Answer:
3
Step-by-step explanation:
(six times a number) is (equal) to (the number increased by 15)
6x = x + 15
6x = x + 15
Subtract x from both sides
5x = 15
Divide both sides by 5
x = 3
What does area mean? When you are asked to find the
area what are you doing?
Answer:
you want to muliply the length and width to find area.
Step-by-step explanation:
Dr. Nunez wants to estimate the average lung capacity of adults in her state. She plans on taking a sample
of n adults to construct a 99% confidence interval for the mean lung capacity. She wants the margin of
error to be no more than 100 mL. She's willing to use o = 300 mL as an estimate for the population
standard deviation.
Which of these is the smallest approximate sample size required to obtain the desired margin of error?
Choose 1 answer:
35 adults
B
45 adults
50 adults
55 adults
Answer:60
Step-by-step explanation:
did the khan
The solution is :
0.8152 ≤ p ≤ 0.8608
579 sample size is needed to be 95% confident that the error in estimating the true value of p is less than 0.03.
What is the confidence interval?A confidence interval is a range of values, derived from a sample of data, that is likely to contain an unknown population parameter with a certain level of confidence.
here, we have,
Given the following :
Samples size n = 1000
Deaths within 10 years, p = 838
α = 95%
Construction a two way confidence interval:
p ± Zα/2 * √p(1-p) / n
point estimate p = 838/n = 838/1000 = 0.838
Z0.05/2 = Z0.025 = 1.96
0.838 - 1.96√0.838(1-0.838) / 1000
0.838 - 1.96*0.0116514 = 0.8152
0.838 + 1.96√0.838(1-0.838) / 1000
0.838 + 1.96*0.0116514 = 0.8608
0.8152 ≤ p ≤ 0.8608
b) Using the point estimate of p obtained from the preliminary sample, what sample size is needed to be 95% confident that the error in estimating the true value of p is less than 0.03
Error (E) = 0.03
To find the samome size, use the relation:
n = (Zα/2 / E)² * p(1-p)
n = (1.96/0.03)² * 0.838(1-0.838)
n = (1.96/0.03)² * 0.838 * 0.162
n = 4268.4444 * 0.838 * 0.162
n = 579.46
n = 579
Hence, The solution is :
0.8152 ≤ p ≤ 0.8608
579 sample size is needed to be 95% confident that the error in estimating the true value of p is less than 0.03.
To learn more about the confidence interval, visit:
brainly.com/question/17097944
#SPJ2
complete question:
Of 1000 randomly selected cases of lung cancer, 838 resulted in death within 10 years. Construct a 95% two-sided confidence interval on the death rate from lung cancer. (a) Construct a 95% two-sided confidence interval on the death rate from lung cancer. Round your answers to 3 decimal places. (b) Using the point estimate of p obtained from the preliminary sample, what sample size is needed to be 95% confident that the error in estimating the true value of p is less than 0.03
Answer all of the questions below in order to determine the volume of the rectangular
prism.
9
5
4
You have 90.43 in your bank account and you make a deposite. Your account will:
Answer:
be adding more money
Step-by-step explanation:
deposit means to add withdraw means to take out
Answer:
increase
Step-by-step explanation:
Hi I need help with dis answer
Answer:
the second answer
juzt find the scale factors of the two numbers given (120 and 96).
Step-by-step explanation:
Round 21.253 to the nearest hundred.
I don't know if you meant to say hundredth but in this case you said hundred and I can't just make assumptions.
The answer is
- - - - -
0
Like literally, I am not stealing your points but you said to the nearest hundred. So in this case, it'd be 0.
Simplify to a single power of 2
Answer:
2^7
Explanation:
You can add up the square of two and the square of five. This is the easiest way.
There were 5 players in a game. -2 players scored 40 points each -2 players scored 50 points each -1 player scored 90 points What was the mean number of points scored by the 5 players in the game? A. 36 B. 50 C. 54 D. 60.
Answer:
C
Step-by-step explanation:
Equation
Mean = Total / 5
Total
Total = 2 * 40 + 2 * 50 + 90
Total = 80 + 100 + 90
Total = 270
Answer
Mean = Total / 5
Mean = 270 / 5
Mean = 54
Which graph below has an EULER PATH?
Answer:I think it is a
Step-by-step explanation:
Answer:
Graph a) is a Euler Path
Odd at D and F
Step-by-step explanation:
A graph has an Euler circuit if and only if the degree of every vertex is even.
A graph has an Euler path if and only if there are at most two vertices with odd degree.
a) Odd at D and F - Euler Path
b) No odds - Euler Circuit
c) Odd at A, C, E, F
d) Odd at A, B, C, D
Select Parameter or Statistic to classify each statement.
1.) 85% of those surveyed were in favor of bike lanes.
Parameter or Statistic
2.) Each member of the soccer team has an average of 2 jerseys.
Parameter or Statistic
3.) Of the 100 swim teams surveyed across America, 23 practice 10 hours a week.
Parameter or Statistic
4.) The golf team's average score is 79.
Parameter or Statistic
Answer:
1) Statistic
2) Parameter
3) Statistic
4) Parameter.
Step-by-step explanation:
Parameter: is a number that describes the whole population.
Statistic: is a number that describes a sample.
The difference is:
50% of the cats are nice (parameter, because talks about all the cats)
out of 100 cats surveyed, 39 are nice (statistic, because talks about a sample of 100 cats)
Then:
1) 85% of those surveyed were in favor of bike lanes.
This only refers to the surveyed people, so this only refers to a sample (and not the population that this sample represents) then this is a statistic statement.
2) Each member of the soccer team has an average of 2 jerseys.
In this case, we are talking about the whole population (the soccer team) then this is a parameter
3) Of the 100 swim teams surveyed across America, 23 practice 10 hours a week.
Here the information is about the sample (only 100 swim teams). So here the correct option is statistic.
4) The golf team's average score is 79
Here the information is about the average score for the entire golf team, so this information is about all the population in the golf team, then in this case the correct option is parameter.
Answer:
Statistic
Parameter
Statistic
Parameter
Step-by-step explanation:
i took the test :)
ILL MAKE BRAINLY??!!!?!!!!!
Answer:
Mizuki here to answer! B is the correct answer!
Step-by-step explanation:
1 - 0.4 = 0.6
2.1 x 0.6 = 1.26
whats 9+10 if u get it right I give u brainliest |100 Points|
Answer:
[tex]9 + 10 = 19[/tex]
hope it helps
Answer: 21
Explanation: For the meme
QUESTION 4 of 10: Your largest customer makes a purchase and pays $5,500 on account and $6,600 cash. How much was the purchase?
0000
a) $5,500
b) $6,600
c) $12,100
d) $11,100
Answer:
The answer is C
Step-by-step explanation:
1. In a scaled diagram, 1 centimeter represents 50
meters. How many centimeters represent 15
meters?
A. 0.03 cm
B. 0.3 cm
C. 1.3 cm
D. 3.3 cm
ILL MARK BRAINLIEST IF CORRECT
Answer: A
Step-by-step explanation:
Answer:
1cm=50m
1/2 of 1cm = 1/2of 50m
therefore 50m/15m=1cm÷(50/15)
Can’t really put it in typeing form so just look at the picture ö
Answer:
5 cups is greater then 32 fl oz
Step-by-step explanation:
First, we change fl oz to cups, for it is easier to do.
Next, when we change 32 fl oz, it is going to be
32 fl oz=4 cups
Last, it is obvious that 5 cups is greater than 32 fl oz.
32 fl oz< 5 cups
This is correct!
Please mark me brainliest and have a nice day! :)
Find -21 increased by 12
Answer:
9
Step-by-step explanation:
Which golfer had the lowest number of strokes per hole?
5/7 ÷ 2/3=?
Is it A?
Is it B?
Is it C?
Or is it D?
Answer:
[tex]C.[/tex] 5/7 × 2/3
Step-by-step explanation:
no links I can use structure to evaluate expressions with more than one term.
A.
strongly agree
B.
agree
C.
disagree
D.
strongly disagree
I wish I could help but I don't know
……………………………………!.!.!.!!..!!.!.!.!.!!.!.!.
What is the perimeter of a figure with side lengths of 12 inches, 11 inches, 8 inches, 9 inches, 4 inches, and 2
Two sides of a triangle have measures 3 ft. and 6 ft. Also, these sides form a vertex whose angle measures 60 degrees. Calculate the missing attributes of the triangle. Statements: x² + 3² = 6², where x is the 3rd side of the triangle. x² = 3² +6² + 2⋅3⋅6⋅cos 60°, where x is the 3rd side of the triangle. x² = 3² + 6² − 2⋅3⋅6⋅cos60°, where x is the 3rd side of the triangle. (sin 60°)/3 = (sinθ)/6, where θ is an unknown angle.
Answer:
c² = 3² +6² - 2⋅3⋅6⋅cos 60
c = 27ft
Step-by-step explanation:
Since the angle is located in between the sides of the sides, we will use the cosine rule to get the unknown sides
Let c be the missing sides
According to the cosine rule;
c² = a²+ b² - 2abcosC
c² = 3² +6² - 2⋅3⋅6⋅cos 60
c² = 9 + 36 - 36cos60
c² = 45 - 36cos60
c² = 45 - 36(0.5)
c² = 45 - 18
c² = 27ft
Hence the missing attribute is 27ft and the required expression is c² = 3² +6² - 2⋅3⋅6⋅cos 60
Daniel is very extraverted.He admits that he is not comfortable unless surrounded by other people,and he energetically pursues activities that require the company of others.His cousin Bill,about the same age,is very introverted.Bill is self-reflective and prefers more solitary pursuits.Regardless of their personality characteristics,which of the following is likely to contribute most to their long-term happiness?
A) They are good friends who are willing to help each other in difficult times.
B) They bought a lottery ticket together and were lucky enough to win a huge jackpot.
C) They both have jobs that require very little effort.
D) They both have very few responsibilities and are careful to avoid committing themselves to any community service.
Answer:
A is the most likely answer
Step-by-step explanation:
but how is this a math question?
Use limits to find the area of the shaded region in the graph y = x2.
a.
7 units²
c.
4 units²
b.
9 units²
d.
6 units ²
Answer:
B. 9 Units squared
Step-by-step explanation:
Edge 2021
a circle has a radius of 11cm find the area of a sector woth central angle that measures 225 degrees
Answer:
237.46 cm squared
Step-by-step explanation:
look at the image for explanation
and more for whoever can answer this plus brainliest
Answer:
1 3/35
Step-by-step explanation:
4/5 +2/7
To solve this you need to find the common denominator.
Basically, you want to find a number that both 5 and 7 multiply into.
In this case, it is 35.
So we wanna make both fraction's denominators (the bottom numbers) into 35.
The only way we can do this is by multiplying the left fraction 4/5 by 7/7 and the right fraction 2/7 by 5/5.
In the end you get 28/35 +10/35. Now you can add them and you get 38/35 which simplifies to 1 3/35.
Find the area of the shaded figure in the diagram below. Use 3.14 for π and round your answer to the nearest hundredth.
A. 39.57in^2
B. 66.89 in^2
C. 200.67 in^2
D. 118.72 in^2
Answer:
D
Step-by-step explanation:
diameter of 1 circle = 21.3/3= 7.1
radius of 1 circle= 7.1/3=3.55
area of 1 circle =πr^2=3.14× (3.55)^2=39.57
area of 3 circle= 39.57×3=118.72
therefore,area of shaded portion= area of 3 circle =118.72
Plz I need help with only the perimeter one
Answer:
I believe the answer is 25.3
Answer:
25.4
Step-by-step explanation:
add em up then put the .3 after you add it up
In Greenville, the library is due south of the courthouse and due west of the community swimming pool. If the distance between the library and the courthouse is 7 kilometers and the distance between the courthouse and the city pool is 25 kilometers, how far is the library from the community pool?
Answer:
24 km
Step-by-step explanation:
this is a right triangle
use the pythagorean theorem
a² + b² = c²
a² + 7² = 25²
a² + 49 = 625
Subtract 49 from both sides
a² = 576
Take the square root of oth sides
a = 24
24 km
help me please i need a lot of help
Answer: 3 or 9/12
Step-by-step explanation:
3/4 to 0.75
0.75 * 4 = 3
