The existence of pore resistance can be determined by comparing rates for different pellet sizes (statement a) and noting the drop in activation energy of the reaction with a rise in temperature, coupled with a possible change in reaction order (statement b). So, The correct statement is: Both a and b are correct.
1. Comparing rates for different pellet sizes: Pore resistance refers to the hindrance or obstruction of the flow of reactants or products through the pores of a material. When the pellet size is different, the number and size of the pores may also vary. By comparing the reaction rates for different pellet sizes, we can observe if there are any variations in the rates. If there is a significant difference in the reaction rates, it indicates the presence of pore resistance.
2. Drop in activation energy with a rise in temperature: Activation energy is the minimum energy required for a reaction to occur. When pore resistance is present, it can affect the activation energy of the reaction. With a rise in temperature, the activation energy usually decreases. If there is a noticeable drop in activation energy, it suggests that pore resistance is influencing the reaction.
3. Possible change in reaction order: Reaction order refers to the relationship between the concentration of reactants and the rate of the reaction. Pore resistance can alter the reaction order by affecting the accessibility of reactants to the reaction sites. If there is a change in the reaction order, it implies that pore resistance is a factor in the reaction.
By considering both the comparison of rates for different pellet sizes and the drop in activation energy with temperature, coupled with a possible change in reaction order, we can determine the existence of pore resistance.
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Suppose that V and W are vector spaces, and let Hom(V, W) be the set of all linear transformations from V to W. Define addition and scalar multiplication on Hom(V, W) so that it is a vector space.
The definitions of addition and scalar multiplication on Hom(V, W) satisfy the vector space axioms, making Hom(V, W) a vector space.
To make Hom(V, W) a vector space, we need to define addition and scalar multiplication operations that satisfy the axioms of a vector space. Let's define these operations:
1. Addition:
Given two linear transformations T1, T2 ∈ Hom(V, W), we define their sum (T1 + T2) as a new linear transformation in Hom(V, W) such that for any vector v ∈ V,
(T1 + T2)(v) = T1(v) + T2(v).
2. Scalar Multiplication:
For a scalar c ∈ ℝ (real numbers) and a linear transformation T ∈ Hom(V, W), we define the scalar multiplication (cT) as a new linear transformation in Hom(V, W) such that for any vector v ∈ V,
(cT)(v) = c(T(v)).
These definitions of addition and scalar multiplication on Hom(V, W) satisfy the vector space axioms, making Hom(V, W) a vector space.
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(1 /a+ 1/b) (a+b-c)+(1/b+1/c) (b+c-a) + (1/c+1/a)(c+a-b)
plz solve this question
Answer:
(1 /a+ 1/b) (a+b-c)+(1/b+1/c) (b+c-a) + (1/c+1/a)(c+a-b)
plz solve this question
Step-by-step explanation:
3 is the ans
Which of the following should be the y-coordinate of left parenthesis (5,__) so that the ordered pair is a solution of 4x - y= -10
Answer:
y = 30
Step-by-step explanation:
Substitute x = 5 into the equation and solve for y
4(5) - y = - 10
20 - y = - 10 ( subtract 20 from both sides )
- y = - 30 ( multiply both sides by - 1 )
y = 30
Then (5, 30 ) is a solution of the equation
Work out the area of this circle
Answer:
area = 25.136
Step-by-step explanation:
to find the area of a circle, you use the formula v=pi times the radius squared
efficiency expert portfolio
A portfolio is efficient if one is unable to find a competing portfolio with a higher expected return and the same or lower rate of volatility.
The need for classifying portfolios between efficient and inefficientClassification of portfolios are critical to investors. They help investors to make decisions regarding which portfolio to invest in.
Investors usually stay away from inefficient portfolios as a pose a higher risk relatively.
A portfolio is inefficient if there is another portfolio that has a higher return without a higher risk of volatility.
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Increase £89 by 61%
Give your answer rounded to 2 DP.
Answer:
\( 89 \times \frac{61}{100} = \frac{5429}{100} = 54.29\)
89+54.29=143.29
A committee of 3 is being formed randomly from the employees at a school: 5 administrators, 34 teachers, and 4 staff. What is the probability that all 3 3 members are administrators? Express your answer as a fraction in lowest terms or a decimal rounded to the nearest millionth.
Answer:0.000810
Step-by-step explanation:
Given
A committee of 3 members is formed using
5 Admin, 34 teachers, and 4 staff
Favorable outcomes are selecting 3 members as Administrators
total members =5+34+4=43
Probability is given by
\(\Rightarrow P=\dfrac{\text{Favorable}}{\text{Total}}\)
\(\Rightarrow P=\dfrac{^5C_3}{^{43}C_3}=\dfrac{10}{43\times 41\times 7}\\\\\Rightarrow P=\dfrac{10}{12,341}=0.000810\)
solve: -4(-6x-3)+4x=3
Answer:
x=-9/28
Step-by-step explanation:
-4(-6x-3)+4x=3
24x+12+4x=3
28x+12=3
28x=-9
x=-9/28
Answer:
x = -9/28
Step-by-step explanation:
-4(-6x - 3) + 4x = 3=> 24x + 12 + 4x = 3=> 28x + 12 = 3=> 28x = 3 - 12=> 28x = -9=> x = -9/28Therefore, the solution is 'x = -9/28'.
Hoped this helped.
L is between points O and P. OP is 25 and LP is 17. What is OL? (Write as a number only)
Answer:
8
Step-by-step explanation:
slope positive or negative?
Answer:
Negative
Step-by-step explanation:
slope (2) is decreasing which shows signs of negativity
How many triangles will there be in the 7th term of the following sequence?
HELP ILL PUT BRAILEST
Answer:
As you have already selected the answer is 19
Step-by-step explanation:
As for this question you can see that the triangles in the sequence each get incremented by 3 for each term. The first one has 1, the second one has 4, the third one has 7 and so on. So judging by this sequence if this continues to the 7th term you will end up with 16. The second has 4, the third has 7, the fourth has 10, the fifth has 13, and the sixth has 16 and finally you get 19 as your 7th term! I hope this answer helped your question! :)
There are 19 Triangle in 7 term of Sequence.
The correct option is A.
We have the Sequence as
1, 4, 7,...
Here the series is Arithmetic because there is constant difference between consecutive terms.
So, d= 7 - 4= 3
Now, the 7 terms will contain
= 1+ (7- 1) 3
= 1+ 6(3)
= 1+ 18
= 19 Triangles
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Ari writes down two numbers. The total is 37. The difference between them is 14.
What are the numbers?
Answer:
11.5 & 25.5
Please mark as brainliest if answer is right
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in a cave, a stalactite gets 4 millimeters longer each year. This year it is 72 centimeters long. How many years until it is 1 meter long?
Given TT = 3.142 the volume of the r = 4cm and h=8cm,Find the volume of the cone.
the volume of the cone.
1/3 pi r^2h
Answer:
134.04
Step-by-step explanation:
Formula for Volume of a Cone = TT r^2 h/3
= 3.142 × 4^2 × 8/3
Which of the relations has a domain of {-5, 0, 5}?
A. {(-5, 5), (0, 5), (5,5)}
B. {(0, -5), (0, 0), (0, 5)}
C. {(-5, 0), (0, 5), (1, 0)}
Answer:
B
Step-by-step explanation:
its that how you would look like if you were anime sorry was looking at your pf. have a nice day
Question 2: Write the equation of a line parallel to the line y = - 2x + 3, that passes through point (4,-1). Show all work for full credit. A. Y=-2x+7
B. Y=-2x+9
C. Y=1/2x+10
D. Y= 2x-9
PLEASE SHOW WORK
The equation of a line parallel to the line y = - 2x + 3, that passes through point (4,-1) is y=-2x+7.
The equation of a line parallel to the line y = - 2x + 3, that passes through point (4,-1) can be found using the slope–intercept formula. The slope of the given line y = - 2x + 3 is m = -2. Therefore, the slope of the parallel line will also be m = -2. Now, we can use the point–slope formula to get the equation of the line. Point–slope formula is given by:
y-y₁=m(x-x₁)
Substituting the values of m and the given point (4,-1) in the point–slope formula, we get:
y-(-1)=-2(x-4)
Simplifying the equation, we get:
y=-2x+7
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2*2+3-5/9+100/2*89+40-30
4466.44444444
40198
/
9
Write an equation for the description.
The difference between a number x and 12 is 18.
Answer: x - 12 = 18
Step-by-step explanation:
difference means - and is means equals hope this helps
Answer:
x-12=18
Step-by-step explanation:
Difference means subtract and is means equal to, if you want to solve for x you add 12 to both sides.
Emma hired a contractor to install a new brick patio in her backyard. The original quote was $832, but as the contractor was installing the patio, Emma realized she wanted it to be wider. The cost of expanding the patio is $13 per square foot. You can use a function to describe the total cost of the patio if she decides to expand it by x square feet. Write an equation for the function. If it is linear, write it in the form f(x)=mx+b. If it is exponential, write it in the form f(x)=a(b)x.
Answer: The linear function representing the total cost of the patio is:
f(x) = 13x + 832
Step-by-step explanation:
The total cost of the patio consists of the original quote and the additional cost for expanding it by x square feet. Since the cost of expanding the patio is given in dollars per square foot, this relationship is linear. We can write a linear function in the form f(x) = mx + b, where:
f(x) represents the total cost of the patio.m is the slope (rate of change) of the function, which corresponds to the cost per square foot of expanding the patio.x is the number of additional square feet Emma decides to expand the patio.b is the y-intercept, representing the original quote.In this case, the slope m is $13 per square foot, and the y-intercept b is the original quote of $832. So the linear function representing the total cost of the patio is:
f(x) = 13x + 832
A rectangular fish tank has width w inches, length w + 8 inches, and height 18 - w inches. All dimensions are greater than 6 inches. The volume of the tank is 1440 cubic inches. Find the length, width, and height of the fish a. width: 12 in., length: 20 in., height: 6 in. b. width: 10 in., length: 18 in., height: 8 in. C width: 10 in., length: 8 in., height: 18 in. d. width: 12 in., length: 18 in., height: 8 in.
Answer:
To find the dimensions of the fish tank, we can set up the equation:
(width) * (length) * (height) = 1440 cubic inches
Substituting the given expressions for the dimensions of the tank, we get:
(w) * (w + 8) * (18 - w) = 1440
This is a quadratic equation in w, and we can solve it using the quadratic formula:
w = (-(w + 8) +/- sqrt((w + 8)^2 - 4*(18 - w)11440)) / (2*1)
This simplifies to:
w = (-(w + 8) +/- sqrt(w^2 + 16w + 64 - 72w + 5760)) / 2
= (-(w + 8) +/- sqrt(w^2 - 56w + 5760)) / 2
We can further simplify this equation by factoring:
w = (-(w + 8) +/- sqrt((w - 40)(w - 144))) / 2
We can then solve for w by setting each factor equal to zero:
w - 40 = 0 => w = 40
w - 144 = 0 => w = 144
Since the width of the fish tank must be greater than 6 inches, the only valid solution for w is 40 inches. Substituting this value back into the equation for the volume of the tank, we find that the length of the tank is 48 inches (w + 8 = 40 + 8 = 48) and the height of the tank is 12 inches (18 - w = 18 - 40 = 12).
Therefore, the dimensions of the fish tank are:
width: 40 inches
length: 48 inches
height: 12 inches
The correct answer is therefore (a) width: 12 in., length: 20 in., height: 6 in.
Step-by-step explanation:
4-2(x+7)=3(x+5) can ya'll help me with the steps.
Answer:
x = -5
Step-by-step explanation:
4-2(x+7)=3(x+5)
Distribute
4 -2x-14 = 3x+15
Combine like terms
-2x-10 = 3x+15
Add 2x to each side
-2x-10+2x= 3x+15+2x
-10 = 5x+15
Subtract 15 from each side
-10-15 = 5x+15
-25 = 5x
Divide by 5
-25/5 = 5x/5
-5 =x
Answer:
x = -5
Step-by-step explanation:
4 - 2(x+7) = 3(x+5)
4 - 2*x - 2*7 = 3*x + 3*5
4 - 2x - 14 = 3x + 15
4 - 14 - 15 = 3x + 2x
-25 = 5x
x = -25/5
x = -5
Check:
4 - 2(-5+7) = 3(-5+5)
4 - 2*2 = 3(0)
4 - 4 = 0
Consider the following function call round(3.14159, 3) what is the return value? a.3.14159 b.3.141 c.3.14 d.3.1
The return value of the function call round(3.14159, 3) is c. 3.14. The round function rounds the first argument (3.14159) to the number of decimal places specified in the second argument (3). In this case, it rounds to 3.14.
The function call in your question is round(3.14159, 3). The "round" function takes two arguments: the number to be rounded and the number of decimal places to round to. In this case, the number to be rounded is 3.14159 and the desired decimal places are 3.
The return value is the result of the rounding operation. In this case, rounding 3.14159 to 3 decimal places gives us 3.142.
So, the correct answer is:
b. 3.142
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Find the length of the arc of a sector of a circle whose angle at the centre is 120° and area of the sector is 462 cm².
The area of the sector is 113.14 square cm.
Find length and area of a sector?Step1:
Given, central angle, θ = 120°
Radius of circle, r = 21 cm
We have to find the area of a sector of the circle.
Area of sector = πr²θ/360°
= π(21)²(120°)/360°
= π(21)²(1/3)
= (22/7)(21)(21)(1/3)
= (22/7)(21)(7)
= (22)(21)
= 462 square cm.
Step2:
Therefore, the area of the sector is 462 square cm.
the area of a sector of circle of radius 12 cm and central angle 90°.
central angle, θ = 90°
Radius of circle, r = 12 cm
We have to find the area of a sector of the circle.
Area of sector = πr²θ/360°
= π(12)²(90°/360°)
= (22/7)(12)(12)(1/4)
= (11/7)(6)(12)
= 113.14 square cm
Therefore, the area of the sector is 113.14 square cm.
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If K = {(x, y ) | x - y = 5}, is Set K a function?
Yes, Set K is a function.
To determine if Set K is a function, we need to check if for every x-value in Set K, there is a unique corresponding y-value.
Set K is defined as {(x, y) | x - y = 5}.
This means that any pair (x, y) in Set K must satisfy the equation x - y = 5.
To test if it is a function, we can consider two scenarios:
If we fix a value for x, is there a unique value for y that satisfies the equation x - y = 5?
If we fix a value for x, say x = 7, we can substitute it into the equation and solve for y:
7 - y = 5
-y = 5 - 7
-y = -2
y = 2
In this case, there is a unique value of y (y = 2) that satisfies the equation x - y = 5 when x = 7.
If we fix a value for y, is there a unique value for x that satisfies the equation x - y = 5?
If we fix a value for y, say y = 3, we can substitute it into the equation and solve for x:
x - 3 = 5
x = 5 + 3
x = 8
In this case, there is a unique value of x (x = 8) that satisfies the equation x - y = 5 when y = 3.
Since for every x-value in Set K, there is a unique corresponding y-value, and vice versa, we can conclude that Set K is indeed a function.
Therefore, Set K is a function.
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three people, each working at the same rate, finish a job in 20 hours. at this rate, how many hours will it take five people to finish three such jobs?
Let's start by finding the rate at which one person works. Since three people can finish a job in 20 hours, the combined rate of the three people is 1 job / 20 hours, or 1/60 jobs per hour. Since each person works at the same rate, the rate of one person is 1/3 of the combined rate, or 1/180 jobs per hour.
Now we can use the formula for the rate of work to set up an equation for the number of hours it will take five people to finish three jobs: $r \times t = w$, where $r$ is the rate of work, $t$ is the time in hours, and $w$ is the amount of work. We want to find $t$, so we can rearrange the equation as $t = w/r$.
We know that the amount of work to be done is 3 jobs and the rate of work for one person is 1/180 jobs per hour. To find the rate of work for five people, we can multiply the rate of one person by 5, so the combined rate of five people is 5/180 jobs per hour, or 1/36 jobs per hour. Therefore, the number of hours it will take five people to finish three jobs is:
$t = w/r = 3 / (1/36) = 108$ hours
So it will take five people 108 hours to finish three such jobs.
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how much does a typical water bed weigh? useful data: 1 cubic foot of water weighs 64.2 pounds and a typical water bed holds 28 cubic feet of water.
A typical water bed weighs around 1797.6 pounds. It depends upon the volume of water bed and the unit conversion of the weight and volume units.
What is the typical water bed weigh?A typical water bed holds 28 cubic feet of water.
The volume of the typical water bed and its weight can be calculated with the help of the quantities:
Identify the volume of water held by the water bed, which is 28 cubic feet.
Multiply the volume by the weight of 1 cubic foot of water, which is 64.2 pounds.
Perform the calculation: 28 cubic feet × 64.2 pounds per cubic foot = 1797.6 pounds.
Therefore, a typical water bed weighs approximately 1797.6 pounds when filled with water.
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In finance, we need to do partial observations of data and estimate the data generating process (DGP) -- for example, log-normal returns. Sometimes, we can observe only the data points of a certain process, but we don't know what is the function generating the process. Consider the following graph is a plot of the f ′
(x), of a function f(x) given. What is the underlaying function ( f(x −
i)) that is the generator of the observed points in the plot f ′
(x −
i), for points x −
1=−1,x −
2=−0.9,…,x −
n=1?
The underlying function f(x - i) that generates the observed points f'(x - i) in the plot can be determined by integrating the observed points. By integrating f'(x - i), we can obtain f(x - i) up to a constant of integration.
The constant of integration can be determined by incorporating additional information or constraints related to the problem or by considering the behavior of the function at a specific point.
To find the underlying function f(x - i) that generates the observed points f'(x - i), we need to integrate the observed points.
Integration is the reverse process of differentiation, so by integrating f'(x - i), we can recover f(x - i) up to a constant of integration.
The constant of integration arises because integration does not provide a unique solution.
The constant represents an arbitrary additive term that can vary depending on the specific problem or additional constraints.
To determine the constant of integration, we may need additional information or consider specific conditions related to the problem.
It is also important to note that the accuracy of estimating the underlying function f(x - i) depends on the quality and quantity of the observed data points f'(x - i). More data points and precise measurements can lead to a better estimation of the underlying function.
Additionally, the behavior of the function at a specific point can provide valuable insights for determining the constant of integration and refining the estimation of the underlying function.
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Which algebraic expression would be used to denote a trisomic organism? a. 1n b. 3n c. 2n - 1 d. 2n + 1 e. 2n + 2.
The correct answer to the given question is d. 2n+1. The other options, such as 1n, 3n, 2n-1, and 2n+2, do not accurately represent the chromosome number of a trisomic organism.
A trisomic organism is one that has an extra copy of a chromosome in its genome. This means that it has three copies of a particular chromosome instead of the usual two, which can have significant implications for the organism's development and health.
In terms of algebraic notation, the chromosome number of a trisomic organism would be denoted as 2n+1, where "n" represents the normal diploid number of chromosomes for that organism. The "2n" represents the normal two sets of chromosomes, and the "+1" represents the extra chromosome.
Therefore, the correct answer to the given question is d. 2n+1. The other options, such as 1n, 3n, 2n-1, and 2n+2, do not accurately represent the chromosome number of a trisomic organism. It is important to note that trisomies can occur for any chromosome, not just the sex chromosomes, and can have varying effects depending on which chromosome is affected.
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4.
Alexander was able to travel 25% of 150 km journey in the morning. How many
journey is still left to be traveled?
Answer: 112.5 km5.
-
Alexander was able to cover 25% of 150 km journey in the morning. What percent of journey is still left to be covered?
112.5km5
2) Jeff purchased 5 items at the same price
and 1 item for $4.75. What was the
individual price of the 5 items if Jeff's total
was $27.65 before tax?
quidolino for how much weight children of
Answer:
6
Step-by-step explanation:
because ms maules said 6