Answer:
f(x)will be explained above
Construct an R chart and answer the specific questions based on the given data sets.
Select the correct upper control limit for the R chart.
UCL = 29.791
UCL = 29.210
UCL = 28.000
UCL = 54.750
Note that the UCLr the correct upper control limit is 29.210 (Option B) See the attached excel calculation and the related graph.
What is an R-Chart?When samples are taken at regular intervals from an industrial or commercial process, the "bar x and R chart," also known as a control chart, is a form of scheme used in statistical process control to concurrently monitor the mean and range of a normally distributed variable.
A sample value is regarded to be a specific source of variation when it exceeds the upper control limit. The upper limit of the common cause variation is also defined using it.
To derive the UCLr, execture the following:
UCLr = (Sum of Range (r)/Total Sample) * D4
Sum of range is = 192
Total Sample = 15
D4 = 2.282
Note that D4 is a control chart constant that is used to compute the upper control limit for range. The value depends on the number of items in the subgroup.
In this case, the number of observations int he subgroup (that is Box Weight) is 4.
Hence;
UCLr = (192/15) * 2.282
UCLr = 29.2096
UCLr [tex]\approx[/tex] 20.210
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Which is the net for this rectangular prism?
The figure that satisfies the condition of the net for the rectangular prism is the figure in the option at the bottom right of the screen.
What is a rectangular prism?A rectangular prism is a three dimensional figure consisting of six rectangular shaped faces, with the pair of opposite faces parallel to each other.
The net for the rectangular prism is one that can be folded to produce the rectangular prism.
The net of the rectangular prism will have the faces with the longest sides penultimate to each other.
The figure that satisfies the condition of the faces with the longest sides being separated by another side in between is the figure on the bottom right of the the screen. Please find attached
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300.15 ÷ 23 in long method
i need help ASAP LIKE RNN BRO
Answer:
the answer is D.
Step-by-step explanation:
Answer: (3,2)
Step-by-step explanation:
There are 3 weeks and 2 ponchos
Solve for x.
[tex]\mathrm{3^{2x}=11}[/tex]
[tex]\sf[ Round\; to \;two \;decimal \;places\; as\; needed][/tex]
Step-by-step explanation:
3^2x = 11
we take the logarithm (to the base of 3) of both sides.
log3(3^2x) = log3(11)
2x = log3(11) = log(11)/log(3)
x = log(11)/log(3) / 2 = log(11)/(2×log(3)) =
= 1.091329169... ≈ 1.09
Answer:
3^2x = 11
we take the logarithm (to the base of 3) of both sides.
log3(3^2x) = log3(11)
2x = log3(11) = log(11)/log(3)
x = log(11)/log(3) / 2 = log(11)/(2×log(3)) =
= 1.091329169... ≈ 1.09
Step-by-step explanation:
Margo borrows $1100, agreeing to pay it back with 4% annual interest after 6 months. How much interest will she pay?
Margo will pay $22 in interest after 6 months.
Margo borrows $1,100 and agrees to pay it back with a 4% annual interest rate after 6 months. To calculate the interest she will pay, follow these steps:
1. Convert the annual interest rate to a decimal: 4% = 0.04.
2. Calculate the interest for one year: Principal x Annual Interest Rate = Interest for One Year. In this case: $1,100 x 0.04 = $44.
3. Since Margo is paying the loan back after only 6 months, we need to find the interest for half a year. To do this, simply divide the interest for one year by 2: $44 ÷ 2 = $22.
So, Margo will pay $22 in interest after 6 months.
In summary, Margo borrows $1,100 at a 4% annual interest rate. We first convert the interest rate to a decimal (0.04) and find the interest for one year by multiplying the principal by the annual interest rate ($1,100 x 0.04 = $44). Finally, we calculate the interest for 6 months by dividing the one-year interest by 2 ($44 ÷ 2 = $22). Therefore, Margo will pay $22 in interest after 6 months.
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Can someone help me on number 1
Answer:
[tex]P = 20.4 in[/tex], [tex]A = 22.4 in^2[/tex]
Step-by-step explanation:
P = 2l + 2w
A = lw
For this figure l = 7in and w = 3.2 in
P = 2l + 2w
P = 2(7) + 2(3.2)
P = 14 + 6.4
P = 20.4 in
A = lw
A = 7 x 3.2
A = 22.4 in^2
Use the standard normal table to determine the percentage of drinks that can be estimated to take more than 3 minutes to make. Type the correct answer in the box. Use numerals instead of words. Express the answer to the nearest percent. About % of drinks will take more than 3 minutes to make.
Answer:
70%
Step-by-step explanation:
you do it
HELLP HELP PLEASEE BROOOO
The equivalent expressions of the expression (3/4)x-1 are (3x/4) - 1, 3x/4 - 4/4 and 0.75x - 1
The given expression is (3/4)x-1
Three divided by four times of x minus one
We have to find three equivalent expressions of given expression
Equivalent expressions are expressions that work the same even though they look different.
(3x/4) - 1
3x/4 - 4/4
and 0.75x - 1 are equivalent expressions
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Need help asap please! If you don’t know the answer, don’t comment.
The value of the angle in the given interval is; θ = 180°
How to solve Trigonometric ratio problems?We are given the trigonometric problem as:
5 sec θ + 5 = 0
Now, the values must be on the interval:
0° ≤ θ < 360°
We know that sec θ = 1/cos θ
Thus:
5/cos θ + 5 = 0
5/cos θ = -5
cos θ = -5/5
cos θ = -1
θ = cos⁻¹-1
θ = 180°
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A car fuel tank can take up to 50 litres of petrol. Given that 8 pints = 1 gallon , work out how many gallons of petrol this fuel tank can take. Round your answer to the nearest gallon
Please help :) Asap
Answer:
The answer is 13 to the nearest gallon
Step-by-step explanation:
1litre =0.264gallon
50litre=x
x×1=50×0.264
x=13.2gallon
x=13 to the nearest gallon
find the real-number root.
√-1.21
Answer:
1.1 is the square root number
Step-by-step explanation:
Answer:
Step-by-step explanation:
To find the answer you find the sqrt of 1.21 then add the number i to the end.
[tex]\sqrt{-1.21} =\\\sqrt{-1.21} = 1.1 * i\\\sqrt{-1.21} = 1.1 i\\[/tex]
The real number root is 1.1 or the number without the i
Write a system of inequalities that describes all the given conditions, and graph the feasible region of
Joyce is the marketing director for a new company selling a fashion collection for young women and she wishes to place ads in two magazines: magazine V and magazine E. Joyce
estimates that each one-page ad in magazine V will be read by 1.7 million people and each one-page ad in magazine E will be read by 1.2 million people. Joyce wants to reach at
least 9 million readers and to place at least 2 ads in each magazine.
A system of inequalities that describes all the given conditions include the following:
y ≥ -1.42x + 7.50
x ≥ 2
y ≥ 2
How to write an equation to model this situation?In order to write a system of inequalities to describe this situation, we would assign variables to the number of ads in magazine V and the number of ads in magazine E respectively, and then translate the word problem into a linear equation as follows:
Let the variable x represent number of ads in magazine V.Let the variable y represent number of ads in magazine E.Since Joyce estimated that each one-page ad in magazine V would be read by 1.7 million people and each one-page ad in magazine E would be read by 1.2 million people and she wishes to reach at least 9 million readers and to place at least 2 ads in each magazine, a system of inequalities which can be used to model the situation is given by;
1.7x + 1.2y ≥ 9
1.2y ≥ -1.7x + 9
y ≥ -1.7x/1.2 + 9/1.2
y ≥ -1.42x + 7.50
x ≥ 2
y ≥ 2
Next, we would use an online graphing calculator to plot the above system of linear equations in order to determine its solution as shown in the graph attached below.
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what should be subtracted from -5/4 to get -1
Answer:
-1/4
Step-by-step explanation:
you can use equation
-5/4 - x = -1
on solving
value of x is -1/4
Solve the following equation
3x²+x-12
= 1
b
Od
x=-12 x=11
x=4 x=-3
x=12 x=-1
x=3 x=-4
A tennis ball manufacturer wants to estimate the mean circumference of tennis balls within 0.05 inch.
Assume the population of circumferences is normally distributed. Determine the minimum sample size
required to construct a 95% confidence interval for the population mean. Assume the population
standard deviation is 0.10 inch.
The minimum sample size required to construct a 95% confidence interval for the population mean of tennis ball circumferences with a maximum error of estimate of 0.05 inch, assuming a population standard deviation of 0.10 inch, is 62.
To find the minimum sample size required to construct a 95% confidence interval for the population mean, we can use the formula:
n = (z*σ / E)^2
where:
n = sample size
z = z-score for the desired confidence level (95% confidence level corresponds to a z-score of 1.96)
σ = population standard deviation
E = maximum error of estimate, which is half the width of the confidence interval (in this case, 0.05/2 = 0.025)
Substituting the given values, we get:
n = (1.96 * 0.10 / 0.025)²
n = 61.44
Rounding up to the nearest whole number, we get a minimum sample size of 62.
Therefore, the minimum sample size required to construct a 95% confidence interval for the population mean of tennis ball circumferences with a maximum error of estimate of 0.05 inch, assuming a population standard deviation of 0.10 inch, is 62.
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Plot 7/10 and 1 1/5 on the number line below.
Answer:
where??
Step-by-step explanation:
give the missing numbers in the equations bellow
1.9x_x4=
2.1x4x0=_x_x0
3._+9=3+14
4.8+7+2=20_2+_
1) 9 × 1 × 4
2) 1 × 4 × 0 = 1 × 4 × 0
3) 8 + 9 = 3 + 11
4) 8 + 7 + 2 = 20 ÷ 2 + 7
A chemical manufacturer wants to lease a fleet of 24 railroad tank cars with a combined carrying capacity of 520,000 gallons. Tank cars with three different carrying capacities are available: 8,000 gallons, 16,000 gallons, and 24,000 gallons. (A) Write the linear system of equations in terms of
x,y
and
z;x,y
and
z
being the number of tank-cars with carrying capacities of
8,000,16,000
and 24,000 gallons respectively. (B) Solve this system of equations. (C) If the cost of leasing an 8,000 gallon tank car is
$450
per month, a .16, 000 gallon tank car is
$650
per month, and a 24,000 gallon tank car is
$1,150
per month, then which of the solutions would minimize the monthly leasing cost?
By creating and solving various equation-:(A) x + y + z = 24, x(8000) + y(16000) + z(24000) = 520000. (B) x = 8, y = 8, z = 8. (C) Solution with 8 tank cars of each capacity minimizes the monthly leasing cost at $15,800.
What is Cost?Cost refers to the monetary value of goods, services or resources that are used or consumed to achieve a particular goal or objective.
What is equation?An equation is a mathematical statement that asserts that two expressions are equal. It contains variables, coefficients, and mathematical operators.
According to the given information:
(A) Let x be the number of 8,000 gallon tank cars, y be the number of 16,000 gallon tank cars, and z be the number of 24,000 gallon tank cars. The total carrying capacity can be expressed as:
8000x + 16000y + 24000z = 520000 ... (1)
Since we have a total of 24 tank cars, the total number of tank cars can be expressed as:
x + y + z = 24 ... (2)
(B) To solve this system of equations, we can use substitution. Solving equation (2) for x, we get:
x = 24 - y - z
Substituting this expression for x into equation (1), we get:
8000(24 - y - z) + 16000y + 24000z = 520000
Simplifying this equation, we get:
8000y + 16000z = 200000
Dividing both sides by 8000, we get:
y + 2z = 25 ... (3)
We can use equations (2) and (3) to solve for y and z:
y = 25 - 2z, x = 24 - y - z
Substituting these expressions into equation (1), we get:
8000(24 - (25 - 2z) - z) + 16000(25 - 2z) + 24000z = 520000
Simplifying this equation, we get:
16000z = 160000
z = 10
Substituting z = 10 into y = 25 - 2z and x = 24 - y - z, we get:
y = 5, x = 9
Therefore, the solution is x = 9, y = 5, and z = 10.
(C) To minimize the monthly leasing cost, we need to calculate the total cost for each solution and choose the one with the lowest cost. The monthly leasing cost can be expressed as:
450x + 650y + 1150z
Substituting x = 9, y = 5, and z = 10, we get:
450(9) + 650(5) + 1150(10) = $28,350
Therefore, the solution that minimizes the monthly leasing cost is x = 9, y = 5, and z = 10, with a monthly leasing cost of $28,350.
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Radon is a naturally occurring poisonous gas that has a half-life of about 4 days. After 15 days, about how many millirems of a 687 mrem sample will remain? Round to 3 decimal places. If the answer does not have 3 decimal places use zeros so that it does. Do not include units in the answer. Be sure to attach math work to support your answer and earn credit.
Radon having a half-life of about 4 days, after 15 days, 51.061 millirems of a 687 mrem sample will remain.
We know the half life formula,
[tex]N(t) = N_{o}\ (\frac{1}{2} ) ^{t/t_{1/2}[/tex],
where, N(t) = quantity of the substance remaining
[tex]N_{o}[/tex] = Initial quantity of the substance
t = time elapsed
[tex]t_{1/2}[/tex] = half life of the substance
Given,
Initial quantity ([tex]N_{o}[/tex]) = 687 mrem
Time elapsed (t) = 15 days
Half life ([tex]t_{1/2}[/tex] ) = 4 days
Hence, N(t) = [tex]687 \ (\frac{1}{2}) ^{15/4}[/tex]
⇒ N(t) = [tex]687\ (\frac{1}{2} )^{3.75}[/tex]
⇒ N(t) = 51.061
Therefore, the remaining amount of the radon sample after 15 days is 51.061 mrem.
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The sum of two numbers is 42. The sum of the smaller and 4 times the larger is 147. Find the
numbers.
Answer:
Let x = smaller number and
y = larger number.
x + y = 42
x + 4y = 147
----------------
3y = 105
y = 35, so x = 7
The numbers are 7 and 35.
7 + 4(35) = 7 + 140 = 147
A candy company produces packets of candy every day. Each packet they produce has a slightly unique weight. The mean of the weights is 72g, and the variance of the weights is 16g.
What is the minimum weight of a packet of candy with a z-score of -0.6? (round to the nearest tenth as needed)
To determine the minimum weight of a packet of candy with a z-score of -0.6, we need to use the formula:
z = (x - μ) / σ
where:
z = -0.6 (given)
μ = 72g (given)
σ = sqrt(16g) = 4g (since variance = standard deviation squared)
Substituting the values in the formula, we get:
-0.6 = (x - 72) / 4
Multiplying both sides by 4, we get:
-2.4 = x - 72
Adding 72 to both sides, we get:
x = 69.6g
Therefore, the minimum weight of a packet of candy with a z-score of -0.6 is approximately 69.6g (rounded to the nearest tenth).
Jan makes $25 an hour. Next year, she will make an additional $2.50 per hour. Which proportion represents her pay increase?
The proportion to determine the pay increase of Jan is 25/x = 27.50/y , where x is the current year and y is the next year
What is Proportion?The proportion formula is used to depict if two ratios or fractions are equal. The proportion formula can be given as a: b::c : d = a/b = c/d where a and d are the extreme terms and b and c are the mean terms.
The proportional equation is given as y ∝ x
And , y = kx where k is the proportionality constant
It demonstrates the equality of the relationship between the expressions printed on the left and right sides.
Given data ,
Let the proportion be represented as A
Now , the value of A is
Let the amount Jan makes this year ( x ) be = $ 25
And , Next year, she will make an additional $2.50 per hour
Let the amount Jan makes next year ( y ) be = $ 27.50
On simplifying the proportion , we get
25/x = 27.50/y
Hence , the proportion is 25/x = 27.50/y
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Triangle ABC ~ triangle DEF.
triangle ABC with side AB labeled 11, side CA labeled 7.6 and side BC labeled 7.9 and a second triangle DEF with side DE labeled 2.2
Determine the measurement of FD.
FD = 1.52
FD = 1.58
FD = 1.1
FD = 5.5
Answer:
To solve for FD, we can use the property of similar triangles, which states that corresponding sides of similar triangles are in proportion. Specifically, we can use the ratios of corresponding sides of triangle ABC and triangle DEF:
AB/DE = BC/EF = CA/FD
Plugging in the given values, we get:
11/2.2 = 7.9/EF = 7.6/FD
Simplifying the middle ratio, we get:
EF = (2.2 x 7.9)/11 = 1.58
Now we can solve for FD by rearranging the third ratio:
7.6/FD = 11/2.2
FD = (2.2 x 7.6)/11 = 1.52
Therefore, FD = 1.52 (to two decimal places).
Step-by-step explanation:
The length of side FD is 1.58 .
Given,
Triangle ABC ~ Triangle DEF
So,
Property of similar triangles, which states that corresponding sides of similar triangles are in proportion.
Specifically, we can use the ratios of corresponding sides of triangle ABC and triangle DEF:
AB/DE = BC/EF = CA/FD
Substitute the given values, we get:
11/2.2 = 7.9/EF = 7.6/FD
Simplifying the middle ratio, we get:
EF = (2.2 x 7.9)/11 = 1.58
Now we can solve for FD by rearranging the third ratio:
7.6/FD = 11/2.2
FD = (2.2 x 7.6)/11 = 1.52
Therefore, FD = 1.52
Hence option 2 is correct .
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Without making any calculations, which distribution of data has the largest standard deviation?
O 1, 1, 1, 1, 4, 4, 7, 7, 7, 7
O 1, 1, 1, 4, 4, 4, 4, 7, 7, 7
O1, 1, 4, 4, 4, 4, 4, 4, 7, 7
O1, 4, 4, 4, 4, 4, 4, 4, 4, 7
The distribution with the largest standard deviation is option 4: 1, 4, 4, 4, 4, 4, 4, 4, 4, 7.
How to determine distribution of data has the largest standard deviationThe reason for this is because it has the greatest spread of numbers, with both a low value of 1 and a high value of 7, and a larger number of values further from the mean of 3.8.
However, it would be necessary to confirm this as it's is just an assumption
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Determine whether y2=2x−2 is a function.
y² = 2x - 2 is not a function since the one value of x related to more than one values of y via this given relation.
A relation is called a function only if it is well defined that is each input value that is each value of x is related to only one output value that is the value of y.
Here given the relation is y² = 2x - 2
So, either y = + √(2x - 2) or y = - √(2x - 2)
For suppose one value of x is, x = 3.
y = + √(2*3 - 2) = + √(6 - 2) = + √4 = + 2
y = - √(2*3 - 2) = - √(6 - 2) = - √4 = - 2
So here one input value x = 3 is related to two values of y that are y = -2, +2 via the relation y² = 2x - 2.
Hence, y² = 2x - 2 is not a function.
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A bag contains 1 red, 1 yellow, 1 blue, and 1 green marble. What is the probability of choosing a green marble,
replacing it, and then choosing a red marble?
O 1/16
O 1/12
O 1/4
O 1/2
Who can help me solve this
The statement is true for all real numbers x and y, and the true set VXEY is the set of all real numbers.
What is the truth value of the statement "∀x∃y (Y ∧ 2x² + y ≤6)"?The truth value of the statement "∀x∃y (Y ∧ 2x² + y ≤6)" is determined by the domain of x and y.
Assuming that x and y are real numbers:
The truth value of the statement is where the inequality 2x² + y ≤ 6 is true for all x and some y.
Rewriting the inequality in y as y ≤ 6 - 2x²
For any given value of x, y = 6 - 2x².
This satisfies the inequality, since:
2x² + y = 2x² + (6 - 2x²) = 6 ≤ 6
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Use the image to determine the direction and angle of rotation.
PLS HELP graph of triangle ABC in quadrant 4 and a second polygon A prime B prime C prime in quadrant 1
270° counterclockwise rotation
180° clockwise rotation
90° counterclockwise rotation
90° clockwise rotation
Answer:
180
Step-by-step explanation:
180
Got it correct
The price of a desk was originally $70. The desk is now on sale for 18% off. What is the sale price of the desk? Use y to represent the sale price of the desk and write an equation to represent the problem.
Answer:
$57.4
Step-by-step explanation:
100 - 18 = 82
y = 82% of 70
= 82/100 * 70
= 8.2 * 7
= 57.4
Hence,
Sale price: $57.4
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