A 95% confidence interval for a certain population proportion was calculated to be between
0.731 and 0.84. Calculate the margin of error (by-hand)
Answers
This is the answer. Thank the difference then divide by 2
Related Questions
At the library, Herb spent hour looking for a book, 1 hour
reading, and į hour doing research on the computer. How many
hours did Herb spend at the library?
Answers
Answer:
3 hours obviously
Step-by-step explanation:
1 hour looking for a book, 1 hour reading it, and one hour doing research on the book = 3 hours
Using the markings below, determine which of the following is the measure of angle 2
Answers
Answer:
4. 132°Step-by-step explanation:
Both the triangles on the left and right are isosceles
The top angle of the triangle on the left:
180° - 2*69° = 42°The top angle of the triangle on the right:
90° - 42° = 48°This is the same angle as supplementary with angle 2:
∠2 = 180° - 48° = 132°Correct choice is 4
WILL MARK BRAINLYEST! 1567584+3121350393X59=
Answers
Answer:184161240771
Step-by-step explanation:
Calculator
Answer:
184,161,240,771
Step-by-step explanation:
have a nice day!
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Q4. The sum of three consecutive odd numbers is 51 Find the numbers: (2)
______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
Answers
Answer:
15,17,19
Step-by-step explanation:
Here's your solution
=> let the first number be x
=> then second and third number will be
(x + 2) and (x + 4)
=> now it's given that sum is 51
=> so, x + (x + 2) + (x + 4) = 51
=> 3x + 6 = 51
=> 3x = 51 - 6
=> 3x = 45
=> x = 45/3
=> x = 15
hence ,the following number are , 15,17,19
hope it helps
pls help me plsssssssssss
Answers
Answer:
Step-by-step explanation:
SOMEONE PLEASEEEE HELPPPP !!!!!!!!
Answers
FALSE ITS FALSE FALSE
Answer:
True
Step-by-step explanation:
In a triangle, all the angles must add up to 180. The angles in an equiangular triangle are all the same so you can just divide 180 by 3 to get one of the angles. This is equal to 60 degrees and since acute traingles have angles that are all less than 90 degrees, it is an acute triangle.
What is the coefficient of the term of degree 7 in the polynomial below? 2x^6 + 2 – 4x^2 + 5x^7 – 4x A. 2 B. 4 C. 6 D. 5
Answers
Answer:
C.6
Step-by-step explanation:
A concrete mixing tub contains 34 liters of water and 22 liters of sand. Starting at the same time, water is added to the tub at a rate of 5 liters per minute,
while sand is also added to the tub at a rate of 7 liters per minute.
Part A
In how many minutes will the tub contain equal amounts of water and sand?
2 minutes
6 minutes
12 minutes
24 minutes
Answers
Answer:
6 minutes
6
6 minutes
6 minutes
12 is what percentige of 48
Answers
Answer:
25%
Step-by-step explanation:
100% = 48
1% = 48 ÷ 100 = 0.48
12 ÷ 0.48 = 25%
Answer:
25%
Step-by-step explanation:
12/48 is simplified to 1/4 or .25 and to get a percent just move the decimal over to the right twice then you'll get 25%
Please help me!!
3. Determine whether or not AB is tangent to circle O. Show your work.
Answers
Answer:
not tangent
Step-by-step explanation:
two reasons, first
Triangle AOB is not a right triangle
line AB intersects the circle O at two points.
The line AB touching the circle at point B in the considered diagram is not tangent to the circle O.
What is Pythagoras Theorem?If ABC is a triangle with AC as the hypotenuse and angle B with 90 degrees then we have:
[tex]|AC|^2 = |AB|^2 + |BC|^2[/tex]
where |AB| = length of line segment AB. (AB and BC are rest of the two sides of that triangle ABC, AC being the hypotenuse).
How are radius and tangent to a circle related?There is a theorem in mathematics that:
If there is a circle O with tangent line L intersecting the circle at point A, then the radius OA is perpendicular to the line L.
So, if AB is a tangent, then ∠ABO = 90° and therefore satisfies Pythagoras theorem.
Assuming AB is tangent, then ABO is right angled we should get:
[tex]H^2 = P^2 + B^2\\30^2 = 16^2 + 12^2\\900 = 256 + 144\\900= 500[/tex]
This statement is false, and therefore, so as our assumption is false that AB is tangent to circle O. Thus, AB is not tangent to circle O.
(so it might be that even if AB looks like touching at one point the circle O, but AB might be intersecting the circle at two points, or not touching it at all)
Thus, the line AB touching the circle at point B in the considered diagram is not tangent to the circle O.
Learn more about tangent to a circle here:
https://brainly.com/question/7942024
Find the surface area.
6 ft
211
3 ft
Answers
Answer:
36 ft
Step-by-step explanation:
Choose the greatest-.03; .3; .291; or.34
Answers
Answer:
The greatest number would therefore be 291
Answer:
.34
Step-by-step explanation:
It's literally the biggest out of the four.
4 granola bars are shared equally between 8 people. What fraction of a granola bar does each
Does person receive?
Answers
What is the surface area?
5 mm
4 mm
5 mm
6 mm
7 mm
square millimeters
Answers
Answer:
136 square millimeters
Step-by-step explanation:
I've tried to get the answer for this 13 times now (not joking), plzzz help: write a formula that represents the number of people in the nth row (pre-calc problem, I only need the formula)
I will report if sent a link
Answers
Answer:
2820 seatsaₙ = 3n + 9Step-by-step explanation:
This is an AP with:
The first term a₁ = 12Common difference d = 3Number of terms n = 40Number of the seats:
Sₙ = 1/2*n(a₁ + aₙ) = 1/2n(2a₁ + (n - 1)d)S₄₀ = 1/2*40(12*2 + 39*3) = 2820 seatsFormula of nth term:
aₙ = a₁ + (n - 1)daₙ = 12 + (n - 1)*3 = 12 + 3n - 3 = 3n + 9aₙ = 3n + 9Determine if the 2 triangles are congruent.
A) AAS
B) Not enough information
C) SAS
D) HL
Answers
Most water treatment facilities monitor the quality of their drinking water on hourly basis. One variable monitored it is pH, which measures the degree of alkalinity or acidity in the water. A pH below 7.0 is acidic, one above 7.0 is alkaline, and a pH of 7.0 is neutral. One water treatment plant has a target pH of 8.5 (most try to maintain a slightly alkaline level). The mean and standard deviation of 1 hour's test results, based on 12 water samples at this plant are: Mean =8.24 S=.16 Does this sample provide sufficient evidence that the mean pH level in the water differs from 8.5?
Answers
Answer:
we can conclude that there is significant evidence to support the stance that mean pH value in water differs from 8.5
Step-by-step explanation:
H0 : μ = 8.5
H1 : μ < 8.5
Test statistic :
(xbar - μ) / s/sqrt(n)
(8.24 - 8.5) ÷ (0.16 ÷ √12)
-0.26 ÷ 0.0461880
Test statistic = - 5.63
The Pvalue can be obtained from the test statistic value using a Pvalue calculator :
df = 12 - 1 = 11
Pvalue = 0.000077
Using an α value of 0.05 ; we can conclude that
Pvalue < α ; We reject H0
Hence, we can conclude that there is significant evidence to support the stance that mean pH value in water differs from 8.5
Tickets to the movies cost $9.50 for adults and $6.50 for kids. A large group bought 12 tickets and spent a total of $87. How many kid's tickets did the group purchase?
Please include an equation.
Answers
Answer:
12 ticketsStep-by-step explanation:
please brainleist please tysm☺️☺️☺️☺️☺️
Answer:
9 kid's ticketsStep-by-step explanation:
Given
Kid's tickets = k, one ticket costs $6.5, total cost 6.5kAdult tickets = a, one ticket costs $9.5, total cost 9.5aEquations:
a + k = 129.5a + 6.5k = 87Substitute a into second equation a = 12 - k and solve for k:
9.5(12 - k) + 6.5k = 87114 - 9.5k + 6.5k = 873k = 114 - 873k = 27k = 9y is inversely proportional to √1+x when x = 8 and y = 2 find y when x = 15
Answers
Answer:
y = 3/2 when x = 15
Step-by-step explanation:
y = k / √1+x
2 = k / √1+8 = k/3
k = 6
y' = 6 / √1+15 = 6/4 = 3/2
A young sumo wrestler decided to go on a special high-protein diet to gain weight rapidly. He started at
90
9090 kilograms and gained weight at a constant rate. After
8
88 months, he weighed
138
138138 kilograms.
Let
W
WW represent the sumo wrestler's weight (in kilograms) after
t
tt months.
Complete the equation for the relationship between the weight and number of months.
W
=
W=W, equals
Answers
Answer:
W = 6t + 90
Step-by-step explanation:
Given :
Starting weight = intercept = 90 kg
Weight gained after 8 months = 138 kg
Using the slope intercept relation ;
We can obtain the rate of change, slope ;
y = mt + c
m = slope ; t = time after t months ; c = intercept
y = weight gained after 8 months
138 = 8m + 90
138 - 90 = 8m
48 = 8m
m = 48 / 8
m = 6
Hence, slope intercept equation equals :
W = 6t + 90
Jeans cost 4x-5
Gary has (10x + 7) dollars. If Gary decides to buy two pairs of jeans, what expression can be written to represent how much money Gary will have left over after the purchase?
Answers
Answer:
[tex]2 \: jeans = 2{(4x - 5)} \\ = 8x - 10 \\ balance = (10x + 7) - (8x - 10) \\ = (10 - 8)x + (7 + 10) \\ 2x + 17 \: dollars[/tex]
Task 4 Task 다. Given: m
Answers
Answer:
where the choices?
Step-by-step explanation:
I didnt answer the question but if it looks like i did i did by accident but still help me
Answers
Answer:
15% because it's 15 out of 100
What is the mean of 15, 16, 16, 18, 17
Answers
Answer:
16
Step-by-step explanation:
Answer:
16.4
Step-by-step explanation:
To find the mean of this set, add up the elements and divide the result by 5 (the number of elements):
15 + 16 + 16 + 18 + 17
------------------------------ = 82/5, or 16.4
5
In the data set below, what is the median
Answers
since it’s right at 5 & 7
3. To pay back a loan, Lauren makes 7 payments, each in the same amount. Her cousin Hilary made 5 payments, each in the same amount. Each of Hilary’s payments was $15 more than each payment Lauren made. Both cousins paid the same amount in the end. How much did each cousin pay each time?
(a) Write an equation. Let x represent the amount of one of Lauren’s payments.
(b) Solve the equation. Show your work.
(c) Check your solution. Show your work.
(d) State the solution in complete sentences.
Answers
Answer:
The answer is C
Step-by-step explanation:
7/20X5/5 equals? Any help
?
Answers
A house has a square room with an area of 125 ft2.
What is the length of the side of the square room to the nearest tenth?
Answers
Answer:
11.2 ftStep-by-step explanation:
doing map testing rn el o el
Humphrey needs to mail a package. He weighs it at home as 20.2 ounces. When he gets to the post office, the clerk weighs it at 18.6 ounces. What is the percent error in the weight of the package, assuming that his home weight is the correct weight?
Answers
Answer:
7.92%
Step-by-step explanation:
Given the following
Weight of package at home = 20.2 ounces.
Weight of the package at the office = 18.6ounces
Decrement = 20.2 - 18.6
percentage error = decrement/wt at home * 100
percentage error = 1.6/20.2* 100
percentage error = 160/20.2
percentage error = 7.92
HEnce the percent error in the weight of the package is 7.92%
Help plzz need the answer and that explanation plz don't send a file I need help with question 21!!
Answers
Answer:
No, they cannot be becuase the points are too different- no same numerical values.