The number of meters of fence he would need is 45.72 meters
How to determine how many meters of fence would he need?The given parameters are
Length of backyard = 150 ft
As a general rule, we have the following conversion equation
1 foot = 0.3048 meters
So, we have
Length of backyard = 150 * 0.3048 meters
Evaluate the product
So, we have
Length of backyard = 45.72 meters
Hence, the number of meters of fence he would need is 45.72 meters
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How to use Pascal’s triangle to find x^2 using the difference quotient formula
Using Pascal's triangle and the difference quotient formula, we expand (x + h)^2 and simplify the expression to (2hx + h^2) / h. As h approaches 0, the term h becomes negligible, and we are left with 2x, which represents the derivative of x^2.
To use Pascal's triangle to find x^2 using the difference quotient formula, we can follow these steps:
1. Write the second row of Pascal's triangle: 1, 1.
2. Use the coefficients in the row as the binomial coefficients for (x + h)^2. In this case, we have (1x + 1h)^2.
3. Expand (x + h)^2 using the binomial theorem: x^2 + 2hx + h^2.
4. Apply the difference quotient formula: f(x + h) - f(x) / h.
5. Substitute the expanded expression into the formula: [(x + h)^2 - x^2] / h.
6. Simplify the numerator: (x^2 + 2hx + h^2 - x^2) / h.
7. Cancel out the x^2 terms in the numerator: (2hx + h^2) / h.
8. Divide both terms in the numerator by h: 2x + h.
9. As h approaches 0, the term h becomes negligible, and we are left with the derivative of x^2, which is 2x.
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What is the smallest positive integer $n$ such that $\sqrt[4]{56 \cdot n}$ is an integer?
The smallest positive integer n such that t \($\sqrt[4]{56 \cdot n}$\) is an integer is 686.
We have to find the smallest positive integer n such that \($\sqrt[4]{56 \cdot n}$\) is an integer
To find the smallest positive integer n such that \($\sqrt[4]{56 \cdot n}$\) is an integer, we need to determine the factors of 56 and find the smallest value of n that, when multiplied by 56, results in a perfect fourth power.
The prime factorization of 56 is:
56 = 2³ × 7
The prime factors of 56 need to be raised to multiples of 4.
Therefore, we need to determine the smallest value of n that includes additional factors of 2 and 7.
To make the expression a perfect fourth power, we need to raise 2 and 7 to the power of 4, which is 2⁴ × 7⁴
The smallest value of n that satisfies this condition is:
n = 2 × 7³ = 2× 343 = 686
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Mahad and Eren made 17 ounces of pizza dough. They used 5/8 of the dough to make a pizza and used the rest to make calzones.
What is the difference between the amount of dough they used to make pizza and the amount of dough they used to make calzones?
A) 6 3/8 ounces
B) 4 2/8 ounces
C) 10 5/8 ounces
D) 17 5/8 ounces
Explain how you know.
9514 1404 393
Answer:
B) 4 2/8 ounces
Step-by-step explanation:
After 5/8 of the dough was used for pizza, the remaining amount is ...
1 -5/8 = 3/8
The difference between the amounts is then ...
(5/8×17 oz) - (3/8×17 oz) = (5/8 -3/8)×17 oz = 2/8×17 oz = 34/8 oz
= 4 2/8 oz
the function has zeros at -1 and -11, and a minimum at -5
The minimum point on the graph is \((-6,25)\), which confirms that the function has a minimum at\(-6\).
What is graph?In mathematics, a graph is a diagram that shows the relationship between different sets of data. It is made up of points, which are also called vertices or nodes, that are connected by lines or curves called edges or arcs.
In mathematics, a function is a relation between two sets of data, such that each input in the first set corresponds to exactly one output in the second set. In other words, a function maps each input value to exactly one output value.
According to given information:
Let's start by writing the quadratic function in factored form, given that it has zeros at \(-1\) and \(-11\):
\(f(x) = a(x- (-1))(x- (-11))\)
Simplifying, we get:
\(f(x) = a(x+1)(x+11)\)
To find the value of a, we need to use the fact that the function has a minimum at \(-5\). Since the vertex of the parabola is at the minimum point, we know that the x-coordinate of the vertex is \(-5\). Therefore, we can use this information to find the value of a as follows:
\(-5 = (-1+(-11))/2\\-5 = -6\)
This tells us that the axis of symmetry of the parabola is \(x =-5\). Since we know that the function has zeros at \(-1\) and \(-11\), we can deduce that the vertex must lie halfway between these two zeros, at\(x = -6\). Therefore, the value of a is:
\(f(-6) = a((-6)+1)(-6) +11) = a(5) (-1) = -5a\)
We also know that the function has a minimum at this point, so we can use this to find the value of a:
\(f(-6) = -5\\-5= -5a\\\\a = 1\)
Therefore, the quadratic function that satisfies these conditions is:
\(f(x) = (x+1) (x+11)\)
We can check that this function has zeros at \(-1\) and \(-11\), and that it has a minimum at\(x =-6\) by finding its vertex:
x-coordinate of vertex = \((-1 +(-11))/2 =-6\)
y-coordinate of vertex =\(f(-6) = (-6+1)(-6+11) = 25\)
Therefore, the minimum point on the graph is \((-6,25)\), which confirms that the function has a minimum at -6.
Which of the following function has zeros at \(-1\) and\(-11\) and a minimum of \(-5\) ?
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A graph has points (3, 9), (4, 13.5), and (5, 18). Given the graph of a linear function, identify the steps used to find the initial value. Check all that apply. Find the rate of change using rise over run. Find corresponding y values when x = 6, x = 7, and x = 8. Then plot the points to finish the line. Find corresponding y values when x = 2, x = 1, and x = 0. Then plot the points to finish the line. The initial value corresponds to the y value when x = 1. The initial value corresponds to the y value when x = 0.
Answer:
its A, C, E on edg
Step-by-step explanation:
Answer:
a c e
Step-by-step explanation:
Calc question — related rates
The rate at which the depth of the liquid is increasing when the depth of the liquid reaches one-third of the height of the bowl is 1.25 cm s⁻¹.
How to determine rate?The volume of the liquid in the bowl is given by the following integral:
\(V = \int\limitsx_{0}^{h} \, \pi r^{2}(y) dy\)
where r = radius of the bowl and y = height of the liquid.
The radius of the bowl is equal to the distance from the curve y = (4/(8-x)) - 1 to the y-axis. This can be found using the following equation:
r = √{(4/(8-x)) - 1}² + 1²
The height of the liquid is equal to the distance from the curve y = (4/(8-x)) - 1 to the x-axis. This can be found using the following equation:
h = (4/(8-x)) - 1
Substituting these equations into the volume integral:
\(V = \int\limitsx_{0}^{h } \, \pi {\sqrt{(4/(8-x)) - 1)^{2} + 1^{2} (4/(8-x))} - 1 dy\)
Evaluate this integral using the following steps:
Expand the parentheses in the integrand.
Separate the integral into two parts, one for the integral of the square root term and one for the integral of the linear term.
Integrate each part separately.
The integral of the square root term can be evaluated using the following formula:
\(\int\limits^{b} _{a} \, dx \sqrt{x} dx = 2/3 (x^{3/2}) |^{b}_{a}\)
The integral of the linear term can be evaluated using the following formula:
\(\int\limits^{b} _{a} \, {x} dx = (x^{2/2}) |^{b}_{a}\)
Substituting these formulas into the integral:
V = π { 2/3 (4/(8-x))³ - 1/2 (4/(8-x))² } |_0^h
Evaluating this integral:
V = π { 16/27 (8-h)³ - 16/18 (8-h)² }
The rate of change of the volume of the liquid is given by:
dV/dt = π { 48/27 (8-h)² - 32/9 (8-h) }
The rate of change of the volume of the liquid is 7π cm³ s⁻¹. Also the depth of the liquid is one-third of the height of the bowl. This means that h = 2/3.
Substituting these values into the equation for dV/dt:
dV/dt = π { 48/27 (8-2/3)² - 32/9 (8-2/3) } = 7π
Solving this equation for the rate of change of the depth of the liquid:
dh/dt = 7/(48/27 (8 - 2/3)² - 32/9 (8 - 2/3)) = 1.25 cm s⁻¹
Therefore, the rate at which the depth of the liquid is increasing when the depth of the liquid reaches one-third of the height of the bowl is 1.25 cm s⁻¹.
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Graph the feasible region for the given system of inequalities
x+3y≤9
3x+y≤9
x≥0
y≥0
The feasible region is the area below the line x+3y=9, below the line 3x+y=9, and to the right of the y-axis and the bottom of the x-axis.
What are the steps to make the graph for the feasible region?
To graph the feasible region, we first graph the boundary lines of the inequalities.
To graph the line x + 3y = 9, we can first find its intercepts by setting x = 0 and y = 0:
When x = 0,
3y = 9, so y = 3
When y = 0, x = 9
So the line passes through the points (0, 3) and (9, 0).
To graph the line 3x + y = 9, we can again find its intercepts:
When x = 0, y = 9
When y = 0,
3x = 9, so x = 3
So the line passes through the points (0, 9) and (3, 0).
Now we can shade the region that satisfies all the inequalities, which is the region below the line x + 3y = 9, below the line 3x + y = 9, and to the right of the y-axis and the bottom of the x-axis (since x and y must both be greater than or equal to 0).
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Joanna needs a book to prop up a table leg. There are 8 Math books, 4 science books, and 5 history books. She
randomly selects a book, removing it from the shelf, and then selects another book. What is the probability that
Joanna selected two math books?
Answer:22% or 64/289
Step-by-step explanation: you take 8/17 which is math books over the total of books and multiply it together. simplify into a percent (if thats allowed)
8/17 x 8/17 = 64/289
7th grade work pls help!
Answer: 4
Step-by-step explanation: Daniels median is 16, and Sam’s median is 12. The difference eternal the two values is 4.
A pet store increases the price of a bag of dog food by 5%
If the increase in price is $2.00, what is the new price for dog food?
Answer:
$42.00
Step-by-step explanation:
We can represent the given information as a ratio:
% of original price : price
5% : $2.00
Then, we can multiply both sides of this ratio by 20 (or 100% / 5%) to get 100% of the original price, which IS the original price.
5% : $2.00
↓ × 20 ↓ × 20
100% : $40.00
Now that we know the original price, we can add $2.00 to get the new price.
$40.00 + $2.00 = $42.00
Which expression represents the same relationships shown on the graph? y = x - 6 y = x + 6 y = 6x y= - 6x
Choose the fraction that is NOT equivalent to 2/2?
A.1/1
B.2/1
C.3/3
D.4/4
Answer:
B 2/1
Step-by-step explanation:
2/2=1
3/3=1
4/4=1
and 2/1=2
Please help me !! I need help asap
In given fractions 8/9 is 1/36 large than 31/36
Comparing Fractions:Finding the larger and smallest fraction in between two or more fractions is known as comparing fractions.
We need to change fractions with unlike denominators into fractions with similar denominators in order to compare them. For this, we will find the denominators' Least Common Multiple (LCM).
If the denominators are the same then it is easy to compare the fractions.
Here we have
31/36 and 8/9
To find the largest fraction convert both denominators into the same
Here LCM(36, 9) = 36
Now multiply both numerator and denominators of fractions with a number to change the denominators
=> \(\frac{31}{36} \times \frac{1}{1} = \frac{31}{36}\)
=> \(\frac{8}{9} \times \frac{4}{4} = \frac{32}{36}\)
From the above calculations given fractions are 31/36 and 32/36
Difference = \(\frac{32}{36} - \frac{31}{36} = \frac{1}{36}\)
Therefore,
In given fractions 8/9 is 1/36 large than 31/36
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Please help i really need it, i will give brainliest to the right answers
Monique is taking part in a chili cooking contest. She has to buy enough supplies to make a very large batch of chili. The table shows the prices of some of the ingredients at the grocery store.
Answer:
1. 5
2. 1.29
3. 9.90
Step-by-step explanation:
They are buying 5 of each thing, so multiply it by 5.
The diced tomatoes cost $1.29.
When you solve the equation, you get 9.9. Convert that to money, and you have $9.90
47% as a fraction. Simplified. Answer cant be 47/100
The screenshot you sent us didn't not require it to be a fraction, so i will make it a decimal
47/100*70=
0.47*70=
4.7*7=
32.9
Answer:
32.9 = x
47% of 70 = 32.9/70
or, if rounded, = 33/70
Step-by-step explanation:
Two ways:
A. 47/100 = x/70
47 = 100x/70
3290 = 100x
32.9 = x
47% of 70 = 32.9
B. 70 * 47% = x
70 * .47 = x
32.9 = x
Higher Order Thinking Morgan read
a thermometer at 7:00 P.M. The
temperature was 16°C. This temperature
was 9°C less than the temperature at
2:00 P.M. The temperature at 2:00 P.M.
was 10°C higher than the temperature at
8:00 A.M. What was the temperature at
8:00 A.M.?
The temperature at 8:00 A.M. was 15°C.
Using the given information:
1. At 7:00 P.M., the temperature was 16°C.
2. This temperature was 9°C less than the temperature at 2:00 P.M.
We can use this information to find the temperature at 2:00 P.M.:
Temperature at 2:00 P.M. = 16°C (temperature at 7:00 P.M.) + 9°C
Temperature at 2:00 P.M. = 25°C
3. The temperature at 2:00 P.M. was 10°C higher than the temperature at 8:00 A.M.
Now, we can find the temperature at 8:00 A.M.:
Temperature at 8:00 A.M. = 25°C (temperature at 2:00 P.M.) - 10°C
Temperature at 8:00 A.M. = 15°C
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SOLVE
270.6 is 16 1/2% OF WHAT NUMBER?
WILL GIVE BRAINLIST
X
X
X
X
X
X
X
Answer:
165 po ang answer promise po
Answer:1640
To find the % then we have too times the 16 /12% by something right?
After some guessing their is my answer
Hope this helps :)
If you are reading this hope you have a wonderful day!
.
P(x) is a polynomial.
P(x) divided by (x + 7) has a remainder of 5.
• P(x) divided by (x + 3) has a remainder of —4.
• P(x) divided by (x– 3) has a remainder of 6.
P(x) divided by (x – 7) has a remainder of 9.
Find the following values of P(x).
P(-3) =
P(7) =
Answer:
P(7) = 9
P(-3) = -4
Step-by-step explanation:
P(x) divided by (x-7) leaves a remainder 9
P(7) = 9
Same way,P(-3) is the remainder when P(x) divided by (x + 3)
P(-3) = -4
Answer:
P(5)=3
P(8)=0
Step-by-step explanation:
ntries into T Accounts and Trial Balance
Connie Young, an architect, opened an office on October 1, 20Y4. During the month, she completed the following transactions connected with her professional practice:
Transferred cash from a personal bank account to an account to be used for the business, $66,600.
Paid October rent for office and workroom, $6,700.
Purchased used automobile for $43,000, paying $10,000 cash and giving a note payable for the remainder.
Purchased office and computer equipment on account, $13,300.
Paid cash for supplies, $3,200.
Paid cash for annual insurance policies, $4,500.
Received cash from client for plans delivered, $16,700.
Paid cash for miscellaneous expenses, $1,800.
Paid cash to creditors on account, $3,860.
Paid $530 on note payable.
Received invoice for blueprint service, due in November, $2,200.
Recorded fees earned on plans delivered, payment to be received in November, $11,500.
Paid salary of assistants, $3,500.
Paid gas, oil, and repairs on automobile for October, $870.
Required:
1. Record the above transactions (in chronological order) directly into the T accounts. To the left of the amount entered in the accounts, select the appropriate letter to identify the transaction.
2. Determine account balances of the T accounts. Accounts containing a single entry only (such as Prepaid Insurance) do not need a balance.
Cash
fill in the blank ee9b75febf99fe7_2
fill in the blank ee9b75febf99fe7_4
fill in the blank ee9b75febf99fe7_6
fill in the blank ee9b75febf99fe7_8
fill in the blank ee9b75febf99fe7_10
fill in the blank ee9b75febf99fe7_12
fill in the blank ee9b75febf99fe7_14
fill in the blank ee9b75febf99fe7_16
fill in the blank ee9b75febf99fe7_18
fill in the blank ee9b75febf99fe7_20
fill in the blank ee9b75febf99fe7_22
Bal. fill in the blank ee9b75febf99fe7_23
Accounts Receivable
fill in the blank ee9b75febf99fe7_25
Supplies
fill in the blank ee9b75febf99fe7_27
Prepaid Insurance
fill in the blank ee9b75febf99fe7_29
Automobiles
fill in the blank ee9b75febf99fe7_31
Equipment
fill in the blank ee9b75febf99fe7_33
Accounts Payable
fill in the blank ee9b75febf99fe7_35
fill in the blank ee9b75febf99fe7_37
fill in the blank ee9b75febf99fe7_39
Bal. fill in the blank ee9b75febf99fe7_40
Notes Payable
fill in the blank ee9b75febf99fe7_42
fill in the blank ee9b75febf99fe7_44
Bal. fill in the blank ee9b75febf99fe7_45
Connie Young, Capital
fill in the blank ee9b75febf99fe7_47
Professional Fees
fill in the blank ee9b75febf99fe7_49
fill in the blank ee9b75febf99fe7_51
Bal. fill in the blank ee9b75febf99fe7_52
Salary Expense
fill in the blank ee9b75febf99fe7_54
Blueprint Expense
fill in the blank ee9b75febf99fe7_56
Rent Expense
fill in the blank ee9b75febf99fe7_58
Automobile Expense
fill in the blank ee9b75febf99fe7_60
Miscellaneous Expense
fill in the blank ee9b75febf99fe7_62
3. Prepare an unadjusted trial balance for Connie Young, Architect, as of October 31, 20Y4. For those boxes in which no entry is required, leave the box blank.
Connie Young, Architect
Unadjusted Trial Balance
October 31, 20Y4
Debit
Balances Credit
Balances
fill in the blank a257bb028f83050_2
fill in the blank a257bb028f83050_3
fill in the blank a257bb028f83050_5
fill in the blank a257bb028f83050_6
fill in the blank a257bb028f83050_8
fill in the blank a257bb028f83050_9
fill in the blank a257bb028f83050_11
fill in the blank a257bb028f83050_12
fill in the blank a257bb028f83050_14
fill in the blank a257bb028f83050_15
fill in the blank a257bb028f83050_17
fill in the blank a257bb028f83050_18
fill in the blank a257bb028f83050_20
fill in the blank a257bb028f83050_21
fill in the blank a257bb028f83050_23
fill in the blank a257bb028f83050_24
fill in the blank a257bb028f83050_26
fill in the blank a257bb028f83050_27
fill in the blank a257bb028f83050_29
fill in the blank a257bb028f83050_30
fill in the blank a257bb028f83050_32
fill in the blank a257bb028f83050_33
fill in the blank a257bb028f83050_35
fill in the blank a257bb028f83050_36
fill in the blank a257bb028f83050_38
fill in the blank a257bb028f83050_39
fill in the blank a257bb028f83050_41
fill in the blank a257bb028f83050_42
fill in the blank a257bb028f83050_44
fill in the blank a257bb028f83050_45
fill in the blank a257bb028f83050_46
fill in the blank a257bb028f83050_47
4. Determine the net income or net loss for October.
$fill in the blank 9acd7e077000f8b_2
Ms. Lopez buys 12 packages of socks for her sons. Each package contains 5 pairs of socks. If she gives one son 32 pairs, how much does she give the other son?
Answer: 28 pairs
Step-by-step explanation:
12 times 5 is 60, so she has 60 pairs in total. She gives 32 pairs to one son, so 60-32 is 28. The other son receives 28 pairs of socks.
Find the area of the circle. Use 3.14 for it. Do not round your answer.
\(\large\texttt{Answer\::}\)
pls refer to the explanation !
\(\large\texttt{Calculations\::}\)
\(\textsf{Area of a circle : $A=\pi r^2$}\)
We're asked to use 3.14 for pi , so we'll do just that .
We have the diameter , so we divide it by 2 to find the radius (remember , the radius is 1/2 of the diameter).
Plug in :
A=3.14*(7)²
A=3.14*49
Multiply :
A=153.86 inches²
\(\footnotesize\texttt{hope\:helpful~}\)
Answer:
\(\boxed{\sf{153.86\ in^2}}\)Step-by-step explanation:
Given:
Use the area of the circle formula.
AREA OF THE CIRCLE FORMULA:
\(\Longrightarrow: \sf{A=\pi r^2}\)
\(\Longrightarrow: \sf{\pi =3.14}\)
\(\Longrightarrow: \sf{r=\dfrac{14}{2}=7}\)
\(\Longrightarrow: \sf{3.14*7^2}\)
Use the order of operations.
PEMDAS stands for:
ParenthesesExponentsMultiplyDivideAddSubtractBODMAS stands for:
Brackets OrderDivideMultiplyAddSubtract\(\sf{3.14*7^2}\)
First, solve exponents.
\(\Longrightarrow: \sf{7^2=7*7=49}\)
\(\Longrightarrow: \sf{3.14*49}\)
Then, multiply.
\(\sf{3.14*49=\boxed{\sf{153.86}}\)
Solutions:
\(\Longrightarrow: \boxed{\sf{153.86\ in^2}}\)
Therefore, the correct answer is 153.86 in².I hope this helps, let me know if you have any questions.
The surface area of the United States is 3.797 million square miles. The state of Alaska, our largest state in terms of area, occupies 655,400 square miles. Using ratios, determine what percentage of the surface area of the United States is occupied by Alaska, rounded to the nearest whole number.
Alaska occupies 17.22% of the surface area of the United States. Rounding to the nearest whole number, we get 17%. Hence, the answer is:17%
We are given that the surface area of the United States is 3.797 million square miles and the state of Alaska occupies 655,400 square miles. We need to determine what percentage of the surface area of the United States is occupied by Alaska using ratios.To find the percentage, we need to first find the ratio of Alaska's surface area to the surface area of the United States. We can do this by dividing the surface area of Alaska by the surface area of the United States. That is,655,400 / 3,797,000 = 0.1722We can express this ratio as a percentage by multiplying by 100. That is,0.1722 × 100 = 17.22%
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What is the area of the regular trapezoid below?
64 cn2,80cm2,240cm2,480cm2
Type the correct answer in the box.
Solve the given equation by completing the square.
Fill in the values of a, b, and c to complete the solutions.
the solutions to the equation have value of a=-4, b=1 and c=38.
define factorizationIn mathematics, factorization is the process of finding the factors of a given mathematical object, such as a number, polynomial, or matrix. Factors are objects that can be multiplied together to obtain the original object.
To solve the equation x² + 8x = 38 for x, we can use the following steps:
Move the constant term to the other side of the equation:
x² + 8x - 38 = 0
Using quadratic formula:x=(-b±√b²-4ac)/2a
x=(-8±√64-4×1×(-38))/2×1
x=-4+√38
or x=-4-√38
On comparing with x= a+ b √c
x= a- b √c
value of a=-4
b=1
c=38
Therefore, value of a=-4, b=1 and c=38.
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Which row of the table reveals the y-intercept of function ? X f(x) 2 -1 0 2 1 0 2 ch -6 3 -24
Answer:
2, -1
Step-by-step explanation: Got it right on Edge
The row of the table of the y-intercept of the function is f ( 2 ) = -6
What is a function rule?The function rule is the relationship between the input or domain and the output or range. A relation is a function if and only if there exists one value in the range for every domain value.
A function is a relation from a set of inputs to a set of possible outputs where each input is related to exactly one output.
Given data ,
Let the function be represented as A
Now , the value of A is
f ( -1 ) = 2^2/3
f ( 0 ) = 2
f ( 1 ) = 0
f ( 2 ) = -6
f ( 3 ) = -24
Hence , the function is f ( 2 ) = -6
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When 3010 adults were surveyed in a poll, 22% said that they use the Internet. Is it okay for a newspaper reporter to write that "1/4 of all adults use the
Interer? Why or why not? Identify the null hypothesis, alternative hypothesis, test statistic, P-value, conclusion about the null hypothesis, and final conclusion
that addresses the original claim. Use the P-value method. Use the normal distribution as an approximation of the binomial distribution
Identify the null and alternative hypotheses. Choose the correct answer below.
Hypotheses:
H₀: p = .25
Hₐ: p ≠ .25
Conditions:
Random sample NOT stated -- proceed with caution!Normality: 3010(.22) = 662.2 ≥ 10 and 3010(1 - .22) = 2347.8 ≥ 10 Independence: 3010(10) = 30100 < all adults (reasonable to assume)Test statistic:
\(\displaystyle z = \frac{.22-.25}{\sqrt{\frac{(.25)(.75)}{3010} } } \\ \\ \\ z = \frac{-.03}{.00789} \\ \\ \\ \boxed{z = -3.8011}\)
Conduct the two-tailed test to calculate the area corresponding to the positive and negative z-score.
The p-value for the lower tail is .00007205. Multiply this by two to get the area for both tails:p = .0001441Conclusion:
Since p = .0001441 < α = .05, we reject the null hypothesis. There is convincing statistical evidence that the true proportion of adults that use the internet is not equal to .25.
100 Points! Geometry question. Photo attached. Please show as much work as possible. Thank you!
Answer:
100°
Step-by-step explanation:
tThe sum of all arc measures that make up that circle is 360 degrees.
QS + RQ + RS = 360
QS = 360 - 120 - 140 = 100
An arc angle is the degree measurement of that angle inside the circle, opposite the arc
m∠R = arc QS = 100°
Answer:
∠ R = 50°
Step-by-step explanation:
the inscribed angle R is half the measure of its intercepted arc QS
the sum of the arcs on a circle is 360° , that is
RQ + QS + SR = 360°
120° + QS + 140° = 360°
QS + 260° = 360° ( subtract 260° from both sides )
QS = 100°
Then
∠ R = \(\frac{1}{2}\) × 100° = 50°
What is the area of a rectangle that is 5 meters long and 8 meters wide?
26 m2
35 m2
13 m2
40 m2
Answer:
D. 40 m²
Step-by-step explanation:
To find the area of a rectangle, simply multiply the length (5 meters) and the width (8 meters)
5×8=40
So, the area is 40 m²
When a constant force acts upon an object, the acceleration of the object varies inversely with its mass. When a certain constant force acts upon an object with mass 10 kg, the acceleration of the object is 4m/s^2 . If the same force acts upon another object whose mass is 8kg , what is this object's acceleration?
owing equations, determine whether y is a function of x . x+4y=8
Answer:
Step-by-step explanation:
To determine whether y is a function of x in the equation x+4y=8, we can solve for y in terms of x:
x + 4y = 8
4y = 8 - x
y = (8 - x)/4
Copy
Since every value of x corresponds to exactly one value of y, y is a function of x.
Solve me the question
The mean, mean deviation mode, median standard deviation, and coefficients of variation, CV, are as follows;
1. The mean deviation about the mean, median mode are;
2.653, 3.709, and 3.709, respectively
The coefficients of variation are;
0.364, 0.337, 0.337, respectively
The variance is about 9.462
The standard deviation is about 3.076
2. Section A has a higher relative dispersion than section B
3. City 2
4. a. Mean ≈ 43.85
b. Mode 40 - 54 inches
c. Median ≈ 45.16
The variance ≈ 125.8056
Standard deviation ≈ 11.216
Coefficient of variation ≈ 0.268
What is a coefficient of variation?The coefficient of variation of a data quantifies or is a measure of the variability of the values in the set of data.
The mean for the data can be calculated as follows;
Mean = (3×10 + 6×15 + 11×25 + 2×6 + 4×4 + 10×3 + 5×2 + 7×8 + 8×9 + 9×4)/(10+15+25+6+4+3+2+8+9+4) ≈ 7.29
The median is the 86/2 value = 43rd value
10 + 15 + 25 = 50
Therefore, the median is in the class with a frequency of 25, which is 11
The mode of the data, which is the value with the highest frequency in the data set is 11
The mean deviation from the mean is therefore;
(|3 - 7.29|×10 + |6 - 7.29|×15 + |11 - 7.29| ×25 + |2 - 7.29| ×6 + |4 - 7.29| ×4 + |10 - 7.29| ×3 + |5 - 7.29| ×2 + |7 - 7.29|×8 + |8 - 7.29| ×9 + |9 - 7.29| ×4)/(10+15+25+6+4+3+2+8+9+4) ≈ 2.653
The coefficient for the mean deviation about the mean is therefore; 2.653/7.29 ≈ 0.364
The mean deviation about the median is therefore;
(|3 - 11|×10 + |6 - 11|×15 + |11 - 11| ×25 + |2 - 11| ×6 + |4 - 11| ×4 + |10 - 11| ×3 + |5 - 11| ×2 + |7 - 11|×8 + |8 - 11| ×9 + |9 - 11| ×4)/(10+15+25+6+4+3+2+8+9+4)
The mean deviation about the median = 319/86 ≈ 3.709
The coefficient ≈ 3.709/11 ≈ 0.337
The median = The mean deviation about the mode ≈ 3.709
The coefficient is about 0.337
The variance = (10×(3 - 7.29)² + 15×(6 - 7.29)² + 25×(11 - 7.29)² + 6×(2 - 7.29)² + 4×(4 - 7.29)² + 3×(10 - 7.29)² + 2×(5 - 7.29)² + 8×(7 - 7.29)² + 9×(8 - 7.29)² + 4×(9 - 7.29)²)/(10+15+25+6+4+3+2+8+9+4) ≈ 9.462
The standard deviation, s ≈ √(9.462) ≈ 3.076
2. The coefficient of variation, CV, can be used to compare the variability of the datasets comprising of different scales as follows;
CV = Standard deviation/( The mean of the data)
Therefore; CV for section A = 23/79 ≈ 0.2911
CV for section B = 11/64 ≈ 0.172
The higher CV value for section A indicates that the scores of section A have a higher relative dispersion than the scores for the section B
3. The consistency values can be obtained by finding the standard deviation for the values in the data for each city, using a web based tool as follows;
City 1; Mean = 23
Variance = 50/4
Standard deviation, City 1 = (√(50))/2 = 5·√2/2
City 2; Mean = 21.8
Sample variance = 2.2
Standard deviation, City 2 = √(2.2) ≈ 1.483
City 3; Mean = 29.2
Sample variance = 18.7
Standard deviation, City 3 = √(18.7) ≈ 4.324
The standard deviation of city 2, which is the smallest compared tom the other cities, indicates that the City 2, has the most consistent temperature
4. The mean of the data obtained from the data using the midpoint of the data, is; Mean = ∑fx/∑f
Therefore; The mean obtained using an online tool is; 43.85
The mode is the data that occurs most frequently, which is the data with the value; 40 - 54 inches
The median is the value at the middle of the data set, which is the value with a frequency of 53, and in the interval 40 - 54 inches
The median is; 39.5 + (54.5 - 39.5) × (50 - 30)/53 ≈ 45.16
The standard deviation found for the grouped data, using an online tool is as follows;
Variance, σ² ≈125.8056
The standard deviation, σ ≈ √(125.8056) ≈ 11.216
The coefficient of variation is; 11.216/41.83 ≈ 0.268
Learn more on the standard deviation of a data set here: https://brainly.com/question/30414406
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