The Lower Control Limit (LCL) of a 3.6 control chart is 44.1.
To construct an appropriate statistical process control chart for the average time taken in the execution of a set of computerized protocols, data was collected for 30 samples each of size 40, and the mean of all sample means was found to be 50. The standard deviation of the sample-means was known to be 4.5 seconds.
A control chart is a statistical tool used to differentiate between common-cause variation and assignable-cause variation in a process. Control charts are designed to detect when process performance is stable, indicating that the process is under control. When the process is in a stable state, decision-makers can make informed judgments and decisions on whether or not to change the process.
For a sample size of 40, the LCL formula for the x-bar chart is: LCL = x-bar-bar - 3.6 * σ/√n
Where: x-bar-bar is the mean of the means
σ is the standard deviation of the mean
n is the sample size
Putting the values, we have: LCL = 50 - 3.6 * 4.5/√40
LCL = 50 - 2.138
LCL = 47.862 or 44.1 (approximated to one decimal place)
Therefore, the LCL of a 3.6 control chart is 44.1.
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enter a negative number that has an absolute value greater than -10
Answer: -9
Step-by-step explanation: Your welcome
If you show steps i will give BRAINLIEST
Petra gives Ian the clue below to help him guess a
number.
When the number ( x ) is doubled and the product
is reduced by five, the final result is less than 23.
Which inequality correctly represents this clue?
A. 2x - 5 < 23
B. 2 (x-5) < 23
C. 2x - 5 > 23
D. 2 (x-5) > 23
Answer:
2x - 5 < 23
2x < 28
x < 14
Step-by-step explanation:
Petra gives Ian the clue below to help him guess a number.When the number (x) is doubled and the product is reduced by five, the final result is less than 23.Which inequality correctly represents this clue?
Answer:
2x - 5 < 23
Step-by-step explanation:
2x - 5 < 23
2x < 28
x < 14
équation : 3x + 4 = 10
(si vous pouvez m'expliquer svp)
Answer:
x=
Step-by-step explanation:
3x+4=10
3x=10-4
3x=6
X=
Answer: 2
Step-by-step explanation: Soustrayez 4 4 des deux côtés de l'équation. Soustrayez 4 4 de 10 10 . Divisez chaque terme en 3x=6 3 x = 6 par 3 et simplifiez. Divisez chaque terme en 3x=6 3 x = 6 par 3 3.
What is the GCF for 18, 45, and 90
Answer:
72900
Step-by-step explanation:
18 x 45 x 90=
72900
what is the length of the longest possible ladder that can negotiate a turn in a long hallway that is 14 feet wide in one direction but only 8 feet wide in the other perpendicular direction
The length of the longest possible ladder that can negotiate the turn in the hallway is approximately 16.86 feet.
To find the length of the longest ladder, we can use the Pythagorean theorem, which states that in a right-angled triangle, the square of the hypotenuse (the side opposite the right angle) is equal to the sum of the squares of the other two sides. In this case, the hallway forms a right-angled triangle, with one side measuring 14 feet and the other side measuring 8 feet.
Using the Pythagorean theorem, we can calculate the length of the hypotenuse (the ladder) as follows:
\(c^2 = a^2 + b^2\)
where c is the hypotenuse (length of the ladder), and a and b are the lengths of the other two sides.
Plugging in the values:
\(c^2 = 14^2 + 8^2\)
\(c^2 = 196 + 64\)
\(c^2 = 260\)
c ≈ √260
c ≈ 16.86 feet
Therefore, the length of the longest possible ladder that can negotiate the turn in the hallway is approximately 16.86 feet.
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Find the derivative of the function at P in the direction of A f(x,y,z):xy + yz + zx, (1,-1,-2), A = 3i + 2j - 6k (DAf) | 1(1,-1,-2) =
Therefore, the directional derivative of f at P=(1,-1,-2) in the direction of A=3i+2j-6k is -2.
To find the directional derivative of f(x,y,z) at P=(1,-1,-2) in the direction of A=3i+2j-6k, we first need to find the gradient of f at P, which is given by:
grad(f) = ∇f = (∂f/∂x)i + (∂f/∂y)j + (∂f/∂z)k
Here, f(x,y,z) = xy + yz + zx, so we have:
∂f/∂x = y + z
∂f/∂y = x + z
∂f/∂z = x + y
Thus, at P=(1,-1,-2), we have:
∇f(P) = (∂f/∂x)i + (∂f/∂y)j + (∂f/∂z)k
= (y+z)i + (x+z)j + (x+y)k
= (0+(-2))i + (1+(-2))j + (1+0)k
= -2i - 1j + 1k
Next, we need to find the unit vector in the direction of A:
|A| = sqrt(3^2 + 2^2 + (-6)^2) = 7
u = A/|A| = (3/7)i + (2/7)j - (6/7)k
Finally, we can compute the directional derivative of f at P in the direction of A as:
(DAf) | 1(1,-1,-2) = ∇f(P) · u
= (-2i - 1j + 1k) · (3/7)i + (2/7)j - (6/7)k
= -6/7 - 2/7 - 6/7
= -2
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If a cup of water is lighter than a cup of paint, then which is heavier: 100kg of water or 100kg of paint?
Both the 100kg of water and 100kg of paint weigh the same, since they both have a mass of 100kg.
How to determine the heavier substanceFrom the question, we have the following parameters that can be used in our computation:
A cup of water is lighter than a cup of paint
The initial comparison of a cup of water being lighter than a cup of paint cannot be used regarding the weight or mass of 100kg of either substance.
In this case, since both 100kg of water and 100kg of paint have the same mass,
They would also have the same weight if they were located in the same place with the same gravitational force acting upon them.
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Using the graph, determine the value of the slope. y What is the slope? 4 2 What is true about the graph? -4 -2 2 4 -2 -4
quickk
Answer: 0 and all y values are the same !
Step-by-step explanation:
an experiment consists of tossing 4 unbiased coins simultaneously. the number of simple events in this experiment is question 20answer a. 10 b. 8 c. 16 d. 25
The number of simple events in this experiment is 16.
The correct answer to the given question is option c.
The probability of an event can be calculated by dividing the number of favorable outcomes by the number of possible outcomes. A simple event is one in which only one of the outcomes can occur. For example, if a coin is tossed, a simple event would be the outcome of the coin being heads or tails.
The total number of possible outcomes in the experiment of tossing 4 unbiased coins simultaneously is 2⁴, since there are two possible outcomes for each coin. Thus, the total number of possible outcomes is 16.
Each coin has two possible outcomes: heads or tails. If all four coins are flipped, there are two possible outcomes for the first coin, two possible outcomes for the second coin, two possible outcomes for the third coin, and two possible outcomes for the fourth coin. Therefore, the total number of possible outcomes is 2 × 2 × 2 × 2 = 16.
Therefore, the number of simple events in this experiment is 16, which is option (c).
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function g is represented by th table.
x -1 0 1 2 3
g(x) 15 3 0 -¾ -15/16
Which statement correctly compares the two functions?
А.They have the same x- and y-intercepts.
B.They have different x- and y-intercepts but the same end behavior as x approaches infinity.
C.They have the same y-intercept and the same end behavior as x approaches infinity.
D.They have the same x-intercept but different end behavior as x approaches infinity
Answer:
D. They have the same x-intercept but different end behavior as x approaches infinity
Step-by-step explanation:
A careful comparison reveals the g(x) values in the table are 1/2 the y-values in the graph. The x-intercepts are the same, but the y-intercepts and end behavior are different.
a closed rectangular box with volume 6 cubic feet is made from two different types of cardboard. the top and bottom are made with a heavy-duty cardboard that costs 30 cents per square foot. the sides are made from a light-weight cardboard that costs 5 cents per square foot. find the dimensions of the box that yield the lowest cost.
As per area of rectangle, the dimensions of the box that yield the lowest cost is (1,1,6)
Area of rectangle:
The standard formula for area of rectangle is calculated as,
A = length x breadth
Given,
A closed rectangular box with volume 6 cubic feet is made from two different types of cardboard. the top and bottom are made with a heavy-duty cardboard that costs 30 cents per square foot. The sides are made from a light-weight cardboard that costs 5 cents per square foot.
Here find the dimensions of the box that yield the lowest cost.
Here let's consider the dimensions of the rectangular box be length l, breadth is b, and height is h.
Now, from the given information, the total cost can be derived as,
=> C=2lb×48+(2bh+2lh)×8
=> C=96lb+16bh+16lh
=> C=16(6lb+bh+lh) -----------------→(1)
Then the given volume is, V = lbh = 6 ---------------→(2) cubic feet.
Then the equation 2,
=> lbh = 6h = 6/lb
And then we have to substitute the value of h in equation 1, we get
=> C(l,b,h)=16(6lb+6/l+6/b)
Now we need to minimize the resulting function of two variables.
Therefore, we need to partially derivative the above function with respect to l,b. And set these equal to zero.
And the for l=0,b is undefined. So we can eliminate l=0.
Here we have to substitute l=1,b=112⇒1 in equation 2, we get
=> lbh=6(1)(1)h=6h=6h=6
Therefore, the critical point is, (1,1,6)
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find the perimeter of the following polygon in these sorts of junk food the correct unit in your answer
Solution
Given a trapezoid with the following dimensions
\(10ft,10ft,11ft,15ft\)To find the perimeter, P, of the polygon, we add up all the side lengths i.e the formula to find the perimeter, P, of the trapezoid is
\(\begin{gathered} P=a+b+c+d \\ \text{Where a, b, c and d are the side lengths} \end{gathered}\)Where
\(\begin{gathered} a=10ft \\ b=10ft \\ c=11ft \\ d=15ft \end{gathered}\)Subsitute the values into the formula above
\(\begin{gathered} P=10+10+11+15=46 \\ P=46ft \end{gathered}\)Hence, the perimeter is 46ft
kevin uses a coupon for 75% off one item. he only pays $3.00 for a train set. how much money was the train set originally?
Answer:
$4.00
Step-by-step explanation:
75% of 4
75% × 4 =
75/100 × 4 =
(75 ÷ 100) × 4 =
75 × 4 ÷ 100 =
300 ÷ 100 =
= 3
Hope this helps.
which graph represents the function y = 2x - 4
Answer:
I will change my awnser when you tell me but what are the awnser choices
Step-by-step explanation:
The graph which represents the function y = 2x - 4 is shown below.
What is a function?Function is a type of relation, or rule, that maps one input to specific single output.
In mathematics, a function is an expression, rule, or law that describes the relationship between one variable (the independent variable) and another variable (the dependent variable) (the dependent variable). In mathematics and the physical sciences, functions are indispensable for formulating physical relationships.
Linear function is a function whose graph is a straight line
We are given that;
y = 2x - 4
Now,
To find four points of y = 2x - 4, we can choose any four values of x and plug them into the equation to find the corresponding values of y. For example, if we choose x = -2, 0, 1, and 2, we get:
When x = -2, y = 2(-2) - 4 = -8 - 4 = -12. So (-2,-12) is a point on the line.
When x = 0, y = 2(0) - 4 = 0 - 4 = -4. So (0,-4) is a point on the line.
When x = 1, y = 2(1) - 4 = 2 - 4 = -2. So (1,-2) is a point on the line.
When x = 2, y = 2(2) - 4 = 4 - 4 = 0. So (2,0) is a point on the line.
Therefore, by the given function answer will be shown below.
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Growth of a Culture of Bacteria
Number of bacteria per
Day
milliliter at end of day
1
2.5 x 105
2
5.0 x 105
3
1.0 x 106
A culture of bacteria is growing at an exponential
rate, as shown in the table above. At this rate, on
which day would the number of bacteria per
milliliter reach 5.12 x 108?
A) Day 5
B) Day 9
C) Day 11
D) Day 12
Answer:
A is the answer
Step-by-step explanation:
PLEASE HELP!! With explanation/solution please!!
Step-by-step explanation:
Just sum the number of cows and buffaloes:
2p^2 - p + 4 + p^2 + p + 1 = 3p^2 +5 animals.
Answer:
Step-by-step explanation:
here is an explanation:
2p²-p+4+p²+p+1=3p²+5
You can add 2p² and p² because they are both squared (²). -p+p=0, because the first p is negative (-). Lastly, you can add 4+1=5. Hope this helped! Lmkp if you are still confused :) <3
PLEEASE HELP ME ASAP!!!
The correct answer is option (c): They are both solid lines.
Describe Inequality?In mathematics, an inequality is a statement that two values are not equal. Instead, one value is either greater than or less than the other value. Inequalities are represented by symbols such as < (less than), > (greater than), ≤ (less than or equal to), and ≥ (greater than or equal to).
For example, the inequality 5 < 8 means that 5 is less than 8, while the inequality x + 3 > 7 means that the sum of x and 3 is greater than 7.
Inequalities can be graphed on a number line, which is a horizontal line that represents the set of real numbers. To graph an inequality on a number line, you can draw a closed or open circle at the value of the variable that satisfies the inequality, and shade the region to the left or right of the circle, depending on the direction of the inequality.
For example, to graph the inequality x < 3, you would draw an open circle at 3 on the number line, and shade the region to the left of the circle, because x is less than 3. Similarly, to graph the inequality y ≥ -2, you would draw a closed circle at -2 on the number line, and shade the region to the right of the circle, because y is greater than or equal to -2.
Graphing inequalities on a number line is a useful tool for solving problems and visualizing the solutions to inequalities in one variable.
The inequality y ≤ 3x + 5 can be written as y = 3x + 5 or y > 3x + 5. Similarly, the inequality y ≤ (2/3)x + 5 can be written as y = (2/3)x + 5 or y > (2/3)x + 5. Since the inequality symbols are less than or equal to, the lines representing these inequalities will be solid lines.
Also, since the coefficients of x and y are positive in both the inequalities, the lines will have a positive slope and will slant upwards from left to right. The y-intercept of both lines is 5.
Hence, the correct answer is option (c): They are both solid lines.
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The lines will have a positive slope and slant upward from left to right since the coefficients of x and y in both inequalities are positive. Both lines have a y-intercept of 5.
Hence, option (c) is the appropriate response: Both of them are solid lines.
Describe Inequality.In mathematics, an inequality is a statement that two values are not equal. Instead, one value is either greater than or less than the other value. Inequalities are represented by symbols such as < (less than), > (greater than), ≤ (less than or equal to), and ≥ (greater than or equal to).
For example, the inequality 5 < 8 means that 5 is less than 8, while the inequality x + 3 > 7 means that the sum of x and 3 is greater than 7.
Inequalities can be graphed on a number line, which is a horizontal line that represents the set of real numbers. To graph an inequality on a number line, you can draw a closed or open circle at the value of the variable that satisfies the inequality, and shade the region to the left or right of the circle, depending on the direction of the inequality.
For example, to graph the inequality x < 3, you would draw an open circle at 3 on the number line, and shade the region to the left of the circle, because x is less than 3. Similarly, to graph the inequality y ≥ -2, you would draw a closed circle at -2 on the number line, and shade the region to the right of the circle, because y is greater than or equal to -2.
Graphing inequalities on a number line is a useful tool for solving problems and visualizing the solutions to inequalities in one variable.
The inequality y ≤ 3x + 5 can be written as y = 3x + 5 or y > 3x + 5. Similarly, the inequality y ≤ (2/3)x + 5 can be written as y = (2/3)x + 5 or y > (2/3)x + 5. Since the inequality symbols are less than or equal to, the lines representing these inequalities will be solid lines.
Also, since the coefficients of x and y are positive in both inequalities, the lines will have a positive slope and will slant upwards from left to right. The y-intercept of both lines is 5.
Hence, the correct answer is an option (c): They are both solid lines.
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PLEASE HELP I WILL MARK BRAINLIEST
Answer:
\( 27 \: {km}^{2} \)
Step-by-step explanation:
Given is the shape of a trapezoid.
Therefore,
Area of the trapezoid
\( = \frac{1}{2} (2 + 7) \times 6 \\ \\ = 9 \times 3 \\ \\ = 27 \: {km}^{2} \)
please answer it and help me im stuck
Answer:
a) 1.2 cmb) 3.5 cmStep-by-step explanation:
You want to know the adjacent side of the designated angles in a right triangle with side lengths 1.2, 3.5, and 3.7 cm, and acute angles 19° and 71°.
Adjacent sideIn a right triangle, the term "adjacent side" refers to the ray forming the acute angle that is not the hypotenuse (longest side).
a) 71°The rays forming the 71° angle are shown as having lengths 1.2 cm and 3.7 cm. The "adjacent side" is the shorter of these, the one that is not the hypotenuse.
the side adjacent to the 71° angle is 1.2 cm
b) 19°The rays forming the 19° angle are shown as having lengths 3.5 cm and 3.7 cm. The "adjacent side" is the shorter of these, the one that is not the hypotenuse.
the side adjacent to the 19° angle is 3.5 cm
__
Additional comment
Each angle in the triangle is formed from two sides of the triangle. The third side is the "opposite" side. The side opposite 19° is 1.2 cm; the side opposite 71° is 3.5 cm; the side opposite 90° is 3.7 cm. As you can see, the order of side lengths (smallest to largest) is the same order (smallest to largest) as opposite angles.
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A six-sided die is rolled and a coin is tossed. The probability of getting a tail on the coin and a 2 on the die is 8.3%. Is this an example of a theoretical or empirical probability?
This is an example of a theoretical probability.
Theoretical probability is calculated based on the possible outcomes and their likelihood without conducting any experiments or observations. In this case, the probability of getting a tail on the coin is 1/2 (since there are 2 sides) and the probability of getting a 2 on the six-sided die is 1/6 (since there are 6 sides).
To find the combined probability, you multiply the individual probabilities: (1/2) * (1/6) = 1/12, which equals approximately 8.3%.
This is an example of a theoretical probability, as it is based on the assumption of a fair six-sided die and a fair coin. The probability of getting a tail on the coin is 0.5, and the probability of rolling a 2 on the die is 1/6.
Multiplying these probabilities gives a theoretical probability of 0.5 ×1/6 = 1/12, which is equivalent to 8.3% (rounded to one decimal place).
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A farmer sells 7.6 kilograms of apples and pears at the farmer's market. 3 5 of this weight is apples, and the rest is pears. How many kilograms of pears did she sell at the farmer's market?
Answer:
4.1 kilograms
Step-by-step explanation:
A farmer sells 7.6 kilograms of apples and pears at the farmer's market. 3.5 of this weight is apples, and the rest is pears. How many kilograms of pears did she sell at the farmer's market?
= 7.6 kilograms - 3.5 kilograms
= 4.1 kilograms
The number of pancakes y is proportional to the cups of pancake mix x that is used to make the pancake batter. The pancake batter will make 10 pancakes when 2 cups of pancake mix is used. Write an equation that represents the situation.
Answer:
y=5x
Step-by-step explanation:
10=m x 2
m=5
Brainliest?
Answer: For the first one, it’s y=5x and even though you didn’t put it, for the second question, it’s 30 dollars
Step-by-step explanation:
1. 10/2=5. Y=5x
2. 5*5 = $25.00
312.25 squared that's it
Answer:
97500.0625
Step-by-step explanation:
Do 312.25*312.25
which is 97500.0625
Answer:
97500.0625
Step-by-step explanation:
Anything squared is that thing multiplied by itself, and 312.25 times 312.25 is 97500.0625.
Write as an algebraic expression: the difference of 27 and 5
The algebraic expression of the statement given as the difference of 27 and 5 is 27 - 5
How to write the statement as an algebraic expression?The statement is given as:
the difference of 27 and 5
Difference means minus.
The minus sign is represented as -
This means that the statement given as: the difference of 27 and 5
Can be represented as
27 minus 5
So, have
27 - 5
Hence, the algebraic expression of the statement given as the difference of 27 and 5 is 27 - 5
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I have no idea about this.
Can anyone suggest any approach?
Answer:
Step-by-step explanation:
translate
Help me anyone? Tis greatly appreciated!
Answer:
N
Step-by-step explanation:
Have a great day! Hope this helps :)
The shelf is made of 3 pieces of wood, each 0.3 meters wide. There is also 0.05 meter of space between the shelf and wall on each side. What is the width, in meters, of Joslyn's closet
Answer:
1.05
Step-by-step explanation:
To start, you need to know how long the shelving is, so you would multiply 0.3*3 since there are three pieces of wood. After you do that, you need to find out exactly how much space is from the shelving to the wall, so multiply 0.05*2 since there are two sides of the shelf. Add it all together for a total of 1.05
My calculator work will be posted below.
If you need more help, message me!
If triangle RST and triangle XYZ are similar, which of these equations must be true?
Answer: A
Step-by-step explanation:
If they are similar, that means the proportions for corresponding sides will be the same.
I personally ignore the picture and use the labels of "triangle RST and triangle XYZ" that the problem gives because the XYZ picture is not lined up with the similarity it has with RST.
(A) says that side ST is corresponding with side YZ,
[] Triangle RST and triangle XYZ
-> Correct
(A) also says that side RT is corresponding with size XZ,
[] Triangle RST and triangle XYZ
-> Correct
This means that option A is the correct answer.
1. Explain how a logarithmic function relates to an exponential function.
2. Explain the format of the logarithmic function log3 (x + 5) = 4 and then
solve.
Logarithmic functions and exponential functions are inverse functions of each other
The value of x in the equation log₃ (x + 5 ) = 4 is 76
How to solve the functionThe format of the logarithmic function log₃ (x + 5 ) = 4 is
log of (x + 5) in base 3 equals 4solving the equation
3⁴ = x + 5
81 = x + 5
x = 76
the solution to the equation log3 (x + 5) = 4 is x = 76.
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You have two biased coins. coin a comes up heads with probability 0.1. coin b comes up heads with probability 0.6. however, you are not sure which is which, so you choose a coin randomly and flip it. if the flip is heads, you guess that the flipped coin is b. otherwise, you guess that the flipped coin is
The probability that our guess is correct is 0.857.
What exactly is probability?Probability is simply the likelihood of something occurring. When we are uncertain about the result of an event, we might discuss the probabilities of several outcomes—how likely they are.
Explanation in detail:
A Conditional Probability with Biased Coins is used to answer the given question.
Given information:
P(Head | A) = 0.1 and P(Head | B) = 0.6.
We know that P(B) = 0.5 = P(A) by applying Bayes' theorem, because coins A and B are equally likely to be chosen.
P(Head) now equals P(A) P(head | A) + P(B) P(Head | B).
By inserting the value, we obtain P(Head) = 0.5 0.1 + 0.5 0.6 P(Head) = 0.35
When we enter this value into, we obtain Similarly.
As a result, the likelihood of our guess being true is 0.857.
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