Answer:I don’t know I need help
Step-by-step explanation:
Find the period and the amplitude of the periodic function. I'm awful with graphs :(
A period is the difference in x over which a sine function returns to its equivalent state and the amplitude is A/5.
Amplitude:
The amplitude of a periodic variable is a measure of its change over a period of time, such as a temporal or spatial period. The amplitude of an aperiodic signal is its magnitude compared to a reference value. There are various definitions (see below) of amplitude, which is any function of the magnitude of the difference between the extreme values of a variable. In the previous text, the phase of a periodic function is called the amplitude.
X = A sin (ω[ t - K]) + b
A is the amplitude (or peak amplitude),
x is the oscillating variable,
ω is angular frequency,
t is time,
K and b are arbitrary constants representing time and displacement respectively.
According to the Question:
An equation does not have an amplitude. This "equation" represents the formula of a vibration, and was better written as:
X= A/5* sin(1000.t + 120)
These oscillations have a certain amplitude. X values can vary from minimum to maximum. Normally, the stop position of the oscillation is X=0. In this case, we can see that the maximum occurs when the sine is +1 and the minimum occurs when the sine is -1.
For theses cases X= A/5 respectively -A/5.
Therefore,
The amplitude is A/5.
For formulas of this type, the term in front of the sinus (or cosine) is equal to the amplitude.
Complete question:
Can I find the amplitude of this equation? A/5 *
Two friends shop for fresh fruit. Elena buys a watermelon for $6.35 and 4 pounds of cherries. Taniy buys a pineapple for $4.55 and 3 pounds of cherries. Use the variable p to represent the price, in dollars, per pound of cherries. Write and simplify an expression to represent how much more Elena spent. PLEASE HELP
Answer:
$6.35 + 4 x p
$4.55 + 3 x p
Step-by-step explanation:
use the intermediate value theorem to show that the polynomial has a real zero between the given integers? f(x)= x^3-x-4; between 1 and 7.
We have demonstrated using the Intermediate Value Theorem that the polynomial function has a real zero between 1 and 7.
To apply the Intermediate Value Theorem to the polynomial function f(x) = x^3 - x - 4 and show that it has a real zero between the integers 1 and 7, we need to verify that f(1) and f(7) have opposite signs.
Let's evaluate f(1) and f(7) to determine their signs:
f(1) = (1)^3 - (1) - 4 = 1 - 1 - 4 = -4
f(7) = (7)^3 - (7) - 4 = 343 - 7 - 4 = 332
From the calculations, we can see that f(1) = -4 and f(7) = 332.
Since f(1) is negative (-4) and f(7) is positive (332), they have opposite signs.
According to the Intermediate Value Theorem, if a continuous function changes sign between two points, then it must have at least one real zero between those points.
Since f(1) = -4 (negative) and f(7) = 332 (positive), the polynomial function f(x) = x^3 - x - 4 must have a real zero between the integers 1 and 7.
Therefore, we have demonstrated using the Intermediate Value Theorem that the polynomial function has a real zero between 1 and 7.
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There are 8 counter seats available at a burger shop Alex and Brook goes
to eat there, but ended up fighting right before meal. In how many ways
can they sit at the counter so that there is at least one seat in between them?
Answer:
3 seats
Step-by-step explanation:
3 seat between them
z →z . f(x)=x 3. select the correct description of the function f.
The correct description of the function f: Z → Z, given by f(x) = x + 3, is "Neither one-to-one nor onto."
To determine if the function f is one-to-one, we need to check if each input value (x) has a unique output value (f(x)). In this case, for any integer x, f(x) = x + 3. Since the value of f(x) depends solely on the input value x, different input values can yield the same output value. For example, f(1) = 4 and f(2) = 5, indicating that the function is not one-to-one.
To determine if the function f is onto, we need to check if every possible output value has a corresponding input value. In this case, since f(x) = x + 3, any integer y can be obtained as an output value by choosing x = y - 3. Therefore, every possible integer output has a corresponding input value, making the function onto.
As a result, the function f: Z → Z, defined by f(x) = x + 3, is neither one-to-one nor onto.
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f:Z→Z.f(x)=x+3f:Z→Z.f(x)=x+3
Select the correct description of the function f.
One-to-one and onto
One-to-one but not onto
Onto but not one-to-one
Use the table to find the products of the polynomial
pls help i’m having so much trouble with this and i don’t understand
(x^2 + x - 2)(4x^2 - 8x)
Answer:
Step-by-step explanation:
Hello,
The table is as below
\(\begin{array}{c|c|c|c} &2&1&-2\\4&\boxed{4}&\boxed{4}&\boxed{-8}\\-8&\boxed{-8}&\boxed{-8}&\boxed{16}\\\ 0&\boxed{0}&\boxed{0}&\boxed{0} \end{array}\)
It gives
\(4x^4+(4-8)x^3-(8+8)x^2+16x=4x^4-4x^3-16x^2+16x\)
Hope this helps.
Do not hesitate if you need further explanation.
Thank you
how many strings of length 5 are there over the alphabet {0, 1, 2}?
The length of the string is 5 and the alphabet is {0, 1, 2}.Therefore, the number of strings of length 5 that can be formed over the given alphabet is:$$3^5 = 243$$ Therefore, there are 243 strings of length 5 over the alphabet {0, 1, 2}.
To calculate the number of strings of length 5 over the alphabet {0, 1, 2}, we need to determine the number of choices for each position in the string. Since each position can be filled with one of three possible characters (0, 1, or 2), we have three choices for each position.
Therefore, the total number of strings of length 5 can be calculated as:
Number of strings = Number of choices for position 1 × Number of choices for position 2 × Number of choices for position 3 × Number of choices for position 4 × Number of choices for position 5
Number of strings = 3 × 3 × 3 × 3 × 3 = 3^5 = 243
So, there are 243 strings of length 5 over the alphabet {0, 1, 2}.
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The information given in question is that the length of the string is 5.
Alphabet {0,1,2}
Therefore, there are 243 strings of length 5 over the alphabet {0, 1, 2}.
To find the number of strings of length 5 over the alphabet {0, 1, 2}, we need to consider the number of choices we have for each position in the string.
There are three choices (0, 1, or 2) for each position, and since we have five positions, the total number of strings of length 5 is given by:
\($$3^5 = \boxed{243}$$\)
Therefore, there are 243 strings of length 5 over the alphabet {0, 1, 2}.
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I am trying to find the value of x, y, and z.
Answer:
\(\begin{gathered} x=\sqrt[]{35}=5.62 \\ y=\sqrt[]{60}=7.75 \\ z=\sqrt[]{84}=9.17 \end{gathered}\)Explanation: We need to find x y z, three missing sides:
From the given triangle, we can form three equations, using the Pythagorean theorem as:
\(\begin{gathered} (1)\rightarrow5^2+x^2=y^2 \\ (2)\rightarrow7^2+x^2=z^2 \\ (3)\rightarrow z^2+y^2=(7+5)^2=12^2 \\ \end{gathered}\)Solution by substitution:
Substituting (1) in (3) gives:
\(\begin{gathered} z^2+5^2+x^2=12^2 \\ z^2+25+x^2=144 \\ z^2+x^2=144-25=119 \\ z^2+x^2=119\rightarrow(4) \end{gathered}\)We have reached equation (4), solving for z in equation (4), and then substituting it into equation (2) gives:
\(\begin{gathered} 7^2+x^2=119-x^2\rightarrow2x^2=119-49=70 \\ \therefore\rightarrow \\ x=\sqrt[]{\frac{70}{2}}=\sqrt[]{35}=5.916 \end{gathered}\)Plugging this x into equation (4) gives:
\(\begin{gathered} z^2+(\sqrt[]{35})^2=119\rightarrow z^2=119-35=84 \\ \therefore\rightarrow \\ z=\sqrt[]{84}=9.165 \\ \\ \end{gathered}\)Now that we have x and z, we plug x it into equation (1) and we get:
\(\begin{gathered} 5^2+(\sqrt[]{35})^2=y^2 \\ \therefore\rightarrow \\ y^2=25+35=60 \\ y=\sqrt[]{60}=7.75 \end{gathered}\)x y z respectively are:
\(\begin{gathered} x=\sqrt[]{35}=5.62 \\ y=\sqrt[]{60}=7.75 \\ z=\sqrt[]{84}=9.17 \end{gathered}\)12x−2y=28. Fully simplify your answer.
Examine the diagram, and answer the question.
The points A(2,7)
and B(−4,−3)
are located in the coordinate plane as shown.
Points A and B are shown in the coordinate plane at the locations indicated.
© 2016 StrongMind. Created using GeoGebra.
What is the approximate distance between the two points?
15.6
7.3
6.7
11.7
9514 1404 393
Answer:
11.7
Step-by-step explanation:
GeoGebra can not only draw the picture, it can answer the question. The approximate distance between the points is about 11.7 units.
__
The distance formula is used for this:
d = √((x1 -x1)² +(y2 -y1)²)
d = √((-4-2)² +(-3-7)²) = √(36 +100)
d = √136 ≈ 11.7
_____
Once you find that the distance is about √136, you know it is more than 11 (11² = 121) and less than 12 (12² = 144). The only answer choice that makes any sense is 11.7.
1. If you increase a number by ten, the result is less than sixteen
2. A number w times two is less than it equal to negative eight
Answer:
1. 1, 2, 3, 4, or 5
2. as long as it is -4, -5, -6, -7, and so on
Step-by-step explanation:
If a = 24 ft, b = 31 ft, and c = 37 ft, what is the area of the backyard? help me
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Answer: 27528 ft^3
Explanation:
24 x 31 x 37 = 27528
I hope this helped!
<!> Brainliest is appreciated! <!>
- Zack Slocum
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All above -the line adjustments that do not have corresponding input lines on Schedule 1 ( Form 1040 are indicated as
A. Write -in adjustment
B. Write -in deductions
C. Miscellaneous adjustments
D. Miscellaneous deductions
The correct option is A. Write-in adjustments All above-the-line adjustments that do not have corresponding input lines on Schedule 1 (Form 1040) are indicated as write-in adjustments.
All above-the-line adjustments that do not have corresponding input lines on Schedule 1 (Form 1040) are referred to as write-in adjustments. Line 36 of Schedule 1 is where all write-in adjustments are reported. You have to provide a brief explanation of the adjustment and the corresponding amount for each write-in adjustment.If the IRS has developed an input line for a particular write-in adjustment, taxpayers must use that input line to report the adjustment.
When writing in adjustments, taxpayers must ensure that the amount they enter is calculated and that they have a reasonable explanation for the adjustment. Taxpayers may be required to provide documentation to support the adjustment if the IRS requests it.
Miscellaneous adjustments and miscellaneous deductions are not used to describe all above-the-line adjustments that do not have corresponding input lines on Schedule 1 (Form 1040).
Therefore, options C and D are incorrect. The correct option is A. Write-in adjustments.
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Chris and Evan are selling bags of popcorn to raise money for a club at school. Chris started with 10 bags and he sells 4 bags each day.
Evan began with 8 bags and sells 2 bags each day. How many days will it take before they both have the same number of bags remaining?
- A 2 days
B. 4 days
C 1 day
D 6 days
Answer:
1 day
Step-by-step explanation:
You can write an equation, or you can just see what happens each day.
Chris:
Start 10
1 day 6
2 days 2
Evan:
Start 8
1 day 6
Answer: C 1 day
n art collector, who owns 10 original paintings, is preparing a will in how many waysmay the collector leave these paintings to three heirs?
Number of ways an art collector who owns 10 original paintings leave these paintings to three heirs are 120.
As given in the question,
Total number of paintings owned by an art collector = 10
Number of heirs whom an art collector willing to leave these paintings = 3
Number of ways an art collector who owns 10 original paintings leave these paintings to three heirs is equal to
= ¹⁰C₃
= ( 10 )! / ( 10 - 3 )! 3!
= ( 10 )! / 7! 3!
= ( 10 × 9 × 8 × 7! ) / 7! 3!
= ( 10 × 9 × 8 ) / ( 3 × 2 × 1 )
= 120 ways
Therefore, number of ways an art collector who owns 10 original paintings leave these paintings to three heirs are 120.
The complete question is :
An art collector who owns 10 original paintings is preparing a will. In how many ways may the collector leave these paintings to three heirs?
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Martin had 24
5
pounds of grapes left. Which expression shows the pounds of grapes Martin has if he doubles his current amount?
(2) + (2) (Four-fifths)
(2) (2) + (four-fifths)
(2) (2) + (2) (four-fifths)
(2) + (2) + (four-fifths)
Answer:
its C
Step-by-step explanation:
Answer:
16/3 pounds
Step-by-step explanation:
We are give that each friend took 2/3 pound of grapes from the bowl. Therefore, to know the total amount taken by the four friends, we will simply do cross multiplication as follows:
1 friend .................> 2/3 pounds
4 friends ...............> ?? pounds
Amount taken by the 4 friends = [4*(2/3)] / 1 = 8/3 pounds
The bowl originally had 8 pounds and 8/3 pounds were taken, therefore:
remaining amount = 8 - 8/3 = 16/3 pounds hope this helps!
Becca made 2 trays of rolls and bisouits. Each tray had 12 folls and 6 biscuits. How many total rols and bisouits did Beca make?
Becca made a total of 24 rolls and 12 biscuits.
Multiplication is one of the four elementary mathematical operations of arithmetic, with the other ones being addition, subtraction, and division. The result of a multiplication operation is called a product.
Becca made 2 trays of rolls and biscuits, with 12 rolls and 6 biscuits in each tray. To find the total number of rolls and biscuits, we need to multiply the number of rolls and biscuits per tray by the number of trays, and then add them together:
Total rolls = 2 trays × 12 rolls per tray = 24 rolls
Total biscuits = 2 trays × 6 biscuits per tray = 12 biscuits
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2. Which point is located on the line represented by the equation y + 4 =-5(x-3)? (1 poir
0(-4,-5)
0(-5,-4)
O(3.-4)
0(-3, 4)
Answer:
0(-3, 4)
Step-by-step explanation:
I got it right
Point (3, - 4) is located on the line represented by the equation
y + 4 =- 5(x - 3).
What is an equation?An equation is written in the form of variables and constants separated by the operation of multiplication and division,
An equation states that terms in different forms on both sides of the equality sign are equal.
Multiplication and division do not separate the terms of an equation.
Given, Equation is y + 4 = -5(x - 3).
We'll confirm the points by the given options putting the value of x and checking the corresponding y value.
y + 4 = -5(x - 3).
y + 4 = - 5x + 15.
y = - 5x + 11.
By going through the options we conclude that at x = 3, y = - 4.
So, The point is (3, - 4).
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Evaluate the following integral using trigonometric substitution. dx/sq(x^2-81), x > 9
Evaluating the integral using trigonometric substitution, we get:
dx/sq(x^2-81), x > 9 = ln|sec(θ) + tan(θ)| + C.
To evaluate the integral ∫dx/√(x^2-81) using trigonometric substitution, we can make the substitution x = 9sec(θ), where θ is the angle associated with the substitution.
Let's proceed with the trigonometric substitution:
1. Substitute x = 9sec(θ) into the integral, and dx = 9sec(θ)tan(θ)dθ.
∫(9sec(θ)tan(θ)dθ) / √(81sec^2(θ) - 81)
= ∫(9sec(θ)tan(θ)dθ) / √(81(sec^2(θ) - 1))
= ∫(9sec(θ)tan(θ)dθ) / √(81tan^2(θ))
= ∫(9sec(θ)tan(θ)dθ) / (9tan(θ))
= ∫sec(θ)dθ
2. Now, we need to find the new limits of integration when x = 9 and x → ∞.
When x = 9, we have θ = 0 (because sec(0) = 1).
As x → ∞, θ → π/2 (because sec(π/2) = ∞).
Therefore, the new limits of integration are from θ = 0 to θ = π/2.
3. We can now evaluate the integral with the new substitution and limits:
∫sec(θ)dθ = ln|sec(θ) + tan(θ)| + C
4. Finally, substitute back the original variable x:
∫dx/√(x^2-81) = ln|sec(θ) + tan(θ)| + C.
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Use trigonometric substitution to change the integral into a form that can be integrated. Substitute x = 9sec(θ) into the integral, evaluate, then convert back to x. The answer is ln|x/9|.
Explanation:The mathematical concept demonstrated in this example is trigonometric substitution.
To evaluate the integral dx/sqrt(x^2-81) where x > 9, we start by letting x = 9sec(θ). We choose this substitution because when x = 9sec(θ), x^2 - 81 = 81(sec^2(θ) - 1) = 81tan^2(θ).
Find dx: x = 9sec(θ), so dx = 9sec(θ)tan(θ)dθ.Substitute x and dx into the integral: ∫dx/sqrt(x^2-81) = ∫(9sec(θ)tan(θ)dθ)/sqrt(81tan^2(θ)) = ∫tan(θ)dθ.Evaluate the integral: ∫tan(θ)dθ = ln|sec(θ)|.Since our final answer should be in terms of x, not θ, we need to convert back. We know x = 9sec(θ), so θ = sec^-1(x/9). Therefore, our final answer is ln|sec(sec^-1(x/9))| = ln|x/9|.
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1.
A and B are two overlapping subsets of a universal set U. Draw Venn-diagrams
and shade the regions that contain the element of the following set operations.
a) A UB
b) AB
c) A-B
d) B-A
e) A
f) B
Answer:
Probably c
Step-by-step explanation:
Tbh
A recipe instructs the cook to use 4 cups of water for each 3 cups of powder. If you used 10 cups of water, how much powder should be added?
Answer:
it would b 2 in half cups of powder
If deviations are positive, then .......1. observations are above the mean 2.there is no need to perform Linear Regression 3.observations are below the mean 4.SSE will be negative
If deviations are positive, it means that the observations are above the mean. This is option 1.
Positive deviations indicate that the individual observations are greater than the mean of the dataset. Deviation is a measure of how far each observation deviates from the mean. When the deviations are positive, it implies that the observations are higher than the average or central value represented by the mean.
Linear regression is a statistical technique used to model the relationship between variables. It is not directly related to the sign of deviations. Therefore, option 2 is incorrect.
Option 3, which states that positive deviations indicate that observations are below the mean, is incorrect. Positive deviations indicate observations above the mean, not below.
Option 4, stating that SSE (Sum of Squared Errors) will be negative, is not necessarily true. SSE is a measure of the discrepancy between the observed values and the values predicted by a regression model. It is calculated by summing the squared differences between the observed and predicted values. The SSE can be positive or zero, but it cannot be negative.
In summary, when deviations are positive, it indicates that the observations are above the mean, not below. The statement that SSE will be negative is incorrect.
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Solve for the variable in the following proportion
m/1/3 = 10/1 2/3
50
2
5
3/5
please help?
Answer:
the answer is 5
Step-by-step explanation:
Ariana solved the equation as shown. Explain her error and correct the solution.
9x² - 144= 0
9x² = 144
x² = 16
√ x² = √ 16
x=+8
if you could explain how to do at least one thatd help alot
Step-by-step explanation:
If you know how to do an equation like: 5x - 3 = 21
Or something formatted like that, its the exact same thing, only there's a different sign. So I believe the first one would be:
x + 3 < 5
- 3 -3
x = 2
But I just learnt how to do this so let me know if it works :)
Also! If the number after the sign's (such as < or >) sign changes (such as -3 becomes 3 or 3 becomes -3. or even when -3 becomes 1) then you swap the sign ( < becomes > and visa versa) But this only works if it changes due to a multiplication or division. Example:
-3x > 3
(divide by -3)
x < -1
I swapped the sign. Make sense?? Let me know if it doesnt and I'll clarify
State whether each of the following statement is true or false. Justify your answer.
(i) {2,3,4,5} and {3,6} are disjoint sets.
(ii) {a,e,i,o,u} and {a,b,c,d} are disjoint sets
(iii) {2,6,10,14} and {3,7,11,15} are disjoint sets
(iv) {2,6,10} and {3,7,11} are disjoint sets
The answer is (i) The statement is False, (ii) The statement is false, (iii) The statement is true, (iv) The statement is true.
(i) Let A = {2, 3, 4, 5} and B = {3, 6}
Now A∩B
= {2, 3, 4, 5} ∩ {3, 6} = {3}
Hence, A and B are not disjoint. So the statement is false.
(ii) Let A = {a, e, i, o, u} and B = {a, b, c, d}
Now A∩B
= {a, e, i, o, u} ∩ {a, b, c, d}= {a}
Hence, A and B are not disjoint. So the statement is false.
(iii) Let A = {2, 6, 10, 14} and B = {3, 7, 11, 15}
Now, A∩B
= {2, 6, 10, 14} ∩ {3, 7, 11, 15} = Φ
Hence, A and B are disjoint sets. So the statement is true.
(iv) Let A = {2, 6, 10} and B = {3, 7, 11}
Now A∩B
= {2, 6, 10} ∩ {3, 7, 11} = Φ
Hence, A and B are disjoint sets. So the statement is true.
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Given that g(x) = 4x + 6, find the value of x that makes g(x) = 14.(5 points)
a
-50
O
b
-5
Ос
2
Od
8
PLEASE HELP ASAP PLEASE PLEASE
Answer:
Step-by-step explanation:
if you see a person that sends you a sketchy link dont click it is an ip grabber.
consider the active vibration absorber shown in figure 3. assume that all values except the mass of the active vibration absorber are known and are equal to unity.
An active vibration absorber is a device used to reduce or eliminate vibrations in a mechanical system. It consists of a mass-spring-damper system, similar to the primary system experiencing vibrations.
The key difference is that the active vibration absorber is equipped with sensors, actuators, and a control system to actively counteract the vibrations.
The control system measures the vibrations of the primary system and generates a signal that is used to drive the actuator in the absorber. The actuator applies forces to the absorber mass, which counteracts the vibrations in the primary system.
The control algorithm adjusts the amplitude and phase of the actuator forces based on the measurements and desired response to achieve effective vibration cancellation. By actively generating forces that are out of phase and of equal magnitude to the primary system's vibrations, the active vibration absorber can significantly reduce the overall vibration levels.
In conclusion, an active vibration absorber is a device that utilizes sensors, actuators, and control algorithms to actively counteract vibrations in a mechanical system. It works by generating forces that are out of phase and of equal magnitude to the vibrations in the primary system, resulting in reduced vibration levels. The specific details and calculations would depend on the configuration and parameters of the active vibration absorber being referred to in Figure 3.
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The pizza shop offers a 15 percent discount for veterans and senior citizens. An employee uses the calculations shown to figure out how to charge a senior citizen for a $12 pizza. What is the employee’s error?(100% − Discount %)(Original Amount) = Discounted Amount(100% − 85%)($12) = Discounted Amount(15%)($12) = Discounted Amount(0.15)($12) = $1.80The discounted price of pizza is $1.80.
A meeting takes place between a diplomat and fourteen government officials. However, four of the officials are actually spies. If the diplomat gives secret information to one of the attendees at random, what is the probability that secret information was only given to the real officials (no spies )?
The probability that secret information was only given to the real officials (no spies) can be calculated by dividing the number of favorable outcomes by the total number of possible outcomes (all attendees).
In this scenario, there are 14 attendees in total, out of which 4 are spies. Therefore, the number of real officials is 14 - 4 = 10. The diplomat can choose any one of the 10 real officials to give the secret information to. So, the probability is given by the ratio of the number of favorable outcomes (10) to the total number of possible outcomes (14): Probability = 10 / 14 = 5 / 7 ≈ 0.714. Therefore, the probability that secret information was only given to the real officials is approximately 0.714 or 71.4%.
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