Answer:
The lower bound of the 95% confidence interval for the mean sale time for all homes in the neighborhood is of 160 days.
Step-by-step explanation:
We have that to find our [tex]\alpha[/tex] level, that is the subtraction of 1 by the confidence interval divided by 2. So:
[tex]\alpha = \frac{1 - 0.95}{2} = 0.025[/tex]
Now, we have to find z in the Ztable as such z has a pvalue of [tex]1 - \alpha[/tex].
That is z with a pvalue of [tex]1 - 0.025 = 0.975[/tex], so Z = 1.96.
Now, find the margin of error M as such
[tex]M = z\frac{\sigma}{\sqrt{n}}[/tex]
In which [tex]\sigma[/tex] is the standard deviation of the population and n is the size of the sample.
[tex]M = 1.96\frac{72}{\sqrt{22}} = 30[/tex]
The lower end of the interval is the sample mean subtracted by M. So it is 190 - 30 = 160 days
The lower bound of the 95% confidence interval for the mean sale time for all homes in the neighborhood is of 160 days.
00
A group of 150 middle school students were asked whether they prefer playing video games or watching TV in their spare time. The genders of the students and
their responses are reported in the following table.
Playing video
games
Watching TV
Girls
23
64
Boys
43
20
E
(a) What percentage of the students are girls?
(b) What percentage of the students prefer watching TV?
х
$
2
Answer:
58%56%Step-by-step explanation:
a) Number of girls:
23 + 64 = 87Percentage:
87/150*100% = 58%b) Number of students prefer watching TV:
64 + 20 = 84Percentage:
84/150*100% = 56%Answer:
no of percentage of girls=no of girls/total ×100%
=87/150×100%=58%
percentage of the students prefer watching TV
=total no the students prefer watching TV/total std.×100%
=84/150×100%=56%
Brainliest for correct answer asap
Answer:
1st one
Step-by-step explanation:
Step-by-step explanation:
answerss
the Last one or the 1st one but go w it the last
Hello, who would you do me the favor of helping me with this question?
He says:
Show, using the property of the number of diagonals of a polygon, that the triangles have no diagonals.
I hope they help me
Step-by-step explanation:
diagonal of a polygon formular =sum of diagonal =5-3-5/2. A triangle do not have diagonal
(50 points) please help! no links, brainliest, extra points.
I understand if you need points, you can go to my old questions and answer them for points, please only answer if your 100% sure you're correct. I've redone this over 20 times, asked over 50, and failed all those times. thank uu.
The dot plot below shows the number of vacations taken by the sixth-grade students at Walker Junior High one year.
What is the interquartile range of the data set shown?
A. 4
B. 3
C. 1
D. 2
Answer:
B. 3
Step-by-step explanation:
The 3q - 1q = IQR
3q= 4,
1q= 1
4-1 = 3
Answer:
2
Step-by-step explanation:
What’s the correct answer for this question?
Answer:
the solution is 25/7
I did 9x2=18+7
Can someone help me out please?
hello guys, what is 2+2 equal to?
Hiii dear, here is ur answer
Answer:
2+2=4
What is 2/5 × 4? (Please help me)
Answer:
Exact Form: 8/5
Decimal Form: 1.6
Mixed Number Form: 1 3/5
Step-by-step explanation: Simplify the expression.
brainliest or a thank you pls :)
I WILL GIVE YOU BRAINLIEST!
What is the measure of n?
12
4
n
m
n =
V[?]
Enter
After answering the question provided, we can predict that the result will be as in the triangle by Pythagorean theorem = [tex]\sqrt{12^2 - 4^2}[/tex] => N = [tex]\sqrt{144 - 16}[/tex] => n = [tex]\sqrt{132}[/tex]
What precisely is a triangle?A triangle is a polygon because it includes four or so additional parts. It features a simple rectangular shape. A rectangle having edges A, B, and C is referred to as a triangle. When the sides are actually not collinear, Euclidean geometry yields a single plane and cube. If a triangle contains three parts and three angles, it is a polygon. The intersections of a triangle's three sides are referred to as its corners. The sum of a triangle's sides is 180 degrees.
by Pythagorean theorem
n = [tex]\sqrt{12^2 - 4^2}[/tex]
N = [tex]\sqrt{144 - 16}[/tex]
n = [tex]\sqrt{132}[/tex]
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A parallelogram has a base of 10 feet and a height of 12 feet.
Use the figure to complete the statements.
The area of the parallelogram is __________ft2.
First choice: 120
Second choice: 100
Third choice: 144
Fourth choice: 22
Step-by-step explanation:
♨ [tex] \underline{ \underline{ \large{ \tt{G \: I \: V \: E \: N}}}} : [/tex]
Base ( b ) = 10 ftHeight ( h ) = 12 ft♨ [tex] \underline{ \underline{ \large{ \tt{ T\: O \: \: F \: I \: N \: D}}} }: [/tex]
Area of the parallelogram☪ [tex] \underline{ \underline{ \large{ \tt{S \: O \: L \: U \: T\: I \: O \: N}}}} : [/tex]
[tex] \boxed{ \large{ \sf{Area \: of \: a \: parallelogram ( \: A \: )= base \: (b) \times height \: (h)}}}[/tex]
⟼ [tex] \large{ \sf{10 \: ft \times 12 \: ft}}[/tex]
⟼ [tex] \boxed{ \large \sf{120 \: {ft}^{2} }}[/tex]
☃ [tex] \boxed{ \boxed{ \large{ \sf{OUR \: FINAL \: ANSWER : \boxed{ \underline{ \bold{120 \: {ft}^{2} }}}}}}}[/tex]
Hope I helped ! ♡
Have a wonderful day / night ! ツ
Let me know if you have any questions regarding my answer! ☄
☞ [tex] \underline{ \underline{ \mathfrak{Carry \: On \: Learning}}}[/tex] !! ✎
▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁
Answer:
First choice: 120 ft² is a required answer.
Step-by-step explanation:
The area of the parallelogram is __________ft2.
=base ×height=10×12=120ft²
Study island on 5a area
Answer:
d'Italia dies does did
Step-by-step explanation:
sun will use this rod hero oath his ryu
Find an angle between 0 and 2 pi that is coterminal with -17 pi/ 10
Answer:
3pi/ 10
Step-by-step explanation:
Enter a problem...
Trigonometry Examples
Popular Problems
Trigonometry
Find the Reference Angle (17pi)/10
17π1017π10
Since the angle 17π/ 10 is in the fourth quadrant, subtract 17π/10 from2π.
2π−17π/10
The angle between 0 to [tex]2\pi[/tex] that is coterminal with [tex]-\frac{17\pi }{10}[/tex] is [tex]\frac{3\pi }{10}[/tex].
What is coterminal angle?Coterminal angles are angles in standard position (angles with the initial side on the positive x -axis) that have a common terminal side.
Angles are considered to be in standard position if the initial side is on the positive x-axis and the vertex at the (0,0) point of the Cartesian plane. All angles generated that share the same terminal side are coterminal angles. These are angles that have differences of multiples of 360n or n2pi where n is an integer.
A coterminal angle is found by simply adding or subtracting 360 and its multiples.
The coterminal angles of 20 degrees for example are 20 + 360 = 380 or 20 - 360 = -340. This may continue by adding or subtracting 360 each time.
To get coterminal angles, you simply have to add or subtract 2[tex]\pi[/tex].
According to this problem,
We are looking for a coterminal angle that is between 0 to 2[tex]\pi[/tex], so we will add [tex]2\pi \ to \ \frac{-17\pi }{10}[/tex].
= [tex]\frac{-17\pi }{10} +\frac{20\pi }{10}[/tex]
= [tex]\frac{-17\pi +20\pi }{10}[/tex]
= [tex]\frac{3\pi }{10}[/tex]
Hence,
The angle between 0 to [tex]2\pi[/tex] that is coterminal with [tex]-\frac{17\pi }{10}[/tex] is [tex]\frac{3\pi }{10}[/tex].
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Find the area of a regular 15-gon with radius 64 mm
Answer:
To find the area of a regular polygon, all you have to do is follow this simple formula: area = 1/2 x perimeter x apothem. Here is what it means: Perimeter = the sum of the lengths of all the sides. Apothem = a segment that joins the polygon's center to the midpoint of any side that is perpendicular to that side.
Step-by-step explanation:
What is the measure of ∠x?
∠x = ___
1) The Trends in International Mathematics and Science Study (TIMSS) in 2007 examined eighth-grade proficiency in math and science. The mean mathematics scale score for the sample of eighth-grade students in the United States was 508.5 with a standard error of 2.83. Construct a 95% confidence interval for the mean mathematics score for all eighth grade students in the United States.
Fatima will take an UBER to the movie
theater. She will pay a one time fee of
$5 plus $2.65 per mile. Which equation
can be used to find y, the total cost of
the trip, if x represents the number of
miles of the trip?
A. y = 5x + 2.65
B. y = 5x - 2.65
C. y = 5 + 2.65x
Need
D. y = 5 - 2.65x
Answer:
A
Step-by-step explanation:
If x is the mile then you pay 5 dollars a mile or 5x. The flat fee is 2.65 so we add it and since it's not per mile we don't add an X.
what is z + 5x3 because im lost
Answer:
z + 15
Step-by-step explanation:
In this example, it's not an equation (it doesn't "equal" anything), just an expression. We cannot combine z with the actual numbers. It is a variable, so it could be combined with other terms including z, like if it said 2z + z + 5 x 3.
The only thing you can do with your expression is "combine like terms" by multiplying 5 and 3 to get 15.
I hope this helped. Happy to answer questions you may have.
Answer:
15 the other person had a better explanation he/she deserves brainly
Step-by-step explanation:
Re-write this question to make it a statistical question: How old am I?
Answer:
How many years has it been ever since I was born?
Step-by-step explanation:
Definition of a statistical question :
A statistical question is one that can be answered by collecting data and where there will be variability in that data. This is different from a question that anticipates a deterministic answer. For example, "How many minutes do 6th grade students typically spend on homework each week?" is a statistical question.
for a school project, Alice surveyed several male students in her class to determine whether there is a relationship between their heights and weights. which scatter plot represents the data displayed in the table below.
Height (in.) 54, 56, 58, 61, 63, 65, 70, 71
Weight (lbs.) 100, 110, 122, 135, 146, 150, 170, 171
the pictures are down below
What is the domain of the function y=xVx?
- 0
0
0
O 15x<0
Answer:
Option A will be your answer
Step-by-step explanation:
hope it helps...
have a great day!!
The cube root function , has no domain restrictions. The domain of the cube root function is all real numbers, or ℝ .
What is domain ?The domain of a function is the complete set of possible values of the independent variable.
The domain is the set of all possible x-values which will make the function "work", and will output real y-values.
When finding the domain, remember:
The denominator (bottom) of a fraction cannot be zero.
The number under a square root sign must be positive in this section.
The domain of the expression is all real numbers except where the expression is undefined. In this case, there is no real number that makes the expression undefined.
Domain: (- ∞ , ∞) , {x | x ∈ [tex]\mathbb{R}[/tex]}
Hence, The domain of the cube root function is all real numbers, or ℝ .
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The result of =ROUND(513.2413,2) is __
Answer:
513.24132
Step-by-step explanation:
None of the numbers are large enough to make the next number higher. Therefore that would just be your answer.
The hypotenuse of a right triangle is 25 feet long The height of the right triangle is shrinking at a rate of 1 ft/week. What is the rate of change of the base of the triangle when the height is 7 feet?
9514 1404 393
Answer:
increasing 7/24 ft per week
Step-by-step explanation:
An expression for the length of the base can be written from the Pythagorean theorem relation between the sides of the triangle.
If the height is 7-x, where x is the number of weeks after the height is 7 feet, then the base length is ...
b = √(25^2 -(7-x)^2) = √(625 -(49 -14x +x^2)) = √(-x^2 +14x +576)
Then the rate of change of b with respect to x is ...
b' = (-2x +14)/(2√(-x^2 +14x +576))
When x=0, the rate of change of the base is ...
b' = 14/(2√576) = 7/24
The base is increasing 7/24 ft per week when the height is 7 ft.
What is the value of x in the equation x- 3/4 =5 1/6
Answer:
5 11/12
Step-by-step explanation:
First convert the mixed number into an improper fraction: 31/6
Find a common denominator:
18/24 and 124/24
124/24+ 18/24 is 142/24 and that is the same as 5 11/12
Hopefully this helps and you can have a lovely day!
PLEASE PLEASE HELP ME NO DOWNLOADABLE FILES
How many solutions
y=2x^2+9x
Answer:
There's going to be 2 solutions
Step-by-step explanation:
What is the measure of n?
n
20
m
5
N= [?]
Please help I’ll give brainliest
Answer:
n = 10
Step-by-step explanation:
n is the altitude of the right triangle.
Apply the right triangle altitude theorem/geometric mean theorem to find n.
Which is:
h = √(xy)
Where,
h = n =?
x = 5
y = 20
Plug in the value into the equation
n = √(20*5)
n = √100
n = 10
Answer:
Step-by-step explanation:
There were 62
females and 217
males present at the high school pep rally. Find the ratio of males to the total number of people present. Express as a simplified ratio.
Answer:
7 : 9
Step-by-step explanation:
62 + 217 = 279
total: 279
females: 62
males: 217
males : total = 217 : 279
217 and 279 are divisible by 31
217 : 279 = 7 : 9
Draw the reflection of the quadrilateral across the x-axis.
Answer:
Points:
x = 1, y = -3
x = 2, y = -6
x = 6, y = -7
x = 7, y = -1
Basically just make sure that all x-coordinates stay the same (positive), while y-coordinates are in opposite signs (negative)
9514 1404 393
Answer:
see attached
Step-by-step explanation:
Each point moves to a position as far below the x-axis as the original point is above the x-axis. The x-coordinate remains unchanged.
The Goodsmell perfume company has a new line of perfume and is designing a new bottle for it. Because of
the expense of the glass required to make the bottle, the surface area must be less than 150 cm2. The
company also wants the bottle to contain at least 100mL of perfume. The design under consideration is in the
shape of a cylinder.
Determine the maximum volume possible for a cylindrical bottle that has a total surface area of less than 150
cm2 Determine the volume to the nearest 10mL. Report the dimensions of the bottle and the corresponding
surface are and volume.
This cylindrical perfume bottle needs to be boxed in a prism for sale on store shelves. The Goodsmell perfume
company would like a box with the smallest possible surface area which will contain your design for the
perfume bottle. Report the dimensions of the box and the corresponding area and volume.
The Pretty Perfume company, Goodsmell's competition, has also designed a new perfume bottle. The bottle is
to be a spherical shape with a diameter of 7cm. Determine the volume and surface area of this bottle.
The spherical bottle has a conical shaped lid with a diameter of 5cm and a height of 4.5cm. Given this
information, calculate the volume and surface area of the lid of the spherical shaped bottle.
Determine the dimensions of the smallest possible box which could be used to package Pretty Perfume's new bottle with its spherical bottle and conical-shaped
lid. However, this box is not shaped like a rectangular prism. Pretty Perfume would like to have unique packaging and have chosen to have a box shaped like a
pyramid. Calculate the volume and surface area of this pyramid-shaped box.
The Final Product:
Prepare a written report that includes:
1. A clear and concise explanation of the process that you used to solve the problem.
2. The calculations that you made, presented in an organized fashion.
3. A rationale (reason) for your selection of values.
Answer:
its to long for me
Step-by-step explanation:
Dara has to solve 35 math problems for homework. She has completed 14 of them.what fraction of the problems does she have left to do?
Answer:
The correct answer is 3/5 :)
ASAP it’s due tomorrow ASAP
Answer:
D
Step-by-step explanation: