Need help with logic puzzle ASAP

Answer: -7/10

Step-by-step explanation:

if the number is x then x-10=8x

move terms to one side so 7x = -10

divide by 7 to get x by itself so x= -7/10

The two angles have the same measure because the skew lines are parallel. The measure is 144°

Here we need to remember that when two angles are adjacent in an intersection, then the measures must add up to 180°.

Now notice that the two angles that are skewed are parallel (because the notation on them).

Then all the angles formed in the two intersections have the same measure.

And remember that vertical angles (angles that only meet at the vertex) have the same measure.

Notice that f and g would be vertical angles, taht is why the measure is the same, and the exact measure is;

f  + 36 = 180

f = 180 - 36

f = 144

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Fido's share of the dog food as a percentage, is 36.4%.

Percentage is a way of expressing a number as a fraction of 100. It is represented by the symbol "%". It is a useful way of expressing proportions, ratios, and rates.

First, we need to find the fraction of dog food that Engle gets.

Let x be the fraction of dog food that Engle gets. Then, the fraction of dog food that Fido gets is 1 - x (since Engle and Fido share the rest of the food).

We know that the ratio of Engle's food to Fido's food is 7:4, which means that:

x / (1 - x) = 7/4

Solving for x:

4x = 7(1 - x)

11x = 7

x = 7/11

So Engle gets 7/11 of the dog food, and Fido gets 1 - 7/11 = 4/11 of the dog food.

Now we need to find Fido's share as a percentage:

Fido's share = (4/11) * 100% = 36.4%

Therefore, Fido's share of the dog food is 36.4%.

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The opposite sides are parallel to each other because the opposite sides have the same slope value.

When two sides or lines are parallel to each other, the value of their slope would be the same.

Slope of WZ = rise/run = -1/3

Slope of XY = rise/run = -1/3

Slope of XW = rise/run = 3/2

Slope of XW = rise/run = 3/2

Therefore, since the slopes of the opposite sides, then they are parallel to each other.

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(b) 2.04, The value of a that corresponds to P(Z a) = 0.9793 can be determined by using the standard normal table or calculator once more. Around 2.04 is this figure.

A probability distribution that is continuous and symmetrical around the mean is called the normal distribution. Other names for it include the bell curve or the Gaussian distribution.

Like the average height of a population or the weight of things, many natural phenomena have a normal distribution. It is possible to anticipate how likely it is that a random variable will fall within a specific range of values thanks to the normal distribution, which is crucial in statistics.

Known to have a mean of 0 and a standard deviation of 1, the normal distribution has these values. As a result, we can state: P(0 Z a) = P(Z a) - P(Z 0)

P(Z 0) = 0.5 can be discovered using a basic normal table or calculator. In light of this, 0.4793 = P(Z a) - 0.5

The result is 0.9793 = P(Z a) after adding 0.5 to both sides.

The value of a that corresponds to P(Z a) = 0.9793 can be determined by using the standard normal table or calculator once more. Around 2.04 is this figure.

Thus, (b) 2.04 is the correct response.

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The appropriate range for the p-value is 0.01 < p-value ≤ 0.05. The appropriate range for the p-value is 0.001 < p-value ≤ 0.01.

A P-value of 0.01 implies that, if the null hypothesis is true, any difference in the observed results (or an even greater "more extreme" difference) would occur 1 in 100 (or 1%) of the times the study was repeated. The P-value just provides this information.

The chi-square statistic is the test statistic used to determine if two categorical variables are independent. The equation is:

χ² = Σ[(O - E)²/ E]

Using the data from the table, we get:

χ² = [(111 - 185.3)² / 185.3] + [(402 - 327.7)² / 327.7] + [(74 - 99.7)²/ 99.7] + [(441 - 515.3)² / 515.3] = 16.65

We discover that 6.63 is the essential value. We reject the null hypothesis since our test-statistic of 16.65 is higher than the crucial value.

For the additional hypotheses:

(a) H0: Pr{pain|B} ≤ Pr{pain|A} Ha: Pr{pain|B} > Pr{pain|A}

The appropriate range for the p-value is 0.01 < p-value ≤ 0.05.

(b) H0: Pr{pain|B} ≥ Pr{pain|A} Ha: Pr{pain|B} < Pr{pain|A}

The appropriate range for the p-value is 0.001 < p-value ≤ 0.01.

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The expected payoff from this game is $1.25 when you roll a standard 6-sided die two times and get paid the LOWER of the two rolls.

There are 6 × 6 = 36 equally likely outcomes when rolling two dice, where each outcome is determined by the values shown on each die. Since the lower of the two rolls is paid only if the rolls are different, there are 6 outcomes where the two rolls are the same (i.e., a pair of 1s, a pair of 2s, and so on), and 30 outcomes where the two rolls are different.

To find the expected payoff from this game, we need to consider the possible payouts and their corresponding probabilities. Since the lower of the two rolls is paid, the possible payouts range from $1 to $6.

For example, if the two rolls are a 1 and a 4, then the lower roll is 1 and the payout is $1. If the two rolls are a 5 and a 6, then the lower roll is 5 and the payout is $5.

For each possible payout, we need to calculate the probability of it occurring. For a payout of $1, there are 5 outcomes where the two rolls are different and the lower roll is 1, so the probability is 5/36.

For a payout of $2, there are 4 outcomes where the two rolls are different and the lower roll is 2, so the probability is 4/36. Continuing in this way, we can calculate the probabilities for each possible payout as shown in the table below:

Payout Probability

$1 5/36

$2 4/36

$3 3/36

$4 2/36

$5 1/36

$6 0

To find the expected payoff, we need to multiply each payout by its corresponding probability and then add up the results:

E(X) = $1 × 5/36 + $2 × 4/36 + $3 × 3/36 + $4 × 2/36 + $5 × 1/36 + $0 × 6/36

= $5/36 + $8/36 + $9/36 + $8/36 + $5/36 + $0

= $1.25

Therefore, the expected payoff from this game is $1.25.

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a. Markov chain is, the probability of transitioning from Xn to Xn+1 only depends on Xn and Un, and not on any earlier values of X.

b. Transition matrix:

[1/8 3/8 1/4 1/4]

[0 1/4 1/2 1/4]

[0 1/8 5/8 1/4]

[0 0 0 1 ]

(a) The beginning of the (n+1)th hour, denoted by Xn+1, depends on the number of arrivals and the number of jobs that were completed during the nth hour. Specifically, we have:

If Xn = 0, then Xn+1 = Un, since the server remains idle and the number of arrivals becomes the number of unprocessed jobs in the queue.

If Xn = 1, then Xn+1 = Un+1, since the server completes the only job in the queue (if any) and then processes the incoming jobs.

If Xn > 1, then Xn+1 = Xn + Un - 1, since the server completes the first job in the queue and the number of unprocessed jobs decreases by 1, and then the remaining arrivals are added to the queue.

(b) From each state Xn to each state Xn+1. Since the number of arrivals Un can take 4 possible values, we have a 4x4 matrix. For example, the probability of transitioning from Xn = 2 to Xn+1 = 1 is:

P(Xn+1 = 1 | Xn = 2)

= P(Xn+1 = 1, Un = 0 | Xn = 2) + P(Xn+1 = 1, Un = 1 | Xn = 2) + P(Xn+1 = 1,

Un = 2 | Xn = 2) + P(Xn+1 = 1, Un = 3 | Xn = 2)

= P(Xn = 2)P(Un = 0) + P(Xn = 2)P(Un = 1) + P(Xn = 2)P(Un = 2)P(Xn+1 = 1 | Xn = 2, Un = 2) + P(Xn = 2)P(Un = 3)P(Xn+1 = 1 | Xn = 2, Un = 3)

= 0 + 0 + (1/2)(1/2)(1) + (1/8)(1/3)(1)

= 1/4

P = [1/8 3/8 1/4 1/4]

[0 1/4 1/2 1/4]

[0 1/8 5/8 1/4]

[0 0 0 1 ]

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a. Markov chain is, the probability of transitioning from Xn to Xn+1 only depends on Xn and Un, and not on any earlier values of X.

b. Transition matrix:

[1/8 3/8 1/4 1/4]

[0 1/4 1/2 1/4]

[0 1/8 5/8 1/4]

[0 0 0 1 ]

(a) The beginning of the (n+1)th hour, denoted by Xn+1, depends on the number of arrivals and the number of jobs that were completed during the nth hour. Specifically, we have:

If Xn = 0, then Xn+1 = Un, since the server remains idle and the number of arrivals becomes the number of unprocessed jobs in the queue.

If Xn = 1, then Xn+1 = Un+1, since the server completes the only job in the queue (if any) and then processes the incoming jobs.

If Xn > 1, then Xn+1 = Xn + Un - 1, since the server completes the first job in the queue and the number of unprocessed jobs decreases by 1, and then the remaining arrivals are added to the queue.

(b) From each state Xn to each state Xn+1. Since the number of arrivals Un can take 4 possible values, we have a 4x4 matrix. For example, the probability of transitioning from Xn = 2 to Xn+1 = 1 is:

P(Xn+1 = 1 | Xn = 2)

= P(Xn+1 = 1, Un = 0 | Xn = 2) + P(Xn+1 = 1, Un = 1 | Xn = 2) + P(Xn+1 = 1,

Un = 2 | Xn = 2) + P(Xn+1 = 1, Un = 3 | Xn = 2)

= P(Xn = 2)P(Un = 0) + P(Xn = 2)P(Un = 1) + P(Xn = 2)P(Un = 2)P(Xn+1 = 1 | Xn = 2, Un = 2) + P(Xn = 2)P(Un = 3)P(Xn+1 = 1 | Xn = 2, Un = 3)

= 0 + 0 + (1/2)(1/2)(1) + (1/8)(1/3)(1)

= 1/4

P = [1/8 3/8 1/4 1/4]

[0 1/4 1/2 1/4]

[0 1/8 5/8 1/4]

[0 0 0 1 ]

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The number of students in each bus can be found by solving the equation from the given facts and there are 54 students in each bus.

Given that,

Total number of students = 331

Six buses were filled and 7 students traveled in cars.

We have to find the number of students in each bus.

Let x be the number of students in each bus.

Total number of students = (students in 6 buses) + 7

Number of students in 6 buses = 6x

We have the equation,

6x + 7 = 331

6x = 324

x = 54

Hence there are 54 students in each bus.

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The desired formula for the area of the region bounded by the curve, the line, and the perpendiculars to the line from P and Q is

Area of region = ∫p^q 2π[f(x) - mx - b]√[1 + m²] dx

In this project, we are asked to discover formulas for finding the volume of a solid of revolution and the area of a surface of revolution when the axis of rotation is a slanted line. We need to show that the area of the region bounded by the curve y = f(x), the line y = mx + b, and the perpendiculars to the line from P and Q is given by a particular formula.

To find the area of the region bounded by the curve y = f(x), the line y = mx + b, and the perpendiculars to the line from P and Q, we can approximate the area using rectangles perpendicular to the line. The figure given in the problem can be used to express Δu in terms of Δx.

Let us consider a small segment of the curve y = f(x) between two points x and x + Δx. The length of this segment is approximately given by √(Δx² + Δy²), where Δy is the change in y between the two points.

The perpendicular distance between the line y = mx + b and this segment is given by |mx + b - f(x)|. Therefore, the area of the rectangle formed by this segment and the line y = mx + b is approximately given by [√(Δx² + Δy²)][|mx + b - f(x)|][Δx].

Summing up the areas of all such rectangles over the length of the curve gives us an approximation for the area of the region bounded by the curve, the line, and the perpendiculars to the line from P and Q. As we take finer and finer rectangles, this approximation gets closer and closer to the true area.

Taking the limit as the width of the rectangles approaches zero gives us the exact area of the region. Simplifying the expression and substituting the values of P, Q, and the line y = mx + b, we get the formula:

Area of region = ∫p^q 2π[f(x) - mx - b]√[1 + m²] dx

This is the desired formula for the area of the region bounded by the curve, the line, and the perpendiculars to the line from P and Q.

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At an employment level of 50 workers, the firm's marginal product of labor is 240 cars per additional worker it hires.

The marginal product of labor (MPL) represents the additional output produced by adding one more unit of labor (i.e., one more worker). It can be calculated by taking the first derivative of the production function with respect to labor (n), holding all other variables constant:

MPL = dP/dn = -10 + 5n - 0.002n^3

To find the MPL at an employment level of 50 workers, we plug in n = 50 into the equation:

MPL(50) = -10 + 5(50) - 0.002(50^3) = 240 cars/worker

Therefore, at an employment level of 50 workers, the firm's marginal product of labor is 240 cars per additional worker it hires.

Interpretation: This means that if the firm hires one more worker when it already has 50 workers, the daily production will increase by 240 cars on average. However, as the number of workers increases, the MPL decreases, indicating that each additional worker contributes less and less to the firm's daily production.

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The set can be written as: {6a + 2b | a, b ∈ Z} which means that the elements of the set are all possible values of 6a + 2b where a and b are integers. Written with braces, the set would look like this: { ..., -14, -8, -2, 4, 10, 16, ... }.

This set is defined as the set of all possible values obtained by multiplying any integer 'a' by 6 and any integer 'b' by 2 and then adding the results. Therefore, the set contains all the integers that can be expressed as 6a + 2b, where 'a' and 'b' are integers.

To list the elements of this set between braces, we need to find all possible combinations of values of 'a' and 'b' that belong to the set of integers 'Z' and substitute them into the expression 6a + 2b. This gives us the set of all possible values that can be obtained by multiplying an integer by 6 and another integer by 2 and then adding the results.

The resulting set includes all even integers since 6a is even for all integer values of a, and the sum of two even integers is always even. Therefore, we can write the set as follows:

{..., -10, -8, -6, -4, -2, 0, 2, 4, 6, 8, 10, ...}

Understanding how to define and list the elements of sets is essential in various fields, including mathematics, statistics, and computer science. It allows us to organize data, study relationships between variables, and make predictions or decisions based on the properties of the set.

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Answer:

169.63 ft square is correct

area of circle is pi x radius squared

Step-by-step explanation:

so,

pi x 7.35 squared

pi x 54.0225

169.63 ft is correct answer

The total number of matches played in the tournament will be the sum of all of these matches:
475 + 220 + 92 + 40 + 18 + 8 + 4 + 2 + 1 + 1 = 861

To determine the total number of matches to be played in the tournament, we need to first determine the number of rounds that will be played. Since each round eliminates half of the remaining players, we need to find the power of 2 that is closest to, but less than, the total number of players (951).

2^9 = 512 (too small)
2^10 = 1024 (too big)
2^8 = 256 (too small)
2^7 = 128 (too small)
2^6 = 64 (too small)
2^5 = 32 (too small)

Therefore, we can conclude that there will be 2^9 = 512 players in the first round, leaving 439 players. One player will be sitting out, since the number of players is odd. In the second round, there will be 2^8 = 256 matches played, with the 439 remaining players and the one player who sat out in the first round. This will leave 184 players for the third round, with one player sitting out again.

Continuing this pattern, we can determine that there will be 10 rounds in total, with the following number of matches played in each round:

Round 1: 475
Round 2: 220
Round 3: 92
Round 4: 40
Round 5: 18
Round 6: 8
Round 7: 4
Round 8: 2
Round 9: 1
Round 10: 1

The total number of matches played in the tournament will be the sum of all of these matches:

475 + 220 + 92 + 40 + 18 + 8 + 4 + 2 + 1 + 1 = 861

Therefore, there will be a total of 861 matches played in all the rounds of the tournament.

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The possible values of r are:

If a = b = 0, then r is any nonzero integer.

If a or b is nonzero, then r is either 0 or a positive integer multiple of [tex]|cos\theta|[/tex] or [tex]|sin\theta|[/tex].

Let's call the complex number "z" for simplicity:

[tex]z = re^{i\theta} = r(\cos\theta + i\sin\theta) = r\cos\theta + ir\sin\theta[/tex]

where r is the magnitude of the complex number and [tex]\theta[/tex] is its argument (or phase angle). We can also write the complex number in rectangular form as:

z = x + iy

where x and y are the real and imaginary parts of z, respectively.

Since a and b are integers, we know that x and y must also be integers. Thus, we have:

x = [tex]r\cos\theta[/tex] and y = [tex]r\sin\theta[/tex]

We also know that r must be a non-negative real number.

To find all possible values of r that satisfy the given conditions, we can consider the following cases:

Case 1: If both a and b are zero, then z = [tex]re^{i\theta}[/tex] = r. Since a and b are integers, we have r = x = y, so r must be an integer.

Case 2: If either a or b is nonzero, then we can assume without loss of generality that b is nonzero (since if a is nonzero, we can rotate the complex plane by 90 degrees to make b nonzero instead). In this case, we have:

[tex]tan\theta = \frac{y}{x} = \frac{b}{a}[/tex]

Since a and b are integers, \theta is either a rational multiple of [tex]\pi[/tex] or a rational multiple of [tex]\pi/2.[/tex]

If [tex]\theta[/tex] is a rational multiple of [tex]\pi[/tex], then we have:

[tex]e^{i\theta} = \cos\theta + i\sin\theta = (-1)^{p/q}[/tex]

where p and q are integers with q > 0 and gcd(p,q) = 1. In this case, we have:

[tex]r\cos\theta = (-1)^{p/q}r[/tex] and [tex]r\sin\theta = 0[/tex]

So either r = 0 or r is a positive integer multiple of [tex]|cos\theta|[/tex]. If r = 0, then z = 0, which is not allowed since a and b are nonzero. Otherwise, we have:

r = [tex]n|\cos\theta|[/tex]

where n is a positive integer.

If [tex]\theta[/tex] is a rational multiple of [tex]\pi/2[/tex], then we have:

[tex]e^{i\theta} = \cos\theta + i\sin\theta = i^{p/q}[/tex]

where p and q are integers with q > 0 and gcd(p,q) = 1. In this case, we have:

[tex]r\cos\theta = 0[/tex] and [tex]r\sin\theta = i^{p/q}r[/tex]

So either r = 0 or r is a positive integer multiple of [tex]|sin\theta|[/tex]. If r = 0, then z = 0, which is not allowed since a and b are nonzero. Otherwise, we have:

r = [tex]m|\sin\theta|[/tex]

where m is a positive integer.

Therefore, the possible values of r are:

If a = b = 0, then r is any nonzero integer. And if a or b is nonzero, then r is either 0 or a positive integer multiple of [tex]|cos\theta|[/tex] or [tex]|sin\theta|[/tex], where [tex]\theta[/tex] is a rational multiple of [tex]\pi[/tex] or [tex]\pi/2[/tex].

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The first derivative of G(r) is (3/2).
The second derivative of G(r) is (-3/4)/√(r³).

To find the first derivative of G(r), we use the power rule of differentiation:

G'(r) = (1/2)r(-1/2) + 5(1/2)r(-1/2)

Simplifying, we get:

G'(r) = (1/2)(1 + 5)√(r)/√(r)

G'(r) = (3/2)√(r)/√(r)

G'(r) = (3/2)

To find the second derivative, we differentiate G'(r) using the power rule again:

G''(r) = (-1/4)r(-3/2) + 5(-1/4)r(-3/2)

Simplifying, we get:

G''(r) = (-3/4)r(-3/2)

G''(r) = (-3/4)/√(r^3)

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At first specify a codomain for each of the functions and discuss the conditions for them to be onto.

1. No students are using the same mobile phone number, not onto.
Codomain: Set of all possible mobile phone numbers.
This function would be onto if each mobile phone number in the codomain is assigned to at least one student.

2. Every student gets a unique identification number.
Codomain: Set of all possible unique identification numbers.
This function is onto since every student has a unique identification number, and all the identification numbers in the codomain are assigned to students.

3. Every student got different final grades than other classmates.
Codomain: Set of all possible final grades.
This function would be onto if each final grade in the codomain is assigned to at least one student. However, in a class with a limited number of students, it's likely that not all possible final grades are assigned, making this function not onto.

4. Every student in the class is coming from different home towns.
Codomain: Set of all possible home towns.
This function would be onto if every home town in the codomain has at least one student coming from it. Given that the number of students is limited, it's unlikely that every possible home town is represented, making this function not onto.

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Rob received $3.75

First, find out how much the 2 sandwiches cost:

2 sandwiches at $2.50 each

$2.50 × 2 = $5.00

1 bottle of water is $1.25

You add the items bought, the sandwiches and the bottle of water, to find out how much was spent

$5.00 + $1.25 = $6.25

Now, to find out how much change Rob received, you subtract the amount purchased to the amount of the bill he paid with.

$10.00 - $6.25 = $3.75

The limit of lim x→/4 5 − 5 tan(x) sin(x) − cos(x) is -5.

To find the limit of lim x→/4 5 − 5 tan(x) sin(x) − cos(x), we can use algebraic manipulation and trigonometric identities.

First, we notice that as x approaches 4, tan(x) approaches infinity and sin(x) and cos(x) approach 0. So, we have an indeterminate form of infinity times 0.

To simplify this expression, we can use the trigonometric identity sin(x)cos(x) = 1/2 sin(2x).

So, we have: lim x→/4 5 − 5 tan(x) (sin(x) − cos(x)sin(x)cos(x)) = lim x→/4 5 − 5 tan(x) (sin(x) − 1/2 sin(2x)) = lim x→/4 5 − 5 tan(x) sin(x) + 5/2 tan(x) sin(2x) = 5 − 5 (1/0) + 5/2 (1/0)

Since we have an indeterminate form of infinity minus infinity, we can't directly evaluate the limit. However, we can use L'Hopital's rule to take the derivative of the numerator and denominator separately and evaluate the limit again.

Taking the derivative of the numerator, we get: -5 sec^2(x) sin(x) + 5 cos(x) Taking the derivative of the denominator, we get: 1

So, applying L'Hopital's rule, we have:

lim x→/4 (-5 sec^2(x) sin(x) + 5 cos(x)) / (cos(x))

= lim x→/4 (-5 sin(x)/cos^2(x) + 5 cos(x)/cos(x))

= lim x→/4 (-5 tan(x)/cos(x) + 5) = -5

Therefore, the limit of lim x→/4 5 − 5 tan(x) sin(x) − cos(x) is -5.

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Dissonances are ugly and harsh, so composers never like to use these harmonies is a false statement.

While dissonances can create a sense of tension or unease in music, they are also an important and expressive tool for composers.

Dissonances can be used to create contrast, highlight resolution, and create a sense of emotional intensity or urgency.

Composers have used dissonances in their works for centuries, and they continue to do so in a wide range of musical genres and styles.

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True. A confidence interval is a range of values within which we are confident that the true population parameter lies.

Although it doesn't give us the exact value of the parameter, we can be sure (with a certain level of confidence, usually expressed as a percentage) that the true population parameter is included in the confidence interval.

A confidence interval is a range of values that is calculated from a sample of data, and it is used to estimate an unknown population parameter.

Although a confidence interval doesn't tell us the exact value of the true population parameter, it does provide valuable information about the precision and accuracy of our estimate. Specifically, a confidence interval tells us the range of values within which the true population parameter is likely to fall, based on the sample data and the level of confidence chosen.

In other words, we can be reasonably confident that the true population mean falls within the range of values provided by the confidence interval.

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Answer:

1.38m

Step-by-step explanation:

cone volume= 1/3 πr²h

so 20 = 1/3 * πr² * 10

so  πr² = 6

so r² = 6/3.14 =1.91

so r = √1.91

r =1.38

This is not an example of horizontal integration.

Vertical integration in mathematics typically refers to the process of finding the antiderivative (integral) of a function with respect to the independent variable. It is a fundamental concept in calculus.

Horizontal integration is a business strategy where a company acquires or merges with other companies operating in the same industry or market to increase market share, reduce competition, and gain economies of scale.

The scenario described is an example of vertical integration. Vertical integration occurs when a company acquires or controls other companies that are involved in different stages of the same production process, such as acquiring suppliers or distributors.

In this case, the owner of the apple orchards is acquiring the machines to make apple juice from the apples, which is a different stage of the production process. Additionally, by buying trucks to transport the apple juice to retailers, the owner is controlling the distribution stage of the process as well.

This is not an example of horizontal integration, which would involve the owner acquiring or merging with other apple orchards to increase market share or reduce competition.

There is no indication in the scenario that the owner is engaging in collusion or violating antitrust practices, as these involve illegal or unethical actions to limit competition or manipulate markets.

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Answer:

x = 1/2

Step-by-step explanation:

Pythagorean Theorem: a^2 + b^2 = c^2, where a and b are the side lengths and c is the hypotenuse.

Substituting in the values:

x^2 + (√2)^2 = (x + 1)^2

Then, we isolate x:

x^2 + 2 = (x + 1)(x + 1) = x^2 + 2x + 1

(Subtract x^2 from both sides)

2 = 2x + 1

(Subtract 1 from both sides, I also flipped the equation)

2x = 1

(Divide both sides by 2)

x = 1/2

To double-check, substitute x with 1/2:

(1/2)^2 + (√2)^2 = (1/2 + 1)^2

Simplify:

1/4 + 2 = 9/4

=> 1/4 + 8/4 = 9/4 (true)

The function g(t) is calculated to has one relative minimum and two absolute extrema over the domain [-1, 1].

To find the relative and absolute extrema of the function g(t) = [tex]e^{t}[/tex] - t over the domain [-1, 1], we need to follow these steps:

Find the critical points of g(t) by setting its derivative equal to zero and solving for t.

Test the sign of the second derivative of g(t) at each critical point to determine whether it corresponds to a relative maximum, relative minimum, or an inflection point.

Evaluate g(t) at the endpoints of the domain [-1, 1] to check for absolute extrema.

Step 1: Find the critical points of g(t)

g'(t) = .[tex]e^{t}[/tex] - 1

Setting g'(t) equal to zero, we get:

[tex]e^{t}[/tex] - 1 = 0

[tex]e^{t}[/tex] = 1

Taking the natural logarithm of both sides, we get:

t = ln(1) = 0

So, the only critical point of g(t) in the domain [-1, 1] is t = 0.

Step 2: Test the sign of the second derivative of g(t)

g''(t) = e^t

At t = 0, we have g''(0) = e⁰ = 1.

Since g''(0) is positive, the critical point t = 0 corresponds to a relative minimum.

Step 3: Evaluate g(t) at the endpoints of the domain [-1, 1]

g(-1) = e⁻¹ - (-1) = e⁻¹ + 1 ≈ 1.37

g(1) = e⁻¹ - 1 = e - 1 ≈ 1.72

Since g(t) is a continuous function over the closed interval [-1, 1], it must attain its absolute extrema at the endpoints of the interval. Therefore, the absolute minimum of g(t) over [-1, 1] occurs at t = -1, where g(-1) ≈ 1.37, and the absolute maximum occurs at t = 1, where g(1) ≈ 1.72.

To summarize:

Relative minimum: g(0) ≈ -1

Absolute minimum: g(-1) ≈ 1.37

Absolute maximum: g(1) ≈ 1.72

Therefore, the function g(t) has one relative minimum and two absolute extrema over the domain [-1, 1].

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Step-by-step explanation:

Easy to just 'think' of the answer , but here is the mathematical solution:

x = first number

x + 1 = second number

4 *x  = 3 (x+1)     <=======given

4x = 3x + 3

x = 3     then the other number is  3 + 1 = 4

The two vector functions that parametrize the intersection of the surfaces are:

[tex]r1(t) = (t, t, (\sqrt{(1+4t^2)+t^2-7)/2} )\\r2(t) = (t, t, -\sqrt{(t^2+64)} )[/tex]

To parametrize the intersection of the surfaces y^2−z^2=z−7 and y^2−z^2=64 using t=y as the parameter, we can first solve for y^2−z^2 in terms of y.

From the equation y^2−z^2=z−7, we get y^2−z^2−z+7=0.

Using the quadratic formula, we can solve for z:

[tex]z = (±\sqrt{(1+4y^2)+y^2-7)/2} )[/tex]

Similarly, from the equation y^2−z^2=64, we get z^2−y^2=-64. Solving for z in terms of y, we get:

[tex]z = ±\sqrt{(y^2+64)}[/tex]

Now we can use t=y as the parameter, and write:

x = t
y = t
[tex]z =±\sqrt{(1+4t^2)+t^2-7)/2}[/tex],

if y^2−z^2=z−7
[tex]z = ±\sqrt{t^2+64)}[/tex]

if y^2−z^2=64

So the two vector functions that parametrize the intersection of the surfaces are:
[tex]r1(t) = (t, t, (\sqrt{(1+4t^2)+t^2-7)/2} )\\\\r2(t) = (t, t, -\sqrt{(t^2+64)} )[/tex]

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The length of an arc is 7.065 feet.

What is the length of the arc?

The distance between two places along a segment of a curve is known as the arc length. Curve rectification is the process of measuring the length of an irregular arc section by simulating it with connected line segments. There are a finite number of segments in the rectification of a rectifiable curve.

Here, we have

Given: The radius of a circle is 9 centimeters.

we have to find the length of a 45° arc.

The formula for arc length is:

Arc length = 2πr×(x/360°)

Where x is the central angle measure and r is the radius of the circle.

Arc length = 2π(9)×(45°/360°)

Arc length = 2.25π

Arc length = 7.065 feet.

Hence, the length of an arc is 7.065 feet.

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The surface area of the pyramid is 980  in²

The surface area of the pyramid is given by A = 4A' + A" where

Now, A' is a triangle. So, A' = 1/2bh where

Now using Pythagoras' theorem h = √(H² + (b/2)²) where H = height of pyramid and b = base of triangular face.

So, A' = 1/2bh

= 1/2b√(H² + (b/2)²)

Also, since A" is a square is A" = b²

So, A = 4A' + A"

= 4[1/2b√(H² + (b/2)²)] + b²

= 2b√(H² + (b/2)²) + b²

Given that

Substituting the values of the variables into the equation, we have that

A = 2b√(H² + (b/2)²) + b²

= 2(20 in)√((10.5in)² + (20 in/2)²) + (20in)²

= 40 in√((110.25 in² + 100 in²) + 400in²

= 40 in√((210.25 in²) + 400in²

= 40 in(14.5  in) + 400in²

= 580  in² + 400in²

= 980  in²

The surface area is 980  in²

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Step-by-step explanation:

To solve the equation 10x/2 = 15, we can simplify the left-hand side first by dividing 10x by 2, which gives us 5x. So the equation becomes:

5x = 15

To isolate x, we can divide both sides by 5:

x = 3

Therefore, the value that makes the equation true is x = 3.

Answer:X=

Step-by-step explanation: