The probability that the sample proportion of the Republicans will differ from the population by more than 4% is 95.56%
How to get the required probabilityThe probability is calculated using z score, this is used to determine the amount of difference a sample, X is from the standard deviation
The z score is given by the formula
z = (X - μ) / σ
Definition of variables
population mean, μ = p = 50% = 0.5
sample size, n = 629
standard deviation, σ
= √{(p(1 - p)) / n}
= √{(0.50(1 - 0.50)) / 629}
= √{(0.50 * 0.50) / 629}
= 0.0199
Differ by more than 4% is differ by 50% + 4%
X = 50% + 4% = 54% = 0.54
The probability of more than 54% P = P(p > 54%) = P(p > 0.54)
P(p > 0.54) = 1 - P(p < 0.54)
Z score for z < 0.54
z = (X - μ) / σ
= (0.54 - 0.50) / 0.0199
= 2.01
p value for z < 2.01 = 0.0444
P(p > 0.54) = 1 - P(p < 0.54)
= 1 - 0.0444
= 0.9556
= 95.56%
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what is the range of data?
40
42
54
96
what is the median of the data?
64.5
72.5
74.5
75
what is the mode of the data?
5
70
75
88
The range, median and mode of the data-set are given as follows:
Range: 42.Median: 74.5.Mode: 75.How to obtain the features?Considering the stem-and-leaf plot, the data-set is given as follows:
54, 55, 60, 66, 69, 72, 73, 74, 75, 75, 81, 82, 88, 89, 95, 96.
The range of a data-set is calculated as the difference between the highest value and the lowest value in the data-set, thus:
96 - 54 = 52.
The data-set has an even cardinality of 16, hence the median is calculated as the mean of the two middle elements as follows:
Median = (74 + 75)/2
Median = 74.5.
The mode of a data-set is the observation that appears the most times in the data-set, hence it is of 75, which is the only observation that appears twice in the data-set.
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2. A(n) is NOT an example of an agreement. (1 point)
O lease
O month-to-month
O annual
O fine print
An Annual is not an example of an agreement.
Use point-slope form to write the equation of a line that passes through the point (8,−5) with slope -20/11 .
\((\stackrel{x_1}{8}~,~\stackrel{y_1}{-5})\qquad \qquad \stackrel{slope}{m}\implies - \cfrac{20}{11} \\\\\\ \begin{array}{|c|ll} \cline{1-1} \textit{point-slope form}\\ \cline{1-1} \\ y-y_1=m(x-x_1) \\\\ \cline{1-1} \end{array}\implies y-\stackrel{y_1}{(-5)}=\stackrel{m}{-\cfrac{20}{11}}(x-\stackrel{x_1}{8})\implies y+5=-\cfrac{20}{11}x+\cfrac{160}{11} \\\\\\ y=-\cfrac{20}{11}x+\cfrac{160}{11}-5\implies y=-\cfrac{20}{11}x+\cfrac{105}{11}\)
please help me answer this question with breakdown on how you got the answer.
Answer:
Anwer is 426.4.
Step-by-step explanation:
HOPE ITS HELP YOU.
Can someone please help me?
Answer:
A and C
Step-by-step explanation:
Normal distribution is characterized by a symmetrical mean and two tails (_/\_ like this but a bit more curvy)
Let A be the set of all lines in the plane. Define a relation R on A as follows. For every l1 and l2 in A, l1 R l2 ⇔ l1 is parallel to l2. (Assume that a line is parallel to itself). Which of the following is true for R?
A. R is reflexive.
B. R is symmetric.
C. R is transitive.
D. R is neither reflexive, symmetric, nor transitive.
Answer:
Hence, the relation R is a reflexive, symmetric and transitive relation.
Given :
A be the set of all lines in the plane and R is a relation on set A.
\(R=\{l_1,l_2\in A|l_1 \;\text{is parallel to}\; l_2\}\)
To find :
Which type of relation R on set A.
Explanation :
A relation R on a set A is called reflexive relation if every \(a\in A\) then \((a,a)\in R\).
So, the relation R is a reflexive relation because a line always parallels to itself.
A relation R on a set A is called Symmetric relation if \((a,b)\in R\) then \((b,a)\in R\) for all \(a,b\in A\).
So, the relation R is a symmetric relation because if a line \(l_1\) is parallel to the line \(l_2\) the always the line \(l_2\) is parallel to the line \(l_1\).
A relation R on a set A is called transitive relation if \((a,b)\in R\) and \((b,c)\in R\) then \((a,c)\in R\) for all \(a,b,c\in A\).
So, the relation R is a transitive relation because if a line \(l_1\) s parallel to the line \(l_2\) and the line \(l_2\) is parallel to the line \(l_3\) then the always line \(l_1\) is parallel to the line \(l_3\).
Therefore the relation R is a reflexive, symmetric and transitive relation.
A coordinate plane with 2 lines drawn. The first line is labeled f(x) and passes through the points (0, negative 2) and (1, 1). The second line is labeled g(x) and passes through the points (negative 4, 0) and (0, 2). The lines intersect at about (2.5, 3.2)
How does the slope of g(x) compare to the slope of f(x)?
The slope of g(x) is the opposite of the slope of f(x).
The slope of g(x) is less than the slope of f(x).
The slope of g(x) is greater than the slope of f(x).
The slope of g(x) is equal to the slope of f(x)
Therefore, the correct answer is: The slope of g(x) is less than the slope of f(x).
Where do the X and Y axes intersect on the coordinate plane, at position 0 0?The origin is the location where the two axes meet. On both the x- and y-axes, the origin is at 0. The coordinate plane is divided into four portions by the intersection of the x- and y-axes. The term "quadrant" refers to these four divisions.
We can use the slope formula to get the slopes of the lines f(x) and g(x):
slope of f(x) = (change in y)/(change in x) = (1 - (-2))/(1 - 0) = 3/1 = 3
slope of g(x) = (change in y)/(change in x) = (2 - 0)/(0 - (-4)) = 2/4 = 1/2
The slope of g(x) is 1/2, which is less than the slope of f(x), which is 3.
Therefore, the correct answer is: The slope of g(x) is less than the slope of f(x).
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if f(x)=
\( \sqrt{x} \)
and g(x)=x-9 then what is f(g(13))
Step-by-step explanation:
f(g(13)) = \(\sqrt{g(13)}\) =\(\sqrt{13-9}\)=\(\sqrt{4}\)=2
Please help thank uuuuu
Answer:
12
Step-by-step explanation:
You simply add the coefficients together.
3 + 4 + 5 = 12
sin65° - sin25º = √2.sin20⁰
Answer:
To solve this trigonometric equation, we can use the following trigonometric identity:
sin(a - b) = sin(a)cos(b) - cos(a)sin(b)
Applying this identity, we get:
sin(65° - 25°) = sin(65°)cos(25°) - cos(65°)sin(25°)
simplifying this expression, we get:
sin(40°) = (sin(65°) / 2) - (sin(25°) * √3 / 2)
Now, we can use another trigonometric identity:
sin(2a) = 2sin(a)cos(a)
to simplify the expression on the right side of the equation. We have:
sin(65°) = 2sin(32.5°)cos(32.5°)
and
sin(25°) = 2sin(12.5°)cos(12.5°)
Substituting these into our original equation, we get:
sin(40°) = (sin(32.5°)cos(32.5°) - sin(12.5°)cos(12.5°)) * √2
Using the same trigonometric identity, we can simplify the expression on the right side of the equation:
sin(32.5°)cos(32.5°) - sin(12.5°)cos(12.5°) = 1/2(sin(65° - 25°) - sin(65° + 25°))
= 1/2(sin(40°) - sin(90°))
= 1/2(sin(40°) - 1)
Substituting this back into our original equation, we get:
sin(40°) = 1/2(sin(40°) - 1) * √2
Multiplying both sides by 2/√2, we get:
2sin(40°) / √2 = sin(40°) - 1
Adding 1 to both sides, we get:
sin(40°) + 1 = 2sin(40°) / √2
Simplifying the right side of the equation, we get:
2sin(40°) / √2 = sin(40°) * √2
Substituting this back into our equation, we get:
sin(40°) + 1 = sin(40°) * √2
Subtracting sin(40°) from both sides, we get:
1 = sin(40°) * (√2 - 1)
Dividing both sides by (√2 - 1), we get:
sin(40°) = 1 / (√2 - 1)
Multiplying the numerator and denominator by (√2 + 1), we get:
sin(40°) = (√2 + 1) / 1
Therefore, sin65° - sin25º = √2.sin20⁰ is not correct, and the correct value of sin(65°) - sin(25°) is (√2 + 1) / 2.
Step-by-step explanation:
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From LHS
Sin65 - Sin25
*Using SinC - SinD formula*
= 2Cos[(65+25)/2]×Sin[(65-25)/2]
=2cos90/2 × sin40/2
=2cos45sin20
=2 × (1/square root 2) sin20
=square root 2 × sin20
=RHS ( look photo to be more clear)
a salesman earns 25% commission he sells amount to 2450 shillings after giving a buyers 2% discount . calculate his commission. Suppose all the goods were sold at marked price , what would be is earnings?
Answer:
Step-by-step explanation:
A) Commission = 2450 shillings * 25 % = 2450 shillings * (25/100) = 2450 shillings * (0.25) = 612.50 shillings
Commission = 612.50 shillings
B) If the total sale is 2,450.00 shillings, after the seller gives buyers a 2% discount. We must re-enter the discount:
2,450.00 shillings = X - X * 2% = X - 0.02 X --->
------> 0.98 X = 2,450.00 shillings
------>X= 2,450.00 / 0.98
------> X = 2,500.00 shillings
NEW COMMISSION = 2,500.00 shillings * 25 % = 2,500.00 shillings *(25/100) =2,500.00 shillings * (0.25) = 625 shillings
NEW COMMISSION = 625 shillings
A loan is being paid off by payments of 1,000, 2,000, ..., 10,000 at the end of years 1, 2, ..., 10.
The effective annual interest rate is 18%.
Determine the amount of interest in the 7th payment.
Therefore, the interest portion of the seventh payment is:7,000 x (1 + r + r2 + r3 + r4 + r5 + r6) / r7 - 7,000.
We have the following payments and their corresponding times of payment:At the end of year 1: $1,000At the end of year 2: $2,000At the end of year 3: $3,000At the end of year 4: $4,000At the end of year 5: $5,000At the end of year 6: $6,000At the end of year 7: $7,000
At the end of year 8: $8,000At the end of year 9: $9,000At the end of year 10: $10,000The present value of these payments is:PMT x [(1 - (1 + r)-n) / r]where PMT is the payment, r is the interest rate per year, and n is the number of years till payment.
For the first payment (end of year 1), the present value is:1,000 x [(1 - (1 + r)-1) / r]which equals
1,000 x (1 - 1 / (1 + r)) / r = 1,000 x ((1 + r - 1) / r) = 1,000
For the second payment (end of year 2), the present value is:2,000 x [(1 - (1 + r)-2) / r]which equals 2,000 x (1 - 1 / (1 + r)2) / r = 2,000 x ((1 + r - 1 / (1 + r)2) / r) = 2,000 x (1 + r) / r2
For the seventh payment (end of year 7), the present value is:
7,000 x [(1 - (1 + r)-7) / r]
which equals
7,000 x (1 - 1 / (1 + r)7) / r = 7,000 x ((1 + r - 1 / (1 + r)7) / r) = 7,000 x (1 + r + r2 + r3 + r4 + r5 + r6) / r7
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NEED HELP!! I"LL GIVE YOU BRAINLIEST!! Find the value of b. a = 3 and c =12
Answer: b = 11.62
Step-by-step explanation:
We can use this formula to solve for b:
\(b^{2} =\) \(\sqrt{c^{2}-a^{2} }\)
\(b^{2} =\) \(\sqrt{12^{2}-3^2 }\)
\(b^2= \sqrt{144-9}\)
= 11.61895004
We can round that to 11.62.
Hope this helped!
100 Points
What is the value of the logarithmic or exponential expression?
Select True or False for each statement
Answer:
True, False, False-------------------------------------------
Let's simplify left sides of each statement and compare with right sides:
\(3^{5log_32}=3^{log_32^5}=3^{log_332}=32 \implies True\)\(2 ln\ e^{1/4}=2*1/4*ln\ e^{}=2*1/4*1=1/2\implies False\)\(e^{2ln e-1}=e^{2*1-1}=e^{2-1}=e^1=e \implies False\)(-2) (4+6)+(-2) 6 / (-2) (4-1) simplified
The simplified form of the expression is \(-32\).
To simplify the expression, we can perform the calculations written below step by step:
\(\(\frac{{-2(4+6)+(-2)6}}{{-2(4-1)}}\)\)
We follow the order of operations (PEMDAS/BODMAS):
Step 1: Simplify within parentheses:
\(\(4+6 = 10\)\).
Step 2: Perform multiplications and divisions from left to right:
\(\(-2(10) = -20\) and \(-2(4-1) = -2(3) = -6\)\).
Step 3: Evaluate the remaining additions and subtractions:
\(\(-20 + (-2) \cdot 6 = -20 - 12 = -32\)\).
Therefore, the simplified form of the expression \(\(\frac{{-2(4+6)+(-2)6}}{{-2(4-1)}}\) is \(-32\).\)
When simplifying an expression, several factors need consideration. First, apply the order of operations correctly, respecting parentheses and exponents. Next, combine like terms by adding or subtracting them. Distribute and simplify within parentheses or brackets as needed. Pay attention to negative signs and ensure their proper placement.
Finally, review the simplified expression to ensure accuracy and validity within the given context.
Note: The complete question is:
\(\(\frac{{-2(4+6)+(-2)6}}{{-2(4-1)}}\)\), calculate the simplified form of this expression.
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calculate the mean of the following. 3,5,6,4,7,3,9,8
Step-by-step explanation:
mean = sum of observation/ no. of observation
mean = 3+5+6+4+7+3+9+8/ 8
mean = 45/8 = 5.6Answer:
3+5+6+4+7+3+9+8/8
45/8
5.625
To solve a(b + c) = d for a in 1 step:
Answer:
a = \(\frac{d}{b+c}\)
Step-by-step explanation:
a(b + c) = d
isolate a by dividing both sides by b + c
a = \(\frac{d}{b+c}\)
Consider the following story:
Three men walk into a hotel and ask to share a room. The cost is going to be $270 for
the night. Each man puts in a $100 bill and they get 3 $10 bills in change. The bell boy
carries their luggage and they each decide to be generous and tip the bell boy their change.
The front desk realizes they miss-charged the men, so the bell boy takes a $20 bill change to
the room. The men realize that you can’t split the $20 bill evenly 3 ways so they add it onto
the tip. The bell boy is happy but then thinks to himself: ”If the room is $270 and they had
this extra $20 that’s only $290, where did the other $10 go?”
Explain what is wrong with the Bell Boy’s thoughts, and what is the correct math here.
Answer:
Step-by-step explanation:
The bell boy added $270 and $20 incorrectly. The $20 bill was something that was returned due to overcharching. On the other hand, $270 was the amount that they paid for their room. This only means that $20 should be deducted from $270 and that's the amount that they paid for their room while $30 and $20 are the amount that the bell boy received as a tip
Total money of the three men: 3($100) = $300
They paid $270 for the room: $300 - $270 = $30
Tip for the bell boy: $30 - $30 = $0
Amount overcharged to them: $0 + $20 = $20
Tip to the bell boy: $20 - $20 = $0
They were left with no more money from the original $300.
What is the simplified form of 4 log3x + 6 log3y - 7 log3z?
The simplified form of 6 log₃x - 7 log₃y + 4 log₃z is log₃{(x⁶z⁴)/y⁷}.
What are exponents?The way of representing huge numbers in terms of powers is known as an exponent. Exponent, then, is the number of times a number has been multiplied by itself. For instance, the number 6 is multiplied by itself four times, yielding 6 6 6 6. You can write this as 64. In this case, the exponent is 4 and the base is 6.
The simplification of the provided logarithmic expression can be done as follows:-
6 log₃x - 7 log₃y + 4 log₃z,
= log₃x⁶ - log₃y⁷ + log₃z⁴ {Using the Power law}
= log₃x⁶ + log₃z⁴ - log₃y⁷
= log₃x⁶z⁴ - log₃y⁷ {Using the Product law}
= log₃{(x⁶z⁴)/y⁷} {Using the Quotient law}.
Hence, the simplified form of 6 log₃x - 7 log₃y + 4 log₃z is log₃{(x⁶z⁴)/y⁷}.
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Kim bought her Supreme shoes for $52 on eBay. She marks up the shoes to resell on GOAT for 120% of the
price.
a) What is the amount of markup? $
b) What is the price of the shoes after markup? $
Answer:
a) 10.40
b) 62.40
Step-by-step explanation:
im smart
BRAINLIEST!!- Find 0.25of 40
Answer: 25% of 40 or 0.25 of 40 is 10.
Step-by-step explanation:
Basically you have to divide 40 by 10 because 1/4 of 100 is 25. 25 is 1/4 of 100.
So knowing this 40/0.25 is equal to 10. This is why 0.25 of 40 is 10.
A shop employs one man and one woman as shop assistants. The man works for 10 hours per day and the woman for 8 hours per day, and their wages per hour are in the ratio 7:5. If the woman receives $24 per day, find the man's daily wage.
The man's daily wage is given as follows:
$42.
How to obtain the man's daily wage?The wages are obtained applying the proportions in the context of the problem.
The woman receives $24 for 8 hours of work, hence her hourly wage is given as follows:
24/8 = $3 per hour.
(Hourly wage = Total wages/total hours).
Their wages per hour are in the ratio 7:5, hence the man's hourly wage is obtained multiplying the woman's hourly wage by 7/5, hence:
7/5 x 3 = 21/5 = $4.2 per hour.
The man works 10 hours a day, hence the daily wage is given as follows, multiplying the hourly wage by 10:
10 x 4.2 = $42.
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What is the greatest common factor of the terms of the polynomial below? 8x^4 - 12x^3 + 20x^2
Answer: I think the greatest common factor is 4x^2
Step-by-step explanation:
Find the numerical common factors. Which are 8, -12, and 20. Find the variable common factors for x^4, x^3, and x^2. Multiply them together. Then break down the factors on both sides and pick the biggest one. Finally multiply them together. (I’m sorry, I’m very bad at explaining things.)
A pizzeria uses a 3-pound bag of cheese to make 8 pizzas. Use the given ratio to compute the number of pizzas the pizzeria can make with each number of pounds of cheese.
Using Proportion the table value is,
Cheese Number of Pizzas
3 pounds 8
18 pounds 48
22.5 pounds 60
27 pounds 72
What is a proportion?
A percentage is created when two ratios are equal to one another. We write proportions to construct equivalent ratios and to resolve unclear values. a comparison of two integers and their proportions. According to the law of proportion, two sets of given numbers are said to be directly proportional to one another if they grow or shrink in the same ratio.
We have,
3 pounds bag of cheese makes 8 pizzas.
This means,
3 pounds = 8 pizzas
1 pound = 8/3 pizzas
Now,
1 pound = 8/3 pizzas
Multiply 18 on both sides.
18 pounds = 18 x 8/3
18 pounds = 48 pizzas
1 pound = 8/3 pizzas
Multiply 22.5 on both sides.
22.5 pounds = 22.5 x 8/3
22.5 pounds = 60 pizzas
1 pound = 8/3 pizzas
Multiply 27 on both sides.
27 pounds = 27 x 8/3
27 pounds = 72 pizzas
Thus,
The number of Pizzas for 3 pounds is 8.
The number of Pizzas for 18 pounds is 48.
The number of Pizzas for 22.5 pounds is 60.
The number of Pizzas for 27 pounds is 71.
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Which example proves the following
statement is incorrect?
"The sum of two
primes is always
even."
Answer:
The prime number 2.
Step-by-step explanation:
Odd number + Odd number = Even number
An odd number plus another odd number equals an even number. And most prime numbers are odd, so you might think this is true. Is it?
Wrong. The prime number 2 is an even number and
Even number + Odd number = Odd number
Odd number + Even number = Odd number
So, there is a number that can make the sum of two prime numbers odd.
15÷6 write the remainders as a fraction
Answer:
2r3
Step-by-step explanation:
15÷6
6 can go into 15 two times without going over the number 15. 6 times 2 is 12. So 15-12 = 3 so 2r3 or 5/2 or 2.5 or 2 1/2
The area of a rectangle is 40 square inches. The rectangle is 8 inches long. How wide is the rectangle?
A. 3 inches
B. 32 inches
C. 5 inches
D. 13 inches
Answer:
C. 5 inches
Step-by-step explanation:
I’m area you have to multiply L • W
But since we don’t know the width we can divide the length by the area.
40/8 = 5
So the answer would be 5.
Another way to solve this problem is with using guess and check.
I hope it helps! Have a great day!
Anygays~
Answer:
C. 5 inches
Step-by-step explanation:
Use the numbers we have in the word problem, so you´d divide 40 by 8 since you´re trying to find the width. 40 is the area and 8 is the length so divide it tofind the width.
40/8 = 5
ANSWER: 5 inches
I hope it helps! Have a great day!
100 POINTS!!!!!!!!!!!!!!
If the diameter of Nicole's bike wheel is 90 cm, what is the approximate distance the wheel travels in one revolution?
Answer:
The distance traveled in one revolution is 282.6 cm.
Step-by-step explanation:
Diameter of wheel, d = 90 cm
The distance traveled by the wheel in one revolution is circumference.
The circumference of the wheel is
\(C = \pi\times d\\C =3.14\times 90\\C = 282.6cm\)
Three blocks are shown: Block A has mass 3 kilograms, length 8 centimeters, height 2 centimeters, and width 1 centimeters. Block B has mass 4 kilograms, length 1 centimeters, height 8 centimeters, and width 2 centimeters. Block C has mass 4 kilograms, length 8 centimeters, height 1 centimeters, and width 2 centimeters. Which statement is correct? (1 point) a Block A has the greatest density. b Block B has the least density. c The density of Block A is equal to the density of Block B. d The density of Block B is equal to the density of Block C.
Answer:
b & c
Step-by-step explanation:
using the data on this scatter plot
Answer:
\( - 8(45) + 482 = - 360 + 482 = 122\)