefore, the probability that the tiles are arranged in the order RBP is 8/495.

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To make the indicated trigonometric substitution in the given algebraic expression, x² − 25x, with x = 5 sec(t), substitute and simplify to get 100(sec²(t) - 5sec(t)).

To make the trigonometric substitution, follow these steps:

1. Replace x with 5 sec(t) in the expression: (5 sec(t))² − 25(5 sec(t)).
2. Simplify (5 sec(t))²: 25 sec²(t).
3. Simplify 25(5 sec(t)): 125 sec(t).
4. Combine terms: 25 sec²(t) - 125 sec(t).
5. Factor out a common factor, which is 25 sec(t): 25 sec(t)(sec(t) - 5).

So, the simplified expression after making the trigonometric substitution is 100(sec²(t) - 5sec(t)).

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The value of a · b is 10√3.

To find the value of dot product a · b, we need to use the formula:

a · b = |a| * |b| * cos(θ)

where |a| and |b| are the magnitudes of vectors a and b respectively, and theta is the angle between them.

Given that |a| = 5, |b| = 4, and the angle between them is 30°, we can plug in these values into the formula:

a · b = |a| * |b| * cos(θ)

a · b = 5 * 4 * cos(30°)

To evaluate the cosine of 30°, we can use the fact that it is a special angle and its cosine value is √3/2. Therefore:

a · b = 5 * 4 * √3/2

a · b = 10 * √3

So, the value of a · b is 10√3.

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The MLE of θ is simply the sample mean of the squared observations. To find the maximum likelihood estimate (MLE) of θ, we need to maximize the likelihood function L(θ|x) = ∏[2xi θ e−xi2/θ] = (2θ)

Taking the natural logarithm of the likelihood function, we get:
ln L(θ|x) = n ln(2θ) - ∑xi2/θ + ∑ln(xi)

To find the maximum, we differentiate with respect to θ and set the derivative to zero:
d/dθ [ln L(θ|x)] = n/θ - ∑xi2/θ = 0

Solving for θ, we get:
θ = ∑xi2/n

Therefore, the MLE of θ is simply the sample mean of the squared observations.

In other words, the MLE of θ is the value of θ that maximizes the likelihood of observing the given sample. In this case, it is the value of θ that makes the observed data most likely to have been generated from a Rayleigh distribution with the given probability density function.

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Answer:

Step-by-step explanation:

[tex]p-3q[/tex]

Answer:

p - 3q

Step-by-step explanation:

Hope it helps!!

False.

If two lines overlap (have the same equation), then they are not distinct lines but the same line.

If two lines overlap (have the same equation), then they are not distinct lines but the same line. In this case, there are infinitely many solutions to the system of equations, since any point on the common line satisfies both equations.

For example, consider the system of equations:

x + y = 3
2x + 2y = 6

These equations represent two distinct lines that overlap, since the second equation is simply twice the first equation. The solution to this system is any point on the line x + y = 3, such as (1, 2) or (0, 3), and there are infinitely many such points.

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The standard deviation of the sampling distribution of [tex]\hat{p}[/tex] is 0.0315

The correct answer is an option (c)

We know that the formula for the standard deviation in terms of true probability and sample size:

SD = [tex]\sqrt{\frac{p(1-p)}{n} }[/tex]

where, SD = standard deviation

p = true proportion

and n = total sample

Here, we have a sample of 250 people who work in Washington with proportion of 0.45

This means p = 0.45 and n = 250

Substitute these values in above formula to find the standard deviation.

⇒ SD = [tex]\sqrt{\frac{p(1-p)}{n} }[/tex]

⇒ SD = [tex]\sqrt{\frac{0.45(1-0.45)}{250} }[/tex]

⇒ SD = 0.0315

Therefore, the standard deviation of the sampling distribution = 0.0315

The correct answer is an option (c)

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Find the complete question below.

Answer: 8,000 in³

Step-by-step explanation:

The formula for the volume of a cube (a special type of box where all sides have the same length) is V = s^3, where s is the length of one side.

In this case, the length of one side of the cube is given as 20 inches.

Therefore, the volume of the cube is V = 20^3 cubic inches = 8,000 cubic inches.

Answer:

8,000 in2

Step-by-step explanation:

The total surface area of the given prism is: 400 cm²

To find the surface area of the given prism, we need to find the area of all the surfaces and add them together. Thus:

Area of two Triangles is:

A = 2(¹/₂ * 8 * 15)

A = 120 cm²

Area of slanting rectangles:

A = 17 * 7

A = 119 cm²

Area of perpendicular rectangle is:

A = 15 * 7

A = 105 cm²

Area of base = 7 * 8

A = 56 cm²

TSA = 120 cm² + 119 cm² + 105 cm² + 56 cm²

TSA = 400 cm²

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the credit card holder paid a total of $349.26 in interest.

So the answer is not provided in the options.

To calculate the interest paid, we need to first determine the monthly interest rate, which is the annual percentage rate (APR) divided by 12:

Monthly interest rate = 11.99% / 12 = 0.9992%

Next, we can calculate the balance after each payment is made. For the first 11 months, the payment is $350 each month, so the balance after each payment is:

Month 1: $9,768.26 - $350 = $9,418.26

Month 2: $9,418.26 - $350 = $9,068.26

Month 3: $9,068.26 - $350 = $8,718.26

Month 11: $3,518.26 - $350 = $3,168.26

At the end of the 11th month, the balance is $3,168.26. This balance will accrue interest for one more month before the cardholder pays it off in full. The interest on this balance for one month is:

Interest = Balance x Monthly interest rate

Interest = $3,168.26 x 0.9992%

Interest = $31.66

Therefore, the total interest paid by the cardholder is the sum of the interest paid on the monthly balances for the first 11 months plus the interest paid on the remaining balance in the 12th month:

Total interest = (11 x $31.66) + $31.66 = $349.26

Therefore, the credit card holder paid a total of $349.26 in interest.

So the answer is not provided in the options.

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The missing values in the table (in order from left to right) are:

We know that h(x) is a linear function, then we can write:

h(x) = a*x + b

By looking at the table, we can see the pair (0, 4), this means that:

h(0) = -4

Then:

a*0 + b =- 4

b = -4

So our function is:

h(x) = a*x + -4

To find the value of a, we can use other point. The next one is (2, 10), replacing these values we get:

10 = a*2 + -4

10 + 4 = a*2

14 = a*2

14/2 = a

7= a

The linear function is h(x) = 7x - 4

Now we can find the missing values in the table, these are:

h(1) = 7*1 - 4 = 3

h(3) = 7*3 - 4 = 17

h(5) = 7*5 - 1 = 34

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answer

5g=40

g=40÷5= 8

you have to divide by 5 both sides

Answer:

g = 8

Step-by-step explanation:

5g=40

To solve for g, divide each side by 5.

5g/5 = 40/5

g = 8

Answer:

A) (– 3,0) and (1,0)

Step-by-step explanation:

Plugging the given x-values into the equation gives us;

ƒ(x) = x² + 2x – 3

f(-3) = (-3)² + 2(-3) - 3 = 0

and

f(1) = (1)² +2(1) - 3 = 0

the two parts of [tex]3240[/tex]  , such that one is [tex]28[/tex] percent more than the other, are approximately   [tex]1421.05[/tex] and  [tex]1818.95[/tex] .

Let's assume the two parts are x and y, where x is 28 percent more than y.

Given:

Total value to be divided = 3240

One part = x

The other part = y

x is 28 percent more than y.

We can set up the following equation based on the given information:

[tex]x = y + 0.28y[/tex]  (since x is 28% more than y, we add 0.28y to y to get x)

We also know that the sum of x and y is equal to  [tex]3240[/tex]:

[tex]x + y = 3240[/tex]

Now we can substitute the value of x from the first equation into the second equation:

[tex](y + 0.28y) + y = 3240[/tex]

Simplifying:

[tex]2.28y = 3240[/tex]

Dividing both sides by 2.28:

y = 3240 / 2.28

[tex]y \approx 1421.05[/tex]

Now we can substitute the value of y back into the equation for x:

[tex]x = y + 0.28y[/tex]

[tex]x = 1421.05 + 0.28(1421.05)[/tex]

[tex]x \approx 1818.95[/tex]

Therefore, the two parts of 3240, such that one is 28 percent more than the other, are approximately 1421.05 and 1818.95.

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The answer of the given question based on the word problem is the two parts of 3240 are approximately 1421.05 and 1820.95.

Percent is term that means that "per hundred" or "out of 100". It is a way of expressing a number as a fraction of 100. Percentages are often denoted using the % symbol. Percentages are used in a wide range of applications, such as calculating sales taxes, discounts, interest rates, and grades. They are also commonly used in statistics and scientific research to express the likelihood of an event occurring or the proportion of a sample that has a certain characteristic.

Let's assume that one part of 3240 is x.

According to the problem, the other part is 28% more than x, which means it is 1.28x.

We know that the sum of these two parts should be equal to 3240:

x + 1.28x = 3240

Simplifying and solving for x:

2.28x = 3240

x = 3240/2.28

x ≈ 1421.05

So one part of 3240 is approximately 1421.05.

The other part is 28% more than x, which is:

1.28x ≈ 1820.95

Therefore, the two parts of 3240 are approximately 1421.05 and 1820.95.

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The equation f(x) = 2496/x calculates the speed in miles per hour as a function of the flight time in hours.

The formula for calculating the speed in miles is expressed as:

Speed = Distance/Time

Given that Distance = 2496miles

Time in hours. = x

Substitute the given parameters into the formula to have;

Speed = 2496/x

f(x) = 2496/x

Hence the function that gives the speed in miles per hour f(x) as a function of the flight time in hours x is f(x) = 2496/x

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To complete the basis step of the proof for p(n), we need to show that P(1) is true.

This means substituting n=1 into the equation 1³ + 2³ + ... + n³ = { n(n+1)²) and verifying that it holds true. In this case, we get 1³ = 1(1+1)², which simplifies to 1 = 1. Therefore, P(1) is true.

The statement p(n) represents an equation that we need to prove for all positive integers n.

To start a proof by induction, we need to establish the basis step by showing that the equation holds true for the first value of n, which in this case is n=1. By checking that P(1) is true, we can establish a strong foundation for the rest of the proof.

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