Answer:
t(0,3) reflected on your axis is t(-0,3)
Order the sides from least to greatest
Sides: BC, AB, AC
Answer: BC, AC, AB
Step-by-step explanation: I think I'm wrong but tell me if I'm right.
is this right?.........
Answer:
yes you're right!
Step-by-step explanation:
-6 equals c because the quadratic formula is [tex]ax^2+bx+c=0[/tex].
to apply the formula, we would end up with [tex]\frac{-(-2)±\sqrt(-2)^2-4*3(-6)}{2(3)}[/tex] as our answer
once we simplify, we're left with [tex]x=\frac{2±2\sqrt{19}}{6}[/tex]
we break the equations into two to separate the positive sign's answer from the negative sign's answer, so we'll have [tex]x=\frac{2+2\sqrt{19} }{6}[/tex] and [tex]x=\frac{2-2\sqrt{19} }{6}[/tex]
isolate the variable to get our solution, [tex]x=\frac{1±\sqrt{19} }{3}[/tex]
a playground 98 ft long and 56 ft wide is to be resurfaced at a cost of $3.75 per sq ft what will the resurfacing cost?
Answer:L x b
98ft x 56ft =5488
=5488 / $3.75= $1463.47
Step-by-step explanation: Play ground is more like a rectangle so we use the formula for the rectrectangle to get total area . A=Lxb
Divide the total with the cost since it say each per sqr feet
A=lxb
98x56=5488
5488/3.75= 1463.47
in a causal study of the effect of shelf placement on sales of a brand of cereal, which is the dependent variable? group of answer choices where the cereal was placed on the shelf sales of the cereal concomitant variation of the cereal none of the above
A causal study is a study that seeks to determine whether one variable causes another variable.
The independent variable is the variable that is believed to cause the change in the dependent variable, while the dependent variable is the variable that is believed to be influenced by the independent variable.
In a causal study of the effect of shelf placement on sales of a brand of cereal, the independent variable is where the cereal was placed on the shelf. The dependent variable is sales of the cereal.
This is because the sales of the cereal are influenced by where it is placed on the shelf.The answer to the question is sales of the cereal.
To know more about independent variable click on below link:
https://brainly.com/question/1479694#
#SPJ11
what is the probability that the first question she gets right is question number 4? group of answer choices
The probability that the first question she gets right is question number 4, is 0.1054.
Number of options there are for a single query = 4
P(guessing correct answer for a single question) = 1/4
P(guessing correct answer for a single question) = 0.25
Probability of getting correct answer P(correct) = 0.25
Probability of getting wrong answer P(wrong) = 1 - Probability of getting correct answer
Probability of getting wrong answer P(wrong) = 1 - 0.25
Probability of getting wrong answer P(wrong) = 0.75
So, the probability that the first question she gets right is question number 4 = Probability of getting 1st question wrong × Probability of getting 2nd question wrong × Probability of getting 3rd question wrong × Probability of getting 4th question right
The probability that the first question she gets right is question number 4 = 0.75 × 0.75 × 0.75 × 0.25
The probability that the first question she gets right is question number 4 = 0.1055
To learn more about probability link is here
brainly.com/question/31120123
#SPJ4
The complete question is:
In a multiple choice exam, there are 5 questions and 4 choices for each question (a, b, c, d). Nancy has not studied for the exam at all and decides to randomly guess the answers. (Round your answers to four decimal places.)
What is the probability that the first question she gets right is question number 4?
I need some help pretty please
Answer:1 and 0
Step-by-step explanation:
If x=0 and y=0
?=0
if x=1 and y=1
?=1
if x=2 and y=2
?=1
if x=3 and y=3
?=1
if x=4 and y=4
?=1
if x=5 and y=5
?=1
which is an x-intercept of the graphed function?
The x-intercepts of the graphed function are:
(-2, 0), (-1, 0), (1, 0), and (2, 0)
How to identify the x-intercepts of the graphed function?For any function, we define the x-intercepts as the values of x such that y= 0, when we have a graph we can identify these values as the values of x at which the graph intercepts the x-axis.
Remember that the x-axis is the horizontal one, then, we can look at the graph and identifty the 4 x-intercepts, these are at the values of x:
x = -2
x = -1
x = 1
x = 2
Writting them in point notation, these are (-2, 0), (-1, 0), (1, 0), and (2, 0)
Learn more about x-intercepts at:
https://brainly.com/question/24363347
#SPJ1
You measure 41 randomly selected textbooks' weights, and find they have a mean weight of 39 ounces. Assume the population standard deviation is 2.8 ounces. Based on this, construct a 99% confidence interval for the true population mean textbook weight. Give your answers as decimals, to two places afe
The 99% confidence interval for the true population mean textbook weight is (38.11, 39.89) ounces.
We can find the standard error (SE) by using the formula:
SE = σ/√n
Where
σ = population standard deviation = 2.8 ounces
n = sample size = 41
SE = 2.8/√41
SE = 0.436
Now we can find the confidence interval by using the formula:
CI = x ± z*SE
Where
x = sample mean = 39 ounces
z* = the z-value corresponding to the level of confidence of 99 percent
The z-value corresponding to the level of confidence of 99 percent can be found using the z-table or calculator. It is found to be 2.576.
CI = 39 ± 2.576*0.436
CI = (38.11, 39.89)
Therefore, we can say that we are 99% confident that the true population mean textbook weight is between the interval (38.11, 39.89) ounces.
Learn more about confidence interval here: https://brainly.com/question/17097944
#SPJ11
a box contains 8 red balls and 8 blue balls, and 4 balls are taken at random without replacement. what is the probability that 2 red balls and 2 blue balls are taken?
The probability that 2 red balls and 2 blue balls are taken from the box is 3/7. This can be expressed mathematically as [tex](8C2 * 8C2) / (16C4) = 3/7[/tex].
To better understand this probability, let's look at an example. Say there are 8 red balls and 8 blue balls in the box. This can be represented as:
R = 8, B = 8
We want to determine the probability of taking 2 red balls and 2 blue balls out of the box. To do this, we need to calculate the total number of ways of selecting 4 balls from the box (16 balls in total) and then calculate the total number of ways of selecting 2 red and 2 blue balls out of the box.
The total number of ways of selecting 4 balls from the box can be expressed as (16C4). This is calculated by dividing the number of ways of selecting 4 balls out of 16 (16!) by the number of ways of arranging those 4 balls in any order (4!):
[tex](16C4) = 16! / 4! = 1820[/tex]
The total number of ways of selecting 2 red and 2 blue balls out of the box can be expressed as (8C2 * 8C2). This is calculated by multiplying the number of ways of selecting 2 red balls out of 8 (8C2) by the number of ways of selecting 2 blue balls out of 8 (8C2):
[tex](8C2 * 8C2) = 8C2 * 8C2 = 28[/tex]
The probability of taking 2 red balls and 2 blue balls out of the box is then the ratio of the number of ways of selecting 2 red and 2 blue balls out of the box (28) to the total number of ways of selecting 4 balls from the box (1820):
P(2 red balls, 2 blue balls) = 28 / 1820 = 3/7
In conclusion, the probability of taking 2 red balls and 2 blue balls out of a box containing 8 red balls and 8 blue balls is 3/7.
See more abut probability at: https://brainly.com/question/24756209
#SPJ11
an oil storage tank can be described as the volume generated by revolving the area bounded by about the x-axis. find the volume of the tank (in cubic meters). round to four decimal places.
The volume of the tank can be found using the given information as:[tex]Volume=\int\limits^b_a {\pi f(x)^2} \, dx[/tex]
How to find the volume of the tank?Assuming that the area bounded is given by a function f(x), the volume of the oil storage tank can be calculated using the formula for the volume of a solid of revolution:
[tex]Volume=\int\limits^b_a {\pi f(x)^2} \, dx[/tex]
where a and b are the limits of integration. In this case, the axis of revolution is the x-axis, so we are revolving the area about the x-axis.
Therefore, the volume of the tank can be found using the given information as:
[tex]Volume=\int\limits^b_a {\pi f(x)^2} \, dx[/tex]
We need more information about the function f(x) or a curve that bounds the area in order to find the limits of integration and calculate the volume.
To know more about Volume visit:
brainly.com/question/12237641
#SPJ1
there are 29 horses competing in a show. in how many ways can the blue, red, and yellow ribbons be awarded?
Answer:21924 different ways
Step-by-step explanation:
There are 29 choices for the blue ribbon, 28 for the red and 27 for the yellow. If you multiply 29x28x27 you get 21924
If there are 29 horses competing in the show. then there are 21,084 ways can the blue, red, and yellow ribbons be awarded.
Ribbons are awarded to horses. Therefore, we will use the multiplication rule of probability to find the total number of ways in which the blue, red, and yellow ribbons can be awarded.
Multiplication Rule of Probability If there are 'm' ways of doing one thing and 'n' ways of doing another thing, then there are 'm*n' ways of doing both things.
Multiplication Rule of Probability formula:
A total number of ways of doing both things = m*n
To find the total number of ways in which the blue, red, and yellow ribbons can be awarded to horses,
we need to multiply the number of ways of giving each ribbon.
Blue ribbons can be awarded to 29 horses.
Red ribbons can be awarded to 28 horses.
Yellow ribbons can be awarded to 27 horses.
The multiplication rule of the probability formula will be applied to get the total number of ways of awarding blue, red, and yellow ribbons to horses.
A total number of ways of awarding blue, red, and yellow ribbons = Number of ways of awarding blue ribbons × Number of ways of awarding red ribbons × Number of ways of awarding yellow ribbonsTotal number of ways of awarding blue, red, and yellow ribbons
= 29 × 28 × 27
The total number of ways of awarding blue, red, and yellow ribbons
= 21,084
Therefore, there are 21,084 ways in which the blue, red, and yellow ribbons can be awarded to horses.
Probability: In mathematics, the probability of an event is the extent to which it is likely to occur, measured by the ratio of the favorable cases to the whole number of cases possible.Permutation: In mathematics, a permutation of a set is an arrangement of its members into a particular sequence, or if the set is already ordered, a rearrangement of its elements.Learn more about horses are being awarded ribbons Probability at: https://brainly.com/question/28527510
#SPJ11
HELP FAST I DONT HAVE TIME ASAP
Answer:772
Step-by-step explanation:
SA=PH+2b
SA=(10+8+10+8)(17)+2(8x10)
SA=772
Answer:
Step-by-step explanatin
multiply all of them
what is the probability that a randomly selected senator is up for reelection in november 2014? (enter your probability as a fraction.)
However, if we assume that the election cycle follows the typical pattern, where one-third of the Senate is up for reelection, then the probability would be approximately 1/3 or 0.333 as a fraction.
The probability that a randomly selected senator is up for reelection in November 2014 depends on the specific year and election cycle in question. In general, the term length for a U.S. senator is six years, and approximately one-third of the Senate is up for reelection every two years.
Therefore, the probability that a randomly selected senator is up for reelection in November 2014 would depend on the number of senators whose terms expire in that election cycle. Without additional information, it is not possible to determine this probability.
Find out more about election cycle
brainly.com/question/15215322
#SPJ4
an emirp is an integer that, when its digits are written in reverse order, is a prime number. for example, $73$ is an emirp because $37$ is prime. what is the smallest two-digit prime number that is not an emirp?
The smallest two-digit prime number that is not an emirp is 11.
An emirp is a prime number that, when its digits are written in reverse order, becomes another prime number. In this way, 73 is an emirp because when its digits are reversed, we get 37, which is also a prime number.
To answer this question, we must examine each of the two-digit prime numbers and verify whether or not they are emirps.
Let's begin by listing all of the two-digit prime numbers:
11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67, 71, 73, 79, 83, 89, 97.
We must now test each of the above prime numbers to see whether they are emirps by reversing their digits and then testing if the new number is also prime.
We do not need to examine the primes in reverse order since, if a number is a two-digit prime, its reverse will also be a two-digit number.
Let's start by checking whether 11 is an emirp or not by reversing its digits.11 reversed becomes 11, which is the same number. Since 11 is a prime number, it is not an emirp.
Therefore, 11 is the smallest two-digit prime number that is not an emirp.
For similar question on prime number
https://brainly.com/question/1593928
#SPJ11
How can I write an eqvilent expression for 2(n+2)
The equivalent expression for 2(n+2) is 2n +4.
Equivalent expressions are expressions that have the same effect even though they look different. If two algebraic expressions are equivalent, then both expressions have the same value when we insert the same value for the variable.
Problems with equivalent expressions often have simple and complex expressions. Check which complex expression is equivalent to a simple expression:
(1) Divide any coefficient: a(bx±c) = abx± aca, open parenthesis, b, x, addition and subtraction, c, close parenthesis, equals , a , b, x, plus or minus, a, c.
(2) Combine all like terms on both sides of the equation: the x term and the constant.
(3) Arrange the terms in the same order, usually the term x precedes the constant.
(4) Two expressions are equivalent if all their terms are identical.
The given expression is : 2(n+2)
Multiplying the expression by 2 : 2n+4
Here, 2n + 4 is the equivalent expression.
Learn more about Equivalent:
https://brainly.com/question/14672772
#SPJ4
Write the equation of the line in standard form.
y = 3x + 10
X
x
X
X
A
B
C
D
3x + y = -10
3x + y = 10
3x - y = -10
3x - y = 10
The equation of the line y = 3x + 10 in standard form is 3x - y = -10.
What is the equation of line in standard form?Given the equation of line in the question:
y = 3x + 10
To write the equation of the line in standard form, we need to rearrange the equation so that the x and y terms are on the left side and the constant term is on the right side of the equation.
It is expressed as;
Ax + Bx = C
y = 3x + 10
Subtracting 3x from both sides, we get:
y - 3x = 3x - 3x + 10
y - 3x = 10
Reorder
-3x + y = 10
Multiply each term by -1
-3x(-1) + y(-1) = 10(-1)
3x - y = -10
Therefore, the equation in standard form is 3x - y = -10.
Learn more about equation of line here:https://brainly.com/question/28696396
#SPJ1
1: find the cartesian vector expression for the five forces, respectively. 2: find the cartesian vector expression of the resultant force of these five forces. 3: find the magnitude and direction of the resultant force. there are five forces act along edges of a pentagon plate abc, as shown. ab
The magnitude of the resultant force is given by:
|F| = [tex]sqrt((-7)^2 + 0^2) N|F| = 7 N[/tex]The direction of the resultant force is given by:
[tex]θ = tan^-1(0/-7)θ = tan^-1(0) = 0[/tex]
Therefore, the magnitude of the resultant force is 7 N, and its direction is along the negative x-axis.
1. Cartesian vector expression for five forcesThe five forces acting along the edges of a pentagon plate ABC are shown below:Force acting on AB = (6i + 6j) NForce acting on BC = (8i + 4j) NForce acting on CD = (-5i + 10j) NForce acting on DE = (-10i - 8j) NForce acting on EA = (4i - 12j) N2.
Cartesian vector expression of the resultant force of these five forcesThe resultant force acting on the pentagon plate ABC can be determined by finding the vector sum of the five forces. The cartesian vector expression of the resultant force can be found as follows:[tex]F = F1 + F2 + F3 + F4 + F5F = (6i + 6j) N + (8i + 4j) N + (-5i + 10j) N + (-10i - 8j) N + (4i - 12j) N= (-7i + 0j) N[/tex]
Therefore, the cartesian vector expression of the resultant force is (-7i + 0j) N.3. Magnitude and direction of the resultant forceThe magnitude and direction of the resultant force can be determined by using the cartesian vector expression of the resultant force obtained in the previous step.
for such more questions on Cartesian vector
https://brainly.com/question/29273438
#SPJ11
Select the statement that shows equivalent measurements.
5.2 meters = 0.52 centimeters
5.2 meters = 52 decameters
52 meters = 520 decimeters
5.2 meters = 5,200 kilometers
None of these options
Option A
Conversion of measurement of Metres to Centimetres can be done by multiplying the number by 100
1 metre = 100 centimetres
5.2 metres = 520 centimetres
Option B
Conversion of measurement of Metres to Decametres can be done by multiplying the number by 0.1
1 metre = 0.1 decametres
5.2 metres = 0.52 decametres
Option C
Conversion of measurement of Metres to Decimetres can be done by multiplying the number by 10
1 metre = 10 decimetres
5.2 metres = 52 decimetres
Option D
Conversion of measurement of Metres to Kilometres can be done by multiplying the number by 0.001
1 metre = 0.001 kilometres
5.2 metres = 0.0052 kilometres
Therefore,
5.2 metres = 520 centimetres
5.2 metres= 0.52 decametres
5.2 metres= 52 decimetres
5.2 metres= 0.0052 kilometres
To learn more about Measurements visit:
https://brainly.com/question/12652877
#SPJ1
Rewrite the expression 2(10+12) using the distributive property of multiplication over addition
The expression 2(10+12) can be rewritten as 44 using the distributive property of multiplication over addition.
The distributive property is a fundamental property of arithmetic that relates multiplication to addition and subtraction. The distributive property of multiplication over addition states that for any numbers a, b, and c
a( b + c ) = ab + ac
Using this property, we can rewrite the expression 2(10+12) as
2( 10 + 12 ) = 2(10) + 2(12)
Here, we have distributed the factor of 2 over the terms inside the parentheses, using the distributive property. This gives us:
2(10+12) = 20 + 24
Simplifying further, we get
2(10+12) = 44
Learn more about distributive property here
brainly.com/question/6276874
#SPJ4
n a survey given by camp counselors, campers were asked if they like to swim and if they like to have a cookout. The Venn diagram displays the campers’ preferences. A Venn Diagram titled Camp Preferences. One circle is labeled S, 0.06, the other circle is labeled C, 0.04, the shared area is labeled 0.89, and the outside area is labeled 0.01. A camper is selected at random. Let S be the event that the camper likes to swim and let C be the event that the camper likes to have a cookout. What is the probability that a randomly selected camper likes swimming or having a cookout, but not both?
Answer:
The probability that a randomly selected camper likes to have a cookout will be 0.93.
Step-by-step explanation:
did it already.
Answer: To solve this problem, we need to find the probability that a randomly selected camper likes swimming or having a cookout, but not both. We can do this by using the formula:
P(S or C, but not both) = P(S) + P(C) - 2P(S and C)
We are given the following probabilities from the Venn diagram:
P(S) = 0.06 (the proportion of the circle labeled S)
P(C) = 0.04 (the proportion of the circle labeled C)
P(S and C) = 0.89 (the proportion of the shared area)
Substituting these values into the formula, we get:
P(S or C, but not both) = 0.06 + 0.04 - 2(0.89)
= 0.10 - 1.78
= -1.68
This is not a valid probability, as probabilities cannot be negative. Therefore, there must be an error in the problem statement or the Venn diagram. Please check the values again and ensure they are correct.
Step-by-step explanation:
Given the triangles are similar in the image above, solve for x and y.
The values as per similarity of traingles is x=4 and y=10.
EquationSince ABC and DEF are similar triangles, their corresponding sides are proportional.
That is,
AB/DE = AC/EF = BC/DF
Substituting the given values, we get:
9/6 = 18/10 = (4x-1)/y
Simplifying this expression, we can solve for x and y:
9/6 = (4x-1)/y
Cross-multiplying, we get:
27y = 6(4x-1)
27y = 24x - 6
Substituting y = 10/3, we get:
(27)(10/3) = 24x - 6
90 = 24x - 6
96 = 24x
x = 4
Therefore, the value of x is 4.
9/6 = (4x-1)/y
Substituting x = 4, we get:
9/6 = (4(4)-1)/y
9/6 = 15/y
Cross-multiplying, we get:
9y = 90
y = 10
Therefore, the value of y is 10.
To know more about Similar Triangles, click here,
https://brainly.com/question/14366937
#SPJ1
Hey could y’all please help me with this question
The required cost of each shirt is $21.28.
What is Equation?A mathematical statement known as an equation is made up of two expressions joined together by the equal symbol. A formula would be 3x - 5 = 16, for instance. When this equation is solved, we discover that the value of the quantity x is 7.
According to question:The total cost of 3 identical shirts, including shipping, is $71.83. So we can write the equation as:
3s + 7.99 = 71.83
To solve for the cost of each shirt, we need to isolate the variable "s" on one side of the equation. We can start by subtracting 7.99 from both sides:
3s = 63.84
Then, we can divide both sides by 3:
s = 21.28
Therefore, the cost of each shirt is $21.28.
To know more about Equation visit:
brainly.com/question/28243079
#SPJ1
After how many weeks do you think it would be unreasonable to continue counting
individual mosquitoes? And finally, at the end of the 13-week mosquito season, how
many mosquitoes would you expect to be in the trap? Use complete sentences to
explain both of your answers below.
(Table if needed)
Week | Mosquitos
0 | 8
1 | 12
2 | 18
3 | 27
We can expect approximately 90 mosquitoes in the trap at the end of the 13-week mosquito season.
How to determine how many mosquitoes would you expect to be in the trapBased on the given data, we can observe that the number of mosquitoes is increasing over time, and the increase is not constant. So, it would be unreasonable to continue counting individual mosquitoes after a certain point.
To estimate the number of mosquitoes at the end of the 13-week mosquito season, we can assume that the rate of increase remains constant over time. Using this assumption, we can find the average increase in mosquitoes per week, which is the difference between the number of mosquitoes in the last week and the number in the first week, divided by the number of weeks:
Average increase = (27 - 8) / 3 = 6.33
Then, we can use this average increase to estimate the number of mosquitoes in the 13th week:
Number of mosquitoes in the 13th week = 27 + 6.33 × 10 = 90.3
Since we cannot have a fraction of a mosquito, we can round this estimate to the nearest whole number.
Therefore, we can expect approximately 90 mosquitoes in the trap at the end of the 13-week mosquito season.
Learn more about word problems at https://brainly.com/question/21405634
#SPJ1
say you randomly select americans until you find one who is married. how many americans would you expect to select in order to find your first married respondent? round to two decimal places.
On average, you would expect to select approximately 1.90
Americans in order to find your first married respondent. This is because according to the U.S. Census Bureau, the national marriage rate in 2018 was 6.9 per 1,000 individuals, which is equivalent to 0.69% of the population being married.
Therefore, if we assume the population of Americans is uniformly distributed, the probability of randomly selecting a married American is 0.69%. Consequently, the expected number of trials necessary to select a married respondent is 1/0.0069 = 1.90.
To calculate this, we used the probability formula for a single trial: P(X) = N/S, where P(X) is the probability of success, N is the number of successes, and S is the number of trials.
Therefore, by substituting the number of successes (1) and the probability of success (0.0069) into the formula, we can determine the expected number of trials necessary to select a married respondent (1/0.0069 = 1.90).
To know more about U.S. Census Bureau click on below link:
https://brainly.com/question/28341588#
#SPJ11
The measures of the angles of a triangle are shown in the figure below. Solve for x.
(6x-11)⁰
23°
PLS HURRY PLS !! :(
Answer:
x = 13°
Step-by-step explanation:
-> all angles of triangle add up to 180°
-> right angle = 90°
-> GIVEN: 90° and 23°
90° + 23° + (6x-11) = 180°
6x-11 = 67°
6x = 78°
[tex]\frac{6x}{6} =\frac{78}{6}[/tex]
x = 13°
What is the range of this data?
{3, 3, 0, 8, 7, 10, 2, 6, 12, 0}
Subtract the minimum data value from the maximum data value to find the data range. In this case, the data range is [tex]12-0=12[/tex].
[tex]\bold{12}[/tex]
For each pair of figures below, choose how they are related.
O Translation
O Reflection
• Rotation
• None of these
• Translation
• Reflection
• Rotation
None of these
O Translation
© Reflection
• Rotation
• None of these
• Translation
• Reflection
O Rotation
O None of these
The type of transformation that occurred in each object are:
1) Rotation
2) Translation
3) Reflection
4) Translation
How to Identify the object Transformation?There are different types of transformations of objects such as:
Translation: Translation is said to occur when we slide a figure in any direction.
Reflection: Reflection is said to occur when we flip a figure over a line.
Rotation: Rotation is said to occur when we rotate a figure a certain degree around a point.
Dilation: Dilation is said to occur when we enlarge or reduce a figure.
1) The given transformation is rotation because the original object was clearly rotated.
2) The given transformation is said to be translation because the object just changed position.
3) The transformation that occurred is said to be a reflection because it is a mirror image.
4) The given transformation is said to be translation because the object just changed position.
Read more about Transformation at: https://brainly.com/question/29715209
#SPJ1
complaints about an internet brokerage firm occur at a rate of 7 per day. the number of complaints appears to be poisson distributed. a. find the probability that the firm receives 5 or more complaints in a day. probability
The probability that company will receive five or more objections in a single day is [tex]0.9951[/tex].
What are the basics of probability?Probability is simply the possibility that something will happen. We may talk about the possibility with one result, or the probability of numerous outcomes, if we don't understand how such an occurrence will turn out. Statistical is the study of events that follow a probabilistic model.
Is math in probability difficult?Probability is typically considered as one of the most difficult mathematical concepts because probabilistic arguments can occasionally give results that seem inconsistent or nonsensical. The Monty Hill paradox and the anniversary problem are two examples.
Let [tex]X[/tex] be the random variable denoting the number of complaints received in a day. We need to find P(X ≥ 5).
Using the Poisson probability mass function,
P(X ≥ 5) = 1 - P(X < 5)
[tex]= 1 - P(X = 0) - P(X = 1) - P(X = 2) - P(X = 3) - P(X = 4)[/tex]
[tex]= 1 - e^{(-7)(1 + 7 + 24.5 + 57.33 + 100.18)}[/tex]
[tex]= 1 - 0.0049[/tex]
[tex]= 0.9951[/tex]
Therefore, the probability that the firm receives [tex]5[/tex] or more complaints in a day is [tex]0.9951[/tex].
To know more about probability visit:
https://brainly.com/question/11234923
#SPJ1
Find the area of the shaded region.
11 yd
22 yd
5 yd
The shaded region of the provided number is 214.5 yards, according to the given statement.
Rectangle: What does that mean?A rectangular shape is an illustration of a trapezoid with proportionate and matched opposite sides. It has four sides, four 90-degree borders, and is shaped like a rectangular. Any shape with only two sides is said to be rectangular.
Calculating Area by Subtracting Area from Two as well as More Regions: To determine the area for combined figures consisting of basic forms that overlap, deduct the area of the unshaded figure from the total area to obtain the area of the shaded region.
For illustration, let's calculate the size of the shaded section in the provided picture.
It is clear from the provided picture that a triangular and a rectangle have overlapped. We must deduct the triangular area from the size of the parallelogram in order to determine the area about the shaded figure. Area of the shaded figure =
Area of the rectangle −
Area of triangle
=l×b−12×b×h
=22×11−12×11×5
=214.5yd2
Hence, the area of the shaded figure is 214.5yd2
To know more about Rectangle visit:
https://brainly.com/question/2607596
#SPJ1
An automobile manufacturer of a certain model of car wants to estimate the mileage this model car gets in highway driving. The population standard deviation is known to be 5.7 mpg. How many cars does the manufacturer need to sample so that a 90% confidence interval for the mean mileage of all cars of this model will have a margin of error of 1.5
mpg?
Please show your work! I would really like to understand this :)
If an automobile manufacturer of a certain model of car wants to estimate the mileage this model car gets in highway driving. The manufacturer needs to sample at least 39 cars.
How to find the sample?We can use the formula for the margin of error in a confidence interval for a mean:
Margin of Error = z* (σ/√n)
Where:
z* is the critical value of the standard normal distribution for the desired level of confidence, which is 90% in this case.
σ is the known population standard deviation, which is 5.7 mpg.
n is the sample size we want to determine.
We want the margin of error to be 1.5 mpg, so we can set up the equation:
1.5 = 1.645 * (5.7 / √n)
where 1.645 is the z-score for 90% confidence level.
Simplifying this equation, we get:
√n = 1.645 * (5.7 / 1.5)
√n = 6.251
Squaring both sides, we get:
n = 39.07
Rounding up to the nearest integer, we get:
n = 39
Therefore, the manufacturer needs to sample at least 39 cars to estimate the highway mileage with a 90% confidence interval and a margin of error of 1.5 mpg.
Learn more about sample here:https://brainly.com/question/24466382
#SPJ1