About 71 % of the residents in a town say that they are making an effort to conserve water or electricity. 110 residents are randomly selected. The mean is 0.71. Standard Deviation is 0.043. The probability that the proportion of sampled residents who are making an effort to conserve water or electricity is greater than 80% is 0.0183.
1) Mean:
The mean of a proportion is simply the proportion itself, so the mean is 0.71.
2) Standard Deviation:
The standard deviation of a proportion is given by the formula:
σ = √(p(1-p)/n)
where p is the proportion, and n is the sample size. Plugging in the values given in the question:
σ = √(0.71(1-0.71)/110)
σ = 0.043
3) To find this probability, we need to use the normal distribution. We will use the z-score formula:
z = (x - μ) / σ
where x is the proportion we are interested in (0.8), μ is the mean (0.71), and σ is the standard deviation (0.043). Plugging in the values:
z = (0.8 - 0.71) / 0.043
z = 2.09
Using a z-table, we find that the probability of getting a z-score greater than 2.09 is 0.0183. So the probability that the proportion of sampled residents who are making an effort to conserve water or electricity is greater than 80% is 0.0183.
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11. Measurement Write and simplify an expression to represent the area of each figure.
a) X 2 x + 3 X-2
b) x+y x-y 3 2x + y
The answer of the question based on the to represent the area of the figure the answer is given below,
What is Rectangle?A rectangle is four-sided polygon with opposite sides that are parallel and congruent (equal) in the length.
a) The figure is a rectangle with a length of 2x + 3 and a width of x - 2. The area of the rectangle is:
Area = length x width
Area = (2x + 3)(x - 2)
Using the distributive property of multiplication, we can simplify this expression:
Area = 2x² - 4x + 3x - 6
Area = 2x² - x - 6
Therefore, the expression for the area of the figure is 2x² - x - 6.
The figure is a trapezoid with a height of 3 and two parallel sides of length x + y and x - y. average of lengths of the two sides are:
(x + y + x - y)/2 = 2x/2 = x
So, the area of the trapezoid is:
Area = (1/2) x height x (sum of parallel sides)
Area = (1/2)(x)(3)(x + y + x - y)/2
Area = (3/2) x²
Now, we need to subtract the area of the triangle from the trapezoid. The triangle has a height of 3 and a base of y, so its area is:
(1/2)(y)(3) = (3/2)y
Therefore, the expression for the area of the figure is:
Area = (3/2)x² - (3/2)y.
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Which operation can you apply to the ratio 1 to 2 to get the ratio 3 to 6?
Answer:
x3
Step-by-step explanation:
what is the answer of this -x+3y=20 7y=x
The answer of -x+3y=20; 7y=x will be x = -[tex]\frac{7}{2\\}[/tex] and y = - [tex]\frac{1}{2}[/tex].
Given,
-x+3y=20 .... (1)
7y=x .... (2)
By using the method of substitution.
We will use equation (2) as
7y=x
=>y= [tex]\frac{x}{7}[/tex] ....(3)
Putting equation (3) in (1)
We have, -x+3([tex]\frac{x}{7}[/tex])=20
Taking L.CM.
[tex]\frac{-7x+3x}{7}[/tex] = 20
-7x +3x = 140
-4x = 140
0r, x = - [tex]\frac{140}{4}[/tex]
x = - [tex]\frac{7}{2}[/tex]
Now by putting value of x in equation (2), we get
7y = x
7y = -[tex]\frac{7}{2}[/tex]
0r, y = -[tex]\frac{1}{2}[/tex]
Thus, x = -[tex]\frac{7}{2\\}[/tex] and y = - [tex]\frac{1}{2}[/tex]
Question 7 Find the quotient and remainder using (x^(5)-x^(4)+9x^(3)-9x^(2)+9x-12)/(x-1) The quotient is
The quotient and remainder using (x^(5)-x^(4)+9x^(3)-9x^(2)+9x-12)/(x-1) are 1x^(4)-2x^(3)+11x^(2)-20x+29 and -41, respectively.
To find the quotient and remainder using (x^(5)-x^(4)+9x^(3)-9x^(2)+9x-12)/(x-1), we will use synthetic division.
Write down the coefficients of the dividend polynomial in descending order of the exponent of x. In this case, the coefficients are 1, -1, 9, -9, 9, -12.
Write down the constant term of the divisor polynomial. In this case, the constant term is -1.
Bring down the first coefficient of the dividend polynomial.
Multiply the constant term of the divisor polynomial by the first coefficient of the dividend polynomial and write the result under the second coefficient of the dividend polynomial.
Add the second coefficient of the dividend polynomial and the result from step 4.
Repeat steps 4 and 5 until all the coefficients of the dividend polynomial have been used.
The last result from step 5 is the remainder. The other results are the coefficients of the quotient polynomial.
The synthetic division is shown below:
-1 | 1 -1 9 -9 9 -12
| -1 2 -11 20 -29
---------------------
1 -2 11 -20 29 -41
The quotient is 1x^(4)-2x^(3)+11x^(2)-20x+29 and the remainder is -41.
Therefore, the quotient and remainder using (x^(5)-x^(4)+9x^(3)-9x^(2)+9x-12)/(x-1) are 1x^(4)-2x^(3)+11x^(2)-20x+29 and -41, respectively.
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An online keyboarding course collects data comparing each students age to their typing speed. The equation of the line of best fit representing this data is y=-1.4x+117.8 , where x is the age (years) and y is the typing speed (words per minute). What is the expected typing speed of a student who is 17 years old?
Therefore, the expected typing speed of a student who is 17 years old is 94 words per minute.
What does speed feel like?It functions by dividing distance by speed. The time can also be calculated by dividing the distance traveled by the speed. You can determine the third input if you know the first two. For instance, we may get the speed as 120 x 2 = 60 miles per hour if a car travels 120 miles in two hours.
The equation of the line of best fit is:
y = -1.4x + 117.8
where x is the age in years and y is the typing speed in words per minute. To find the expected typing speed of a 17-year-old student, we can substitute x = 17 into the equation:
y = -1.4(17) + 117.8
y = -23.8 + 117.8
y = 94
Therefore, the expected typing speed of a student who is 17 years old is 94 words per minute.
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Jordan's football team gained 12 yards on their first play. On the second play, the team lost 8 yards. Which expression could be used to describe the total yards gained by Jordan's team?
The total yards gained by Jordan's team is 4.
What is Expression ?
Mathematical statements called expressions must contain a minimum of two terms with either numbers, variables, or both, joined by an operator. The four different types of mathematical operators are addition, subtraction, multiplication, and division. For instance, the expression x + y is an expression where x and y are terms with an addition operator between them. Mathematical expressions can be divided into two categories: algebraic expressions, which include both numbers and variables, and numerical expressions, which solely contain numbers.
On first day, Jordan's football team gained 12 yards.
On second day, Jordan's football team lost 8 yards.
So, The total yards(net) would be :
= total yards gained by team - total yards lost by team
= 12 - 8
= 4 yards.
Here, total yards gained by team is the first expression while total yards lost by team is the second expression.
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A window for a new house is shown. How many square feet of glass does the window require, if it is double-paned? Enter your answer in the box.
A kite with a height composed of 3.2 and 4 feet, and a width composed of 2 feet and 2 feet.
Hence, the amount of glass needed in square feet is 2 × 14.4 = 28.8 sq feet.
What purposes serves Square?A square in geometry is a two-dimensional plane figure with four equal sides and four equal but 90 degree angles. The characteristics of a rectangle and a square are somewhat comparable, but only the opposite sides of a rectangle are equal. So, only if all four of a rectangle's sides are the same length can it be said to be a square.
Only the window of a new house was advertised.
a kite with a height of 3.2 and 4 feet, a width of 2 feet, and a width of 2 feet.
Two panes make up the window.
To determine: How so many sq ft of glass is needed for the window,
Triangle area equals (1/2) base x height.
= (1/2) × 2 × 3.2 + (1/2) ×2 × 3.2 + (1/2) × 2 × 4 + (1/2) × 2 × 4
=2 × 3.2 + 2 × 4
= 2 × (3.2 + 4)
= 2 × 7.2
= 14.4 sq feet
Double-paned glass is a given.
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a class has 40 pupis. 15% of them wear spectacles. how many pupils in the class do not wear spectacles?
There are 34 pupils in the class who do not wear spectacles.
What is percentage?
Percentage is a way to express a number as a fraction of 100. It is commonly used to show the relationship between two numbers, to compare two quantities, or to express a part of a whole. It is expressed as a fraction, decimal, or ratio.
1. To find the number of pupils who wear spectacles, we can multiply the total number of pupils by the percentage of pupils who wear spectacles:
40 pupils x 15% = 6 pupils
2. To find the number of pupils who do not wear spectacles, we can subtract the number of pupils who wear spectacles from the total number of pupils:
40 pupils - 6 pupils = 34 pupils
Therefore, there are 34 pupils in the class who do not wear spectacles.
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3/4 of 3/5 i need some help quick
Answer:
Step-by-step explanation: First lets multiply the numerators, so 3*3 is 9, then we multiply the denominators, so 4*5 is 20. 9/20 or 0.45 will be your answer.
At Wild West amusement park, Aditya's favorite ride is the Blazing Bullet roller coaster. There are 10 cars
on the Blazing Bullet, and each car can hold the same number of people. A total of 40 people can ride on the
Blazing Bullet at one time.
Which equation do you think we can use to find the number of people n each car can hold?
The equation we can use to find the number of people each car can hold "10n = 40".
This equation represents the fact that there are 10 cars on the Blazing Bullet, each holding n people, and that the total number of people on the ride is 40.
By solving this equation for n, we can find the number of people each car can hold.
Here is how to solve the equation:
10n = 40
Divide both sides of the equation by 10:
10n/10 = 40/10
n = 4
Therefore, in conclusion, it is stated that each car can hold 4 people.
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Answer:
10n = 40
Step-by-step explanation:
1. Subtract 10 from both sides of the equation:
2. 10n/10 = 40/10
3. n = 4
As a result, it can be concluded that each car can accommodate 4 passengers.
Which equations are equivalent to Negative one-fourth (x) + three-fourths = 12 Select all that apply. (StartFraction negative 4 x over 1 EndFraction + three-fourths = 12 Negative 1 (StartFraction x over 4 EndFraction) + three-fourths = 12 StartFraction negative x + 3 over 4 EndFraction = 12 One-fourth (x + 3) = 12 (StartFraction negative x over 4 EndFraction + three-fourths = 12
Answer:
X = -2
Explanation
12 (x+3) = 12
which segments or segment are perpendicular?
thanks for helping
Answer: A. Segment CD only
Step-by-step explanation:
Perpendicular lines form 90 degree angles. The only segment that creates a 90 degree angle is CD. And we know this due to the little box that represents 90 degrees.
PLSSS HELP IF YOU TURLY KNOW THISSSS
Answer: 2
5x - 7 = 3x + 3
2x - 7 = 3
2 is the new value of the coefficent
Choose all that apply
The notation f(x) means
- f at x
-f times x
-the value of the function at the number x
- f or x
- f of x
-x evaluated at f
The notation f(x) means:
- the value of the function at the number x
- f of x
These two options are the correct ones. The notation f(x) typically refers to a mathematical function named "f" that takes an input value "x" and returns an output value. The function f maps the input value x to a unique output value f(x). The symbol "f" is often used to represent a generic function, and the variable inside the parentheses, "x", represents the argument or input value of the function.
For example, if we have the function f(x) = x + 2, then f(3) = 3 + 2 = 5. This means that when we input the number 3 into the function, the output is 5.
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Add or subtract the given expressions. (6.9a^(2)-2.3b^(2)+2ab)+(3.1a-2.5b^(2)+b)
To add or subtract the given expressions, we need to combine like terms. Like terms are terms that have the same variable and exponent.
Step 1: Combine like terms for a^(2):
6.9a^(2) + 0 = 6.9a^(2)
Step 2: Combine like terms for b^(2):
-2.3b^(2) + (-2.5b^(2)) = -4.8b^(2)
Step 3: Combine like terms for ab:
2ab + 0 = 2ab
Step 4: Combine like terms for a:
0 + 3.1a = 3.1a
Step 5: Combine like terms for b:
0 + b = b
Step 6: Put all the combined terms together:
6.9a^(2) + (-4.8b^(2)) + 2ab + 3.1a + b
Step 7: Simplify the expression:
6.9a^(2) - 4.8b^(2) + 2ab + 3.1a + b
So the final answer is 6.9a^(2) - 4.8b^(2) + 2ab + 3.1a + b.
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Which of the numbers below is less than -3.5? Select all that apply A)-4.2 B)-3.8 C)-9/2 D) -5/3 E)-1.5
Answer: A) -4.2, B) -3.8 C) -9/2 (-4.5)
Step-by-step explanation: Think of a number line, you have 0-10, and -10-0, as you keep going down the number like, the numbers become less and less, just like how -4.2 is less than -3.5, because it is further to the left of the number line, meaning it is less than. Hope this helps!
A right triangle has the dimensions below, I have the correct answer however I forgot the formula or how the calculator was able to figure out the answer
the Answer if your curious is 27m2
40 m³ is the volume of pyramid .
What is a pyramid defined as?
A three-dimensional shape is a pyramid. A pyramid's flat triangular faces and polygonal base all come together in a summit known as the apex. By fusing the bases together at the peak, a pyramid is created. The lateral face, a triangular feature formed by the connection of each base edge to the apex, is present.
L= 5
h = 4
s = 6
V = 6 * 4 * 5/3
= 120/3
= 40 m³
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What are the number in the number line and solve and graph?
A solution to the given compound inequality is m < 6 or m > 2.
What are the inequalities rules?In Mathematics, it is very important to note that you do not flip the inequality symbol (sign) when you are solving an inequality by multiplication or division with a positive numerical value (number).
In this context, we can logically deduce that you would flip the inequality symbol (sign) when you isolate the variable in an expression such as it's highlighted in the following steps:
4 - m < - 2
-m < -2 - 4
-m < -6
m < 6
For the second inequality, we have;
12 < -5m + 2
12 - 2 < -5m
10 < -5m
m > -10/5
m > 2.
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Big ideas 7.5 question
For the trapezoid given the value for x is obtained as 6.
What is a trapezoid?A polygon with only one set of parallel sides is called a trapezoid. The parallel bases of a trapezoid are another name for these parallel sides. Trapezoids have two additional sides that are not parallel and are referred to as their legs.
The value for parallel sides of a trapezoid is given as 3x + 2 and 2x - 2.
A line segment divides the trapezoid in half.
The line segment dividing the trapezoid in half measures 15 units.
We know that the line segment dividing the trapezoid in half is also the average of the parallel sides.
So we can set up an equation -
(3x + 2 + 2x - 2) / 2 = 15
Simplifying the left side, we get -
(5x) / 2 = 15
Multiplying both sides by 2/5, we get -
x = 6
Therefore, the value of x is 6.
We can check that this value works by plugging it into the expressions for the parallel sides -
3x + 2 = 20
2x - 2 = 10
So the lengths of the parallel sides are 20 and 10.
Therefore, the average of these is indeed 15, and so the line segment dividing the trapezoid in half has length 15, as given.
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4. Renee is going to buy a new car that has a list price of $19,675. She will be responsible for $1,420 in vehicle
registration fees, $85 in documentation fees, and 8.92% sales tax. She plans to trade in her current car, a 2002
Buick LeSabre in good condition, and finance the rest of the cost over four years at an interest rate of 11.34%,
compounded monthly. If the dealer gives Renee 85% of the listed trade-in value for her car, what will her monthly
payment be? Round all dollar values to the nearest cent.
Buick Cars in Good Condition
1909
2000
$1,000
$1,150
$2.282
$2.890
$1.794
$1,455
Model Year
Century
LeSabre
Regal
1998
3829
$2.075
$1,676
$1.291
$2.030
$1,520
2001
$1.488
$2.835
$2.214
$1.814
2002
$1,505
$3.374
$2.566
$1,950
a.
b.
$521.96
$508.80
O. $518.80
d. $504.46
Renee's monthly payment will be $504.46. The closest answer choice is d. $504.46.
How did we arrive at this value?To calculate Renee's monthly payment, we need to first determine the total cost of the new car after taxes and fees and subtract the trade-in value of her old car. Then, we can use the loan information to calculate the monthly payment.
Total cost of the new car:
List price: $19,675
Vehicle registration fees: $1,420
Documentation fees: $85
Sales tax: 8.92% of ($19,675 + $1,420 + $85) = $1,894.51
Total cost = $19,675 + $1,420 + $85 + $1,894.51 = $22,074.51
Trade-in value of the old car:
2002 Buick LeSabre in good condition: $3,374 (from the table)
85% of trade-in value: 0.85 x $3,374 = $2,867.90
Net cost of the new car:
$22,074.51 - $2,867.90 = $19,206.61
To calculate the monthly payment, we can use the formula for the present value of an annuity:
PV = PMT x (1 - (1 + r)^(-n)) / r
where PV is the present value of the loan, PMT is the monthly payment, r is the monthly interest rate (11.34%/12), and n is the number of payments (4 years x 12 months/year = 48).
Solving for PMT:
PMT = PV x r / (1 - (1 + r)^(-n))
PMT = $19,206.61 x 0.1134/12 / (1 - (1 + 0.1134/12)^(-48))
PMT = $504.46
Therefore, Renee's monthly payment will be $504.46. The closest answer choice is d. $504.46.
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5. Jabu's investment of R2 200 earned R528 in two years. a. Calculate the simple interest rate for this investment. b. If she decides to invest the total amount (original principal amount plus interest) for another two years at the same rate, what interest will she earn over the second two years. c. What is the difference in interest earned over the first two years, compared with interest earned over the second two years?
The payment (future value), to the nearest rand, which should be made at the end of the seventh year in order to liquidate the debt, is R9,338.80.
What is the future value determined?The future payment to be made at the end of the seventh year is determined by computing the future values in two stages. The first stage computes the future value before the payment at the end of the first year. The second stage computes the future value for six years.
here, we know,
The future value is computed by compounding the present value at an interest rate.
Current debt = R6,421,00
Compound interest rate = 11% per year
Compounding period = Quarterly
Future Value in 1 Year:
N (# of periods) = 4 quarters (1 year x 4)
I/Y (Interest per year) = 11%
PV (Present Value) = R6,421.00
PMT (Periodic Payment) = R0
Results:
Future Value (FV) = R7,156.98
Total Interest = R735.98
Future Value (FV) = R7,156.98
Payment in one year's time = R2,287.00
Balance = R4,869.98
Future Value at the end of the 7th Year:
N (# of periods) = 24 quarters (6 years x 4)
I/Y (Interest per year) = 11%
PV (Present Value) = R4,869.98
PMT (Periodic Payment) = R0
Results:
Future Value (FV) = R9,338.80
Total Interest = R4,468.82
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Eric worked in the neighborhood garden for 3 1-2 hours on Monday and for 4 1-4 hours on Wednesday. How many hours in all did eric work in the neighborhood garden
The total number of hours Eric worked is 7 3/4 hours.
What is addition in mathematics?
Addition is one of the four basic arithmetic operations in mathematics, along with subtraction, multiplication, and division. Addition is the process of combining two or more quantities or numbers to find their sum, or total. The symbol used to represent addition is the plus sign (+).
For example, if we want to find the sum of 3 and 4, we would write:
3 + 4 = 7
The number 3 and the number 4 are called addends, and the result of the addition operation is called the sum. Addition can involve whole numbers, fractions, decimals, and even negative numbers.
Addition has many applications in mathematics, science, and everyday life. It is used to calculate simple arithmetic problems, such as adding up the cost of items in a shopping cart, as well as more complex calculations, such as adding up the values in a data set or solving equations in algebra.
To find the total number of hours Eric worked in the neighborhood garden, we need to add the number of hours he worked on Monday and Wednesday.
Eric worked 3 1/2 hours on Monday, which can also be written as 7/2 hours.
Eric worked 4 1/4 hours on Wednesday, which can also be written as 17/4 hours.
To add these two amounts, we need to find a common denominator. The smallest number that both 2 and 4 divide into is 4. So we can convert 7/2 to 14/4 by multiplying the numerator and denominator by 2:
7/2 = 14/4
Now we can add the two fractions:
14/4 + 17/4 = 31/4
This is the total number of hours Eric worked in the neighborhood garden, in fraction form. To write it as a mixed number, we can divide the numerator by the denominator:
31 ÷ 4 = 7 with a remainder of 3
So the total number of hours Eric worked is 7 3/4 hours.
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Please help
Technology required. Function fis defined by f(x) = 3x + 5 and function g
is defined by g(x) = (1.1)x.
1. Complete the table with values of f(x) and g(x). When necessary, round to 2 decimal places.
2. Which function do you think grows faster? Explain your reasoning.
3. Use technology to create graphs representing fand g. What graphing window do you have to use to see the value of x where g becomes greater than f for that x?
The Complete value for the Table is
x f(x) g(x)
1 8 1.1
5 20 1.61051
10 35 2.5937
20 65 6.7274
The function f(x) grows with faster rate.
What is Function?A function is an expression, rule, or law in mathematics that describes a relationship between one variable (the independent variable) and another variable (the dependent variable).
Given:
We have f(x) = 3x+ 5 and g(x) = [tex](1.1)^x[/tex]
The Complete value for the Table is
x f(x) g(x)
1 3x+ 5 = 3(1) +5= 8 1.1
5 3x+ 5 = 3(5) +5= 20 [tex](1.1)^5[/tex]= 1.61051
10 3x+ 5 = 3(10) +5= 35 [tex](1.1)^{10}[/tex]= 2.5937
20 3x+ 5 = 3(20) +5= 65 [tex](1.1)^{20}[/tex]= 6.7274
So, the function f(x) grows with faster rate.
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An oil tank is being drained. the volume, V, in litres, of oil remaining in the tank after t minutes can be modeled by the function
V(t) = 0,5 (10 – t)^3
where 0 ≤ t ≤ 10.
a) how much oil is in the tank initially?
b) determine the average rate of change of volume in the first 1 minutes.
c) estimate the instantaneous rate of change of volume at 5 minutes. Do NOT use Calculus.
a) Initially, when t = 0, the volume of oil in the tank is given by:
V(0) = 0.5(10 - 0)^3
V(0) = 0.5(1000)
V(0) = 500
So, initially there are 500 litres of oil in the tank.
b) The average rate of change of volume in the first 1 minute is given by:
ΔV/Δt = (V(1) - V(0))/(1 - 0)
ΔV/Δt = (0.5(10 - 1)^3 - 500)/1
ΔV/Δt = (0.5(729) - 500)/1
ΔV/Δt = -285.5
So, the average rate of change of volume in the first 1 minute is -285.5 litres/minute.
c) To estimate the instantaneous rate of change of volume at 5 minutes, we can use the average rate of change over a small interval around 5 minutes. For example, we can use the average rate of change from 4.9 minutes to 5.1 minutes:
ΔV/Δt = (V(5.1) - V(4.9))/(5.1 - 4.9)
ΔV/Δt = (0.5(10 - 5.1)^3 - 0.5(10 - 4.9)^3)/0.2
ΔV/Δt = (-61.4455 - (-62.985))/0.2
ΔV/Δt = 7.6975
So, the estimated instantaneous rate of change of volume at 5 minutes is 7.6975 litres/minute.
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A consumer price analyst claims that prices for liquid crystal display (LCD) computer monitors have a mean of $ 170 and a standard deviation of $ 53.
1. What is the probability that a randomly selected LCD computer monitor costs less than $ 180? Assume here that the prices are normally distributed.
2. You randomly selected 9 LCD compute monitors. What is the probability that their mean cost is less than $ 180? Assume here that the prices are normally distributed
3. You randomly selected 36 LCD compute monitors. What is the probability that their mean cost is less than $ 180?
1. The probability of getting a z-score of 0.189 or less is 0.5753.
2. The probability of getting a z-score of 1.13 or less is 0.8708.
3. The probability of getting a z-score of 3.02 or less is 0.9982.
What is Normally distributed data:Normally distributed data refers to data that follows a normal distribution, also known as a Gaussian distribution or bell curve.
In a normal distribution, the data is symmetric around the mean and the majority of the data is clustered around the mean with decreasing density as the data moves further away from the mean.
Here we have
The mean price for liquid crystal display (LCD) computer monitors is $ 170 and the standard deviation is $ 53.
Find the z-score associated with $ 180 using the formula:
z = (x - μ) / σ
where x is the value we need to find the probability, μ is the mean, and σ is the standard deviation.
z = (180 - 170) / 53
z = 0.189
Hence, using a standard normal distribution table or calculator, we can find that the probability of getting a z-score of 0.189 or less is 0.5753.
To find the probability that the mean cost of 9 randomly selected LCD computer monitors is less than $ 180, find the standard deviation σ/√n.
The standard deviation of the sample means is σ/√n = $53/√9 = $17.67.
Now we need to find the z-score associated with $ 180 using the formula:
z = (x - μ) / σ/√n
where x is the sample mean, μ is the population mean, σ is the population standard deviation, and n is the sample size.
z = (180 - 170) / (53 / √9)
z = 1.13
Hence, using a standard normal distribution table or calculator, we can find that the probability of getting a z-score of 1.13 or less is 0.8708.
To find the probability that the mean cost of 36 randomly selected LCD computer monitors is less than $ 180, we can use the same formula as in part 2, with n = 36:
z = (x - μ) / σ/√n
z = (180 - 170) / (53 / √36)
z = 3.02
Hence, using a standard normal distribution table or calculator, we can find that the probability of getting a z-score of 3.02 or less is 0.9982.
Therefore,
1. The probability of getting a z-score of 0.189 or less is 0.5753.
2. The probability of getting a z-score of 1.13 or less is 0.8708.
3. The probability of getting a z-score of 3.02 or less is 0.9982.
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WHATS THE ANSWER PLS TELL ME
The linear equation in the given graph is.
y = 40x
How to write the linaer equation?We know that the general linear equation is:
y = a*x + b
Where a is the slope and b is the y-intercept, these two values are constants, and the variables are x and y.
First, notice that the line intercepts the y-axis at the point (0, 0), then b = 0.
So we can write:
y = a*x
Also notice that the line passes through the point (1, 40), then:
40 = a*1
40/1 = a
The linear equation is.
y = 40x
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RATIONAL EXPRESSIONS Writing equivalent rational expressions with monomial... Fill in the blank to make equivalent rational expressions. (3)/(x^(6))=(prod )/(5x^(9))
To make equivalent rational expressions, we need to multiply the numerator and denominator of the left-hand side of the equation by the same value.
In this case, we can multiply both the numerator and denominator by (5x^(3))/(5x^(3)) to get the equivalent expression on the right-hand side. (3)/(x^(6)) * (5x^(3))/(5x^(3)) = (15x^(3))/(5x^(9))
Therefore, the value that we need to fill in the blank is (15x^(3)). So the equivalent rational expression is:
(3)/(x^(6))=(15x^(3))/(5x^(9))
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The average number of gallons W of bottled water consumed each year by the consumer can be approximated by W=1.8d+17.48, where d is the number of 2000.
The average number of gallons of bottled water consumed in the year 2010 is 35.48 gallons.
The equation W=1.8d+17.48 can be used to find the average number of gallons of bottled water consumed each year by a consumer.
In this equation, W represents the average number of gallons of bottled water consumed, and d represents the number of years since 2000.
To find the average number of gallons of bottled water consumed in a specific year, you can plug in the value of d into the equation and solve for W.
For example, if you want to find the average number of gallons of bottled water consumed in the year 2010, you would plug in the value of d=10 (since 2010 is 10 years after 2000) into the equation:
W=1.8(10)+17.48
W=18+17.48
W=35.48
So, the average number of gallons of bottled water consumed in the year 2010 is 35.48 gallons.
Similarly, you can plug in different values of d into the equation to find the average number of gallons of bottled water consumed in different years.
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Find the missing side lengths. Leave your answers as radicals in simplest form.
The missing side lengths are computed below
How to determine the missing side lengthsTriangle 22
The side length x can be calculated using
sin(30) = 9/x
So, we have
x = 9/sin(30)
Evaluate
x = 18
For length y, we have
y = √(18² - 9²)
Evaluate
y = 9√3
Triangle 23
The side length y can be calculated using
sin(30) = y/√3
So, we have
y = √3 * sin(30)
Evaluate
y = 1/2√3
For length x, we have
x = √(√3² + (1/2√3)²)
Evaluate
x = √(15/4)
x = 1/2√15
Triangle 24
The side length y can be calculated using
cos(60) = y/2√3
So, we have
y = 2√3 * cos(60)
y = √3
For x, we have
x = √((2√3)² - (√3)²)
x = √9
x = 3
Triangle 25
The side length x can be calculated using
cos(60) = 5/x
So, we have
x = 5/cos(60)
x = 10
For y, we have
y = √(10² - 5²)
y = 5√3
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It is important to define or select similarity measures in data analysis. However, there is no commonly accepted subjective similarity measure. Results can vary depending on the similarity measures used. Nonetheless, seemingly different similarity measures may be equivalent after some transformation
This code use to measures may be equivalent after some transformation.
<!DOCTYPE html>
<html lang="en">
<head>
<title>Cat in night</title>
</head>
<body>
<div id="wrapper">
<section class="sky">
<div class="moon"></div>
<ul>
<li class="cloud"></li>
<li class="cloud"></li>
<li class="cloud"></li>
</ul>
</section>
<section class="wall">
<section class="cat">
<div class="cat-head">
<div class="eyes">
<div class="eye"></div>
<div class="eye"></div>
</div>
</div>
<div class="cat-body">
<div class="tail"></div>
</div>
</section>
</section>
</div>
<style>
.sky {
height: 300px;
background: radial-gradient(#112A71, #000A31);
overflow: hidden;
position: relative; }
.sky .moon {
width: 80px;
height: 80px;
border-radius: 50%;
background-color: #FEFF79;
-webkit-box-shadow: 0 0 150px #FEFF79, inset 0 1px 20px rgba(0, 0, 0, 0.3);
box-shadow: 0 0 150px #FEFF79, inset 0 1px 20px rgba(0, 0, 0, 0.3);
position: absolute;
top: 30px;
right: 100px; }
.sky .cloud {
width: 80px;
height: 30px;
background-color: #8D8D8D;
border-radius: 50px;
-webkit-box-shadow: inset 0 -1px 10px rgba(0, 0, 0, 0.3);
box-shadow: inset 0 -1px 10px rgba(0, 0, 0, 0.3);
position: relative;
top: 60px;
left: 30px;
-webkit-animation: shift 100s infinite linear;
animation: shift 100s infinite linear; }
.sky .cloud:nth-child(2) {
-webkit-transform: scale(-1.5, 1.3);
transform: scale(-1.5, 1.3);
top: 100px;
left: 250px;
-webkit-animation-duration: 40s;
animation-duration: 40s; }
.sky .cloud:last-child {
top: 150px;
left: 100px;
Transformation refers to a significant change or shift in an entity, be it a person, organization, system, or society, towards a desired state or outcome. It is a process of evolving, improving, or adapting in response to internal or external pressures or opportunities. Transformation involves a fundamental shift in the way things are done, the mindset, values, and behavior of the entity undergoing the change.
Transformation can occur in various contexts, such as business, technology, education, social and political systems, and personal development. It often requires a clear vision, strategic planning, and effective execution to achieve the desired outcome. The process can be challenging and requires significant effort and resources, but the benefits of transformation can be substantial, leading to increased efficiency, innovation, growth, and social impact.
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Complete Question: -
It is important to define or select similarity measures in data analysis. However, there is no commonly-accepted subjective similarity measure. Results can vary depending on the similarity measures used. Nonetheless, seemingly different similarity measures may be equivalent after some transformation. Suppose we have the following two-dimensional data set:
A1
A2
X1
1.5
1.7
X2
2
1.9
X3
1.6
1.8
X4
1.2
1.5
X5
1.5
1.0
Consider the data as two-dimensional data points. Given a new data point, x = (1.4, 1.6) as a query, rank the database points based on similarity with the query using Euclidean distance, Manhattan distance, supremum distance, and cosine similarity.