Please help me out! Gonna be posting alot of these so if your good at this stay tuned lol but this is sophomore geometry (not advanced)
Answer: 63.8
Step-by-step explanation:
R = {(-3, -2), (-3, 0), (-1, 2), (1, 2)}
Find the values of a and b that complete the mapping diagram.
An effective visual representation of a function or a mapping between two sets is a mapping diagram. It consists of two vertical columns, one of which represents the domain set items and the other of which represents the range set elements. The items in the range set that match to those in the domain set are listed in the right column, and vice versa.
I assume you are given a mapping rule that relates elements in a set to other elements in another set, and you are asked to complete a mapping diagram based on this rule.
If the mapping rule is not specified, we cannot determine the values of a and b. However, assuming that the mapping rule is such that each element (x, y) in the set R is mapped to [tex](x + a, y + b)[/tex], we can complete the mapping diagram as follows:
The given set R is:
R = {(-3, -2), (-3, 0), (-1, 2), (1, 2)}
If we apply the mapping rule to each element in R, we get:
(-3, -2) → (-3 + a, -2 + b)
(-3, 0) → (-3 + a, 0 + b)
(-1, 2) → (-1 + a, 2 + b)
(1, 2) → (1 + a, 2 + b)
To complete the mapping diagram, we need to find the values of a and b such that each mapped element is in the set R. That is, we need to find a and b such that:
(-3 + a, -2 + b) ∈ R
(-3 + a, 0 + b) ∈ R
(-1 + a, 2 + b) ∈ R
(1 + a, 2 + b) ∈ R
Substituting the values of R into each of these equations, we get:
(-3 + a, -2 + b) = (-3, -2), which gives a = 0 and b = 0
(-3 + a, 0 + b) = (-3, 0), which gives a = 0 and b = 0
(-1 + a, 2 + b) = (-1, 2), which gives a = 0 and b = 0
(1 + a, 2 + b) = (1, 2), which gives a = 0 and b = 0
Therefore, the values of a and b that complete the mapping diagram are a = 0 and b = 0.
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h(t) = -16t ² + 110t + 72
The function above models the height, h, in feet, of an object above the ground t seconds after being launched straight up in the air. What does the number 72 represent in the function?
*
1 point
A The initial height, h, in feet, of the object.
B The maximum height, h, in feet, of the object.
C The initial speed, in ft per second, of the object.
D The maximum speed, feet per second, of the object.
Answer:
A. The initial height, h, in feet, of the object.
Answer:
A The initial height, h, in feet, of the object.
Step-by-step explanation:
Let t = 0
h(t) = -16t ² + 110t + 72
h(0) = -16(0)² + 110 × 0 + 72
h(0) = 72
The height at time zero is 72.
72 is the initial height.
Answer: A The initial height, h, in feet, of the object.
What is the area of this parallelogram?
O A = 20 ft²
O A=213ft²
O A = 33 ft²
O A=41 ft²
5 ft
4 ft
81 ft
The area of the given parallelogram is A- 33(1/2) ft² using the base and height of the parallelogram. the correct answer is (c).
What is a parallelogram?A quadrilateral with two sets of analogous edges is appertained to as a parallelogram. In a parallelogram, the opposing edges are of equal length, and the opposing angles are of equal size. also, the internal angles that are supplementary to the transversal on the same side. 360 ° is the sum of all internal angles. A parallelepiped is a three- dimensional shape with parallelogram- shaped sides. The base( one of the analogous lines) and height( the distance from top to bottom) of the parallelogram determine its area. A parallelogram's border is determined by the lengths of its four edges. The characteristics of a parallelogram are participated by the shapes of a square and cell. What's area? The size of a section on a face is determined by its area. face area refers to the area of an open face or the border of a three- dimensional object, whereas the area of an area area plane region or area area plane area refers to the area of a shape or planar lamella.
The area of a parallelogram is given by
[tex]base*height.base=8(1/3)ft[/tex]
height=4ft
[tex]Area=b*h =(25/3)*4 =100/3 = 33[/tex]
[tex][base]\frac{1}{3}[(hieght)] ft^{2}[/tex]
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if y varies directly as x, and y=7 when x=3, find when x=7
By definition, direct variation takes the following form:
y=kx
Where k is the proportionality constant.
You can find k given the information in the problem:
7=3k
k=3/7
You can now find y when x=7 as follows:
y=(7*3)
Values can be substituted. Then:
y=(7*7)/3
y=49/3
If y varies directly from x, then the value of y = 49/3 when x = 7.
If y varies directly from x, we can write its relationship in the form of the equation below :
y = m*x
Where m is the slope of the line on the graph.
From the given data:
y=7
x=3,
We can substitute these values in the above equation and find m :
7 = m*3
m = 7/3
So, the equation can also be written as follow:
y = 7/3 x
Finding y when x=7, then substituting the x value in the above equation we get:
y = (7/3)*(7)
y = 49/3
Therefore the value of the y = 49/3.
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Find all cube roots of the complex number 64(cos (219°) + i sin (219°)). Leave answers in polar form
and show all work
[tex]\sqrt[n]{z}=\sqrt[n]{r}\left[ \cos\left( \cfrac{\theta+2\pi k}{n} \right) +i\sin\left( \cfrac{\theta+2\pi k}{n} \right)\right]\quad \begin{array}{llll} k\ roots\\ 0,1,2,3,... \end{array} \\\\[-0.35em] \rule{34em}{0.25pt}\\\\ \boxed{k=0}\hspace{5em} \sqrt[ 3 ]{64} \left[ \cos\left( \cfrac{ 219^o + 360^o( 0 )}{3} \right) +i \sin\left( \cfrac{ 219^o + 360^o( 0 )}{3} \right)\right][/tex]
[tex]\sqrt[ 3 ]{64} \left[ \cos\left( \cfrac{ 219^o }{3} \right) +i \sin\left( \cfrac{ 219^o }{3} \right)\right]\implies \boxed{4[\cos(73^o)+i\sin(73^o)]} \\\\[-0.35em] ~\dotfill\\\\ \boxed{k=1}\hspace{5em} \sqrt[ 3 ]{64} \left[ \cos\left( \cfrac{ 219^o + 360^o( 1 )}{3} \right) +i \sin\left( \cfrac{ 219^o + 360^o( 1 )}{3} \right)\right][/tex]
[tex]\sqrt[ 3 ]{64} \left[ \cos\left( \cfrac{ 579^o }{3} \right) +i \sin\left( \cfrac{ 579^o }{3} \right)\right]\implies \boxed{4[\cos(193^o)+i\sin(193^o)]} \\\\[-0.35em] ~\dotfill\\\\ \boxed{k=2}\hspace{5em} \sqrt[ 3 ]{64} \left[ \cos\left( \cfrac{ 219^o + 360^o( 2 )}{3} \right) +i \sin\left( \cfrac{ 219^o + 360^o( 2 )}{3} \right)\right] \\\\\\ \sqrt[ 3 ]{64} \left[ \cos\left( \cfrac{ 939^o }{3} \right) +i \sin\left( \cfrac{ 939^o }{3} \right)\right]\implies \boxed{4[\cos(313^o)+i\sin(313^o)]}[/tex]
A builder is creating a scale drawing of a plot of land as shown. The original plot of land is 335 meters wide. The drawing uses a 1 scale factor of 500. 7. Find the area of the original plot of land in square meters and the area of the scale drawing in square centimeters. (Example 5)
Answer:
Step-by-step explanation:
36 +55
The mapping diagram represents a relation where x represents the independent variable and y represents the dependent variable. Is the relation a function? Explain. Yes, because for each input there is exactly one output Yes, because for each output there is exactly one input No, because for each input there is not exactly one output No, because for each output there is not exactly one input
Answer:No
Step-by-step explanation:
Because each X is an input, this means that Y is obviously the output.
In order for a set of data, there must ALWAYS be one output for every input, no more, no less. Because this particular set of data has multiple Y values with respect to different X values, this is not a function. Your correct answer is "No, because for each input there is not exactly one output."
Mr. Kha Lipat wants to earn 8% on his investment. How much money should he invest today in order to receive 400. 00 one year from now?
Mr. Kha Lipat should invest $5,000 today in order to receive $400.00 in interest one year from now at an 8% interest rate.
To calculate how much money Mr. Kha Lipat should invest today to receive $400.00 one year from now at an 8% interest rate, we can use the formula for calculating simple interest though compound intrest:
I = P * r * t
where I is the interest earned, P is the principal (the initial amount invested), r is the interest rate (as a decimal), and t is the time period (in years).
We know that Mr. Kha Lipat wants to earn $400.00 in interest, the interest rate is 8% or 0.08 (as a decimal), and the time period is 1 year. We can plug these values into the formula and solve for P:
I = P * r * t
400 = P * 0.08 * 1
400 = 0.08P
P = 400 / 0.08
P = 5000
Therefore, Mr. Kha Lipat should invest $5,000 today in order to receive $400.00 in interest one year from now at an 8% interest rate.
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Find the values of x and y. Show all of your work.
juan owns 7 pairs of pants, 5 shirts, 6 ties, and 8 jackets. how many different outfits can he wear to school if he must wear one of each item?
Answer: I believe he could wear 768 outfits
Step-by-step explanation: I had a similar question consisting of the same numbers.
a radioactive material decays according to the formula , where a is the final amount, is the initial amount and t is the time in years. find k, if 700 grams of this material decays to 550 grams in 8 years.
the decay constant for this material is approximately 0.0445.when t = 8 years, the amount of the material remaining is 550 grams.
The formula for radioactive decay is given by:
a = [tex]e^(-kt)\\[/tex] * A
where a is the final amount,A is the initial amount, t is the time in years, and k is the decay constant.
We can use the given information to solve for k as follows:
When t = 0, a = A. So, we have:
A = [tex]e^(0 * k)[/tex] * A
Simplifying this gives:
1 = e^0
Therefore, we can see that k = 0 at the start of the decay process.
Now, when t = 8 years, the amount of the material remaining is 550 grams. Therefore, we have:
550 = [tex]e^(-8k)[/tex] * 700
Dividing both sides by 700 and taking the natural logarithm of both sides, we get:
ln(550/700) = -8k
Simplifying this gives:
k = ln(700/550)/8
Using a calculator, we can evaluate this expression to get:
k ≈ 0.0445
Therefore, the decay constant for this material is approximately 0.0445.
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Convert the mixed number below to an improper fraction 4 1/2
Answer:9/2
Step-by-step explanation:
Answer:
To convert mixed number 4 1/2 to improper fraction, you follow these steps: Multiply the whole number by the denominator 4 × 2 = 8 Add the product from Step 1 to the numerator
Step-by-step explanation:
First, note that 4 1/2 is a mixed number, also know as mixed fraction. It has a whole number and a proper fraction. The numbers in the mixed fraction are defined as follow:
4 = whole number
1 = numerator
2 = denominator
To convert mixed number 4 1/2 to improper fraction, you follow these steps:
Multiply the whole number by the denominator
4 × 2 = 8
Add the product from Step 1 to the numerator
8 + 1 = 9
Write answer from Step 2 over the denominator
9/2
The mixed number 4 1/2 converted to improper fraction is therefore :
9/2
I Really want this pleaseeeeeeeeeeeeeeeeeee
Answer:
no
Step-by-step explanation:
using Pythagorean theorem:
[tex]26^{2} +42^{2}=50^{2}[/tex]
676+1764=2500
2440=2500
2440<2500
Answer:no
The triangle below is equilateral. Find the length of the side x to the nearest tenth.
To the nearest tenth, the length of each side of the equilateral triangle is roughly [tex]10(\sqrt{(3) - 1)[/tex].
What characteristics define equilateral?An equilateral triangle has the following three characteristics: identical lengths on all three sides. The three angles are identical. Three symmetry lines may be seen in the figure.
All of the triangle's sides are equal in length since it is equilateral. Call this length "s" for short.
The distance from vertex A to side x, measured in altitude, is equal to the length of side x. Call the intersection of the altitude and side x "P" for short.
The length of AP is [tex](s/2) * \sqrt{}[/tex] because we know that the altitude from vertex A creates a triangle with sides of 30-60-90. (3).
Since side BP is half the length of side AB, we also know that its length is (s/2).
As a result, x's length equals the product of AP and BP:
x = AP + BP
= (s/2) * [tex]\sqrt{(3) + (s/2)[/tex]
= [tex](s/2)(\sqrt{(3) + 1)[/tex]
We are told that x equals 10. We may put the formula we discovered for x equal to 10 and do the following calculation to find s:
[tex](s/2)(\sqrt{(3) + 1)[/tex] = 10
The result of multiplying both sides by two is:
[tex]s(\sqrt{(3) + 1) = 20[/tex]
When you divide both sides by [tex](\sqrt{(3) + 1)[/tex], you get:
[tex]s = 20/(\sqrt{3) + 1)[/tex]
The result of multiplying the numerator and denominator by the conjugate of [tex](\sqrt{(3) + 1), (\sqrt{(3) - 1)[/tex], is as follows:
s = [tex]20(\sqrt{3) - 1)/(3 - 1)[/tex]
= [tex]10(\sqrt{(3) - 1[/tex]
As a result, to the nearest tenth, the length of each side of the equilateral triangle is about [tex]10(\sqrt{(3) - 1[/tex].
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When we say that liquid water is unstable on Mars, we mean that
Therefore, liquid water is considered to be unstable on Mars due to the cold temperatures, low atmospheric pressure, and the UV radiation. All of these environmental factors make it difficult for liquid water to persist.
Liquid water is unstable on Mars due to its cold, dry environment. Because the atmospheric pressure is too low to hold liquid water, the water on Mars quickly evaporates, sublimates, and/or is broken down by the ultraviolet radiation in the atmosphere.
The average temperature of the surface of Mars is −63 °C, which is well below the freezing point of water. Because of this, liquid water cannot exist on the surface of Mars. When temperatures are slightly higher, water can exist as a liquid, but it cannot stay in this state for very long.
The atmosphere on Mars also does not contain enough pressure to sustain liquid water. Even when water vapor is present, it will quickly evaporate in the low-pressure environment. Additionally, the UV radiation in the Martian atmosphere will break down water molecules quickly.
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What is the relationship between the mean and median? a. the mean is approximately the same as the median. b. the mean is greater than the median. c. the mean is less than the median.
The relationship between the mean and median depends on the shape of the distribution of the data, therefore correct options are
(a) The mean is approximately the same as the median
(b) The mean is greater than the median
(c) The mean is less than the median.
The relationship between the mean and the median depends on the shape of the distribution of the data. In a symmetric distribution, the mean and median will be approximately the same. In a skewed distribution, the mean will be pulled in the direction of the skew, and the median will be a better representation of the "typical" value.
If the distribution is symmetrical (i.e., evenly distributed around the center), the mean and median will be approximately the same.
If the distribution is positively skewed (i.e., has a long tail on the right side), the mean will be greater than the median.
If the distribution is negatively skewed (i.e., has a long tail on the left side), the mean will be less than the median.
Therefore, correct options are
(a) The mean is approximately the same as the median
(b) The mean is greater than the median
(c) The mean is less than the median.
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i hate math fr but pls help asap
Answer:
379.94
Step-by-step explanation:
Area of a circle given radius is really easy! The equation for area of a cicle is pi x r^2. So just plug in. Assuming pi is 3.14 your equation would be
3.14x11^2. 11 squared is 121. Then multiply by 3.14 and thats your answer.
At a basketball game, a team made 53 successful shots. They were a combination of 1- and 2-point shots. The team scored 90 points in all. Write and solve a system of equations to find the number of each type of shot.
Answer: the team amassed 88i points total, by shooting t two-point baskets and u 1-point free throws.
t+u = 53
total is: 2t + u = 88.
Step-by-step explanation:
hope i makes sense
Find the areas of the figures whose vertices are
(a) (0,0), (3,7), (5,1)
(c) (-4,2), (0,-8), (5,11)
(e) (-2,-4), (3,1), (-1,5), (6,-3)
(b) (-1,-2), (-2,3), (4,-4)
(a) The area of the triangle is 16 square units.
(b) The area of the triangle is 54 square units.
(c) the area of the quadrilateral is 20 square units.
(d) The area of the triangle is 12.5 square units.
What is the area of the figures?(a) To find the area of the triangle with vertices (0,0), (3,7), and (5,1), we can use the formula:
A = 1/2 | x1(y2 - y3) + x2(y3 - y1) + x3(y1 - y2) |
Plugging in the values, we get:
A = 1/2 | 0(7 - 1) + 3(1 - 0) + 5(0 - 7) |
= 1/2 | 0 + 3 - 35 |
= 1/2 |-32|
= 16
(b) To find the area of the triangle with vertices (-4,2), (0,-8), and (5,11), we can again use the same formula:
A = 1/2 | x1(y2 - y3) + x2(y3 - y1) + x3(y1 - y2) |
Plugging in the values, we get:
A = 1/2 | (-4)(-8 - 11) + (0)(11 - 2) + (5)(2 - (-8)) |
= 1/2 | 108 |
= 54
(c) To find the area of the quadrilateral with vertices (-2,-4), (3,1), (-1,5), and (6,-3), we can divide it into two triangles and find the area of each triangle.
We can use the formula for the area of a triangle:
A = 1/2 | x1(y2 - y3) + x2(y3 - y1) + x3(y1 - y2) |
For the triangle with vertices (-2,-4), (3,1), and (-1,5), we get:
A1 = 1/2 | (-2)(1 - 5) + (3)(5 + 4) + (-1)(-4 - 1) |
= 1/2 | (-8 + 35 + 5) |
= 16
For the triangle with vertices (3,1), (-1,5), and (6,-3), we get:
A2 = 1/2 | (3)(5 + 3) + (-1)(-3 - 1) + (6)(1 - 5) |
= 1/2 | (24 + 4 - 20) |
= 4
Therefore, the area of the quadrilateral is:
A = A1 + A2
= 16 + 4
= 20 square units
(d) To find the area of the triangle with vertices (-1,-2), (-2,3), and (4,-4), we can use the same formula:
A = 1/2 | x1(y2 - y3) + x2(y3 - y1) + x3(y1 - y2) |
Plugging in the values, we get:
A = 1/2 | (-1)(3 + 4) + (-2)(-4 + 2) + (4)(-2 - 3) |
= 1/2 | (-7 - 4 - 14) |
= 12.5
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Write an equation that describes the function.
4. Input, x Output, Y
0 0
1 4
2 8
3 12
Answer:
Y = 4x
Step-by-step explanation:
In this equation, x represents the input value, and Y represents the output value. Coefficient 4 illustrates the rate of change or slope of the function, indicating that for every unit increase in x, the value of Y increases by four units. When x is 0, Y is also 0, consistent with the given data. Similarly, when x is 1, 2, and 3, Y is 4, 8, and 12, respectively, matching the provided output values.
if customer interarrival times are exponentially distributed with rate 6 customers per hour, then to simulate the minutes between customer arrives in excel, one would use: group of answer choices
To simulate the minutes between customer arrivals in Excel, one would use the Exponential distribution function in Excel.
This function is part of the Statistical functions category and can be found under the "Statistical" tab in Excel.
An exponential distribution is a probability distribution that describes the time between events in a Poisson process, where events occur continuously and independently at a constant average rate.
The Exponential distribution function in Excel takes two arguments: Lambda and x.
Lambda is the rate parameter, which describes the average number of events per unit of time.
In this case, the rate is 6 customers per hour, so Lambda would be equal to 6.
X is the time interval, and in this case, it would be the time between customer arrivals in minutes.
Therefore, to simulate the minutes between customer arrivals, one would use the following formula in Excel: =EXPON.DIST(x/60,1/6,TRUE)
The "x/60" part of the formula is used to convert the time interval from minutes to hours, as the rate is given in customers per hour.
The "1/6" part of the formula is used to set the Lambda value to 6.
The "TRUE" part of the formula is used to specify that we want the cumulative distribution function (CDF), which gives the probability that the time between events is less than or equal to x.
To simulate the minutes between customer arrivals in Excel, we would use the Exponential distribution function with Lambda = 6 and x being the time interval between customer arrivals in minutes.
The formula would be = EXPON.DIST(x/60,1/6,TRUE).
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10. Which graph shows the solution to the inequality <-6?
Find the surface area of the solid. Round your answer to the nearest tenth
if necessary.
Area of the solid composite shape with triangle and rectangle is =832cm².
Define area of composite shapes?The area of a composite shape can be determined by adding or subtracting its component pieces.
Hence, we can use two formulas:
Area of Composite Shape + Area of Composite Shape + Area of Basic Shape A (additive)
Basic Shape Area A, Basic Shape Area B, and Composite Shape Area (subtractive)
In the figure,
Dimensions of the triangle are height, h = 16cm and base, b = 12cm.
Area = 1/2 ×b ×h
= 1/2 × 16× 12
=96cm²
There are two triangles, so the total area = 96+ 96 = 192cm².
Now area of the rectangle = length × width
= 20 × 32
= 640cm².
Total area of the solid= 192 + 640 = 832cm².
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g calculate the labor force participation rate if you know that the adult working-age population is 320 million, 114 million of which are not in the labor force. what is the labor force participation rate? (round your answer to the nearest tenth.)
The labor force participation rate is 64.4%.
To calculate the labor force participation rate, we need to know the number of people who are either employed or actively seeking employment. We can calculate this as follows:
Labor force = adult working-age population - not in labor force
Labor force = 320 million - 114 million
Subtract the numbers
Labor force = 206 million
So the labor force participation rate is
Labor force participation rate = (labor force / adult working-age population) x 100%
Substitute the values in the equation
Labor force participation rate = (206 million / 320 million) x 100%
Labor force participation rate = 64.4%
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Question
Find the surface area of the prism
HELP
Answer: 56 in
Step-by-step explanation:
4x7x2=56
Answer:
56 in
Step-by-step explanation:
4*7*2
Layson, Jane
Mark has a key ring with 10 similar keys. There are 3 gym locker keys, 2 car keys, I door key, and 4 toolbox keys. If Mark selects one key without looking, what is the probability he
selects a car key or door key?
The probability that Mark selects a car key or door key from the key ring is 0.3 or 30%.
What is probability?
Probability is a measure of the likelihood or chance of an event occurring. It is a number between 0 and 1, where 0 represents an impossible event and 1 represents a certain event. Probability is calculated by dividing the number of favorable outcomes by the total number of possible outcomes. Probability theory provides a framework for understanding random events and the laws of chance, and it is an important tool for modeling and simulating complex systems.
Calculating the probability that he selects a car key or door key :
In this context, we are asked to find the probability of Mark selecting a car key or door key from the key ring. To calculate this probability, we need to first determine the total number of keys on the key ring and then count the number of car keys and door keys.
Total number of keys = 10
Number of car keys = 2
Number of door keys = 1
The probability of selecting a car key or door key can be found by adding the probability of selecting a car key to the probability of selecting a door key. Since there is only one door key and two car keys, the probability of selecting a car key is higher, and we can simplify the calculation by finding the probability of selecting a car key and then adding the probability of selecting a door key that hasn't already been selected.
Probability of selecting a car key = 2/10 = 0.2
Probability of selecting a door key = 1/9 (since one key has already been selected) = 0.1111...
Therefore, the probability of Mark selecting a car key or door key from the key ring is 0.2 + 0.1111... ≈ 0.3 or 30%.
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hello! please help with 4-6!
please, i appreciate it!
also, happy ramadan!
a camper attaches a rope from the top of her tent, feet above the ground, to give it more support. if she takes the rope to the ground feet from the middle of her tent, about how long is the rope from the ground to the tent?
4 feet.
The length of the rope from the ground to the top of the tent is 4 feet.
To calculate this, subtract the distance from the tent to the ground (2 feet) from the height of the tent (6 feet), and you will get the length of the rope (4 feet).
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ten percent of computer parts produced by a certain supplier are defective. what is the probability that a sample of 10 parts contains more than 3 defective ones?
The probability of a sample of 10 parts containing more than 3 defective ones is approximately 0.026.
We can use the binomial distribution to calculate the probability of getting more than 3 defective parts in a sample of 10 parts. Let X be the number of defective parts in the sample. Then X follows a binomial distribution with parameters n=10 and p=0.1, where n is the sample size and p is the probability of a part being defective.
We can calculate the probability of getting more than 3 defective parts is:
P(X > 3) = 1 - P(X ≤ 3) = 1 - [P(X=0) + P(X=1) + P(X=2) + P(X=3)]
Next, we can find that:
P(X > 3) = 0.026
Therefore, the probability of a sample of 10 parts containing more than 3 defective ones is approximately 0.026.
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