Answer:
aku ga bisa enggrez
Step-by-step explanation:
cuyyyyyyyy
Suppose we know that a confidence interval is (27,35), with a margin of error of 4. Find the sample mean (x¯).
May u explain it alittle more im just confused
The formula for the sample mean, the margin of error, and the confidence interval.
Sample mean + margin of error = High-end confidence interval
Sample mean - margin of error = Low-end confidence interval
The sample mean is 31.
What is a mean?It is the average value of the set given.
It is calculated as:
Mean = Sum of all the values of the set given / Number of values in the set
We have,
Confidence interval = (27,35).
The margin of error = 4.
The formula for the sample mean, the margin of error, and the confidence interval.
Sample mean + margin of error = High-end confidence interval
Sample mean - margin of error = Low-end confidence interval
Now,
The sample mean = x
x + 4 = 35 ____(1)
x - 4 = 27 _____(2)
From (1) we get,
x = 35 - 4 = 31
From (2) we get,
x = 27 + 4
x = 31
Thus,
The sample mean is 31.
Learn more about mean here:
https://brainly.com/question/23263573
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A newspaper reports the following changes in the temperature of a city over 4 days:
2.64 degrees Celsius, negative 2 over 9 degrees Celsius, −0.35 degrees Celsius, 5 over 8 degrees Celsius
Write an expression to show the average daily change in the temperature of the city.
Write the steps to solve the expression. Round your answer to the nearest hundredth.
I kind of know what I’m Doing here but I want to make sure. In simple terms can someone show me a few ideas for exspressions and how to solve each one?
Answer:
I thought I answerd this one
A sandbox has an area of 32 square feet, and the length is 4 1/2 feet. What is the width of the sandbox?
to answer this you would need to divide the area (32) by the side length (41/2)
im gonna change it to 4.5
32/4.5 which is about 7.11->answer 7.11->
Answer:
about 7.1 feet for the answer
Step-by-step explanation:
Can anyone write me a definition of what Proportional Relationships are? (Must be exactly 5 words or less !! :D)
Two variables with equivalent ratios
To be consistent with the mystery theme, a local movie theater reported the attendance at their mystery movie festival in the form of a problem to be solved. The report stated the following: “If there were 2 times more adults plus an additional 86 adults, a total of 638 adults would have been in attendance.”
Refer to the information above. If twice as many children as adults attended the festival, then how many children attended the mystery movie festival?
Group of answer choices
A. 276
B. 552
C. 724
D. 466
A local farmer started the year with
56 farm animals. At the end of the year, the farmer had 63 farm animals. What was the percent of change? (Show work)
Answer:
15 percent
Step-by-step explanation:
because i just guessed
help pleaseeee loves -mother
Answer:
100
Step-by-step explanation:
Answer:
1.5% is shown.
Step-by-step explanation:
it is 2 squares cut in half so there are four pieces total. One whole thing is shaded thought making it 1.00 or 100% colored in. The other model is only half colored in making it 0.50 or only 50%. However they ask for the representation of both models so it comes out to 1.5%
Graph y=2x−7y
Please help I am struggling whoever helps me with the correct answer I will mark "Brainlyist"
May someone help me with this. The question is in the picture.
Answer:
34
Step-by-step explanation:
1. 680×5% where what I do, 680×0.05 because it's easier for me. Whatever way you do, you get the same thing.
2.You got the answer! 680×0.05=34
(I'M NOT GOOD AT EXPLAINING THINGS SO DON'T SUE ME IF YOU DIDN'T GET IT :] )
I need help beacuse is $9.86 x 8 is 78.88 right ???
2x − 5 > 3 or −4x + 7 < −25
you have to plot it on a number line
Answer:
8
Step-by-step explanation:
2x - 5 > 3 or -4x + 7 < -25
2x < 8. or -4x < -32
x < 4. or. x > 8
Please solve questions 3-5!!! PLEASE SOLVE ON PAPER, PHONE ETC!! PLEASE SHOW WORK DUE TOMORROW!! I WILL GIVE BRAINLEST TO PERSON WHO SLOVES IT RIGHT OR FIRST
Answer:
4) 32522 ( is the slash a one? )
5) 153822
6) 41634
7) 60214
8) 976336
10) 779394
11) 120317
12) 34980
Step-by-step explanation:
You multiply
I hope it is ok that I didn't show how I did but I answered them for you
Due right now!!! fast please and right :)
Answer:
Phyllis starts with 50$ and Chen starts with 15$.
Step-by-step explanation:
Sarah babysits her neighbor's son to make money. Her earnings can be represented by the equation
M = 9h
where M is the money she earns and h is the hours she babysits.
Samara babysits her cousin to make money. Her earnings can be represented by the graph.
Answer:
7/108 or .006481
Step-by-step explanation:
Answer:
not gonna lie, i don't really know but maybe it could be $3 an hr.
Step-by-step explanation:
If you look at where the 2nd dot is on the graph, its lined up with 3 & 9. So, i would say to divide the 9 & the 3 to get 3 which shows $3 per hour.
Hope this is right and it helps! :)
Which ratios have a unit rate greater than one choose all that apply
Answer:
9/8 miles, 7 miles, 4 miles
GUYS ACTUALLY PLEASE HELP ME IT DUE TONIGHT
am dead ☠️
Answer:
5/3; 5/21
Step-by-step explanation:
he should have simplified 3/7 to 1/7 and multiplied 1/7 and 5/3 to find the product 5/21
Walmart marked up a bottle of nail polish 150% in order to make profit. if Walmart sells the nail polish for $8.75, what was the original cost of the polish?
The original price of the nail polish with a 150% markup sold at $8.75 is $3.50.
Let x be the original price of the polish.
Walmart marked up 150%.
Selling Price = Original Cost + Mark-up
therefore the selling price = x + 150% of x
we know the selling price is $8.75
Therefore, substituting the values:
8.75 = x + 150% of x
convert percentages to decimals:
8.75 = x + 1.5x
combine like terms:
8.75 = 2.5x
divide by 2.5 into both sides:
3.5 = x
use reflexive property:
x = $3.50
Thus, the original price of the nail polish is $3.50.
Learn more about markups:
brainly.com/question/28945726
When a flash of lightning occurs, the number of seconds elapsed until thunder is heard can be used to approximate the distance from the storm. The graph models this situation. Which equation can be used to approximate the distance from a storm, y , in miles, given the number of seconds, x , that has elapsed from the moment that a flash of lightning is seen to the time thunder is heard?
Please help!! On a time limit!!!
Answer:
the line is at a 6.9 degree angle
Step-by-step explanation:
when the y = 69 the x = 420
Answer:
The answer is y = 1/8x
Step-by-step explanation:
Slope-intercept form is y = mx + b, with m being the slope and b being the y-intercept.
In this graph, we can see the line intersects the y-axis at point (0, 0). This means the y-intercept is 0, so we don't have to add it in the equation.
To find the slope, we use the formula m = (y₂ - y₁)/(x₂ - x₁) using two coordinate points on the line: (0, 0) and (8, 1).
Substituting it in the formula, we get m = (1 - 0)/(8 - 0), which simplifies to 1/8.
Putting this information into slope-intercept form, we get that the equation of the line in slope-intercept form is y = 1/8x.
Hope this helps!
GCF for 11q 55qr find the GCF of each pair of monomials
a.11 B. 11q
c 11r d 11qr
Answer:
b
Step-by-step explanation:
After you multiply a number by 9 and subtract the product from 300, the difference will be 183. Find the number.
Answer:
x=13
Step-by-step explanation:
300-(9x) =183
300-183=9x
117=9x
x=117/9
x=13
check:
300-117=183
(Redoing the question so everyone can see) Multiply. Enter the product in the simplest form.
2 2/5 x 5/7
The product is _____?
Please tell me how you got it very clearly
Any spam, nonsense, links, and anything that does not relate to this question will get deleted. Thank you.
A section of road covers 18.3 square feet. Each square foot will require 5.1 minutes to repair.
How many total minutes will it take to repair this section of road?
Enter your answer in the box.
Answer:I think it’s 61 minutes
Step-by-step explanation:
please help me with this problem
Answer:
6/7
Step-by-step explanation:
1(3/4)
____
7/8
hey i need help with math algebra 8th grade homework and its functions
I'm not for sure but maybe a tutor can help you. I use the website all the time. You can look up askrose.com and they can help you. Its free too.
Have a good day
Which expression is NOT equivalent to 4 - 10e + 7e - 13?
A.-3e-9
B.-3(e+3)
C.-1(3e + 9)
D.-1(3e - 9)
please help its that last question
26 PTS
[tex]▪▪▪▪▪▪▪▪▪▪▪▪▪ {\huge\mathfrak{Answer}}▪▪▪▪▪▪▪▪▪▪▪▪▪▪[/tex]
Solution ~
[tex]7 \dfrac{5}{6} - 3 \dfrac{1}{2} [/tex][tex] \dfrac{47}{ 6} - \dfrac{7}{2} [/tex][tex] \dfrac{47 - 21}{6} [/tex][tex] \dfrac{26}{6} [/tex][tex] \dfrac{13}{3} [/tex][tex]4 \dfrac{1}{3} [/tex]Use mental math to find the sum.
80+40+170
Answer:
290
Step-by-step explanation:
80+40=120
120+170=290
290
Answer:
290
Step-by-step explanation:
If you like my answer than please mark me brainliest thanks
Multiply. Enter the product in the simplest form.
3/8 × 2/5
The product is _____?
Please tell me how you got it very clearly
Any spam, nonsense, links, and anything that does not relate to this question will get deleted. Thank you.
[tex] \frac{3}{8} \times \frac{2}{5} \\ = \frac{6}{40} [/tex]
= 3/20
Answer:you have to multiply 3 by 2 =5 and then 5x8 then it’s already the smallest so it’s 5/8
Step-by-step explanation:
help???? i’m no good at math
Answer:
Apply the distributive property to the left-hand side of the inequality.
Step-by-step explanation:
Using PEMDAS, what you need to do first is clear!
P -> parentheses ( distribute, clear them out, etc. )
E -> exponents
M -> multiplication
D -> division
A -> addition
S -> subtraction
Going in order, you would apply the distributive property first to clear out the parentheses.