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Related Questions
HELP PLEASE !!!
A store owner asks each person to write "Yes" or "No" on a slip of paper as they leave, secretly writing down whether they were happy with their experience. At the end of the day, the owner selects 12 slips at random and looks at them.
These were the results: yes, yes, yes, no, yes, no, yes, yes, no, yes, no, yes
Estimate the proportion of all shoppers who were happy with their experience that day.
On a different day, the owner found that 25% of the 12 selected slips were marked "Yes." Should the store owner believe that these two results reasonably represent the overall proportion of happy shoppers, or should the owner gather more data? Explain how you know.
Answers
Answer: the owner should gather more.
Step-by-step explanation:
So they can have more overall data to make sure they are correct.
The owner should gather more data.
What is proportion?"A proportion is an equation in which two ratios are set equal to each other."
Consider given situation,
The results on the first day: { yes, yes, yes, no, yes, no, yes, yes, no, yes, no, yes}
Total slips = 12
number of slips marked yes: n(Yes)
On day 1, n(Yes) = 8
So, the proportion of happy shoppers would be,
= 8/12
= 67.7%
This means, approximately 68% of the 12 selected slips were marked "Yes"
On a different day, the owner found that 25% of the 12 selected slips were marked "Yes"
This means the percentage of happy shoppers decreased.
From these two results we cannot determine where people are happy shoppers or not.
So, the owner should gather more data.
Learn more about proportion here:
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The residents of a city voted on whether to raise property taxes. The ratio of yes votes to no votes was 5 to 7. If there were 3260 yes votes, what was the total number of votes?
Can whoever answes this please explain how. I'm completely lost.
Answers
Answer: 8184 votes
i suck at explaining things im sorry but if u have any questions, feel free to ask
Step-by-step explanation:
3260÷5=652
652(7)=4564
3260+4564=8184
what is 2x-4+7x=54.5
Answers
Answer:
=6.5
Step-by-step explanation:
2−4+7=54.5
9−4=54.5
9−4+4=54.5+4
9=58.5
99=58.59
=6.5
hope i helped plz mark me brainlest
Please help! I need this asap! Thank you. (^-^)
Answers
Answer:
b
Step-by-step explanation:
27 students are going on a field trip and 1 student is staying at school. What is the ratio of
the number of students who are staying at school to the number of students who are going
on the field trip?
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Answer: 1/28
Step-by-step explanation:
can someone help me real quick?
Answers
Find the slope of the
line through the
points (1,-2) and (-7,4)
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Answer:
-3/4
Step-by-step explanation:
To find the slope, plug the coordinates into the slope formula.
y2 - y1 / x2 - x1
4 - (-2) / -7 - 1
6 / - 8
-3/4
PLZ HURRY
10 POINTS AND BRANLIEST!!
1. Hilary's Horse Hideaway is buying dirt to fill their circular training area. The training circle is 28 feet across. What is
the area of the training arena?
2. The dirt is sold in truckloads that cover 75 sq feet of ground. How many truckloads of dirt will Hilary need?
Answers
Answer:
1. 615.75
2. 9
Step-by-step explanation:
also need help with this one !
Answers
Answer:
m = 3
Step-by-step explanation:
I'm sure of it...
Hope it helps u !!!
Answer:
m=3
Step-by-step explanation:
Measuring the drug use of the residents of a city has always been difficult. In the past, current drug use was estimated from questionnaire responses, but due to the social stigma associated with drug use, a large amount of response bias was known to be present. A proposed method for measuring a city's current drug is to measure the amount of drugs detected in the inflow to the city's wastewater treatment facility. This method was used to compare the Marijuana usage, through the measurement of the active ingredient THC-COOH, of London versus Milan over a 3 week period. Samples were made at randomly chosen times throughout the day for 21 consecutive days in both cities. Units are mg/day/1,000 people. What are the two independent samples
Answers
is it possible to make a triangle that has the angles measuring 60° 30° and 45°
Answers
Answer:
No.
Step-by-step explanation:
It is not possible to make a triangle that has the angles measuring 60 degrees, 30 degrees and 45 degrees because the angles of a triangle have to add up to 180 degrees. 30+45+60=135
Therefore, these angles would not measure up to 180 degrees. It is not possible to make a triangle that has these angles. These angles measure up to 135 degrees not 180 degrees.
3. Find the measure or arc JK.
Hint - arc LK is a semi circle
A.) 90
B.) 116
C.) 128
D.) 130
Answers
Answer:
C
Step-by-step explanation:
KL = 180°
JL = 2×26° = 52°
KL = KJ + JL
KJ = KL - JL
KJ =180° - 52°
KJ = 128°
. Stephanie has a jewelry box shaped like a cube with a volume of 125 cubic inches. Write an expression to find the edge length of the jewelry box in inches.
Answers
Answer:
25
Step-by-step explanation:
To get this right, we need to get the correct formula for the volume of a cube.
Imagine this:
What is the area of a square? Easy ! Length of the edge times itself. You can imagine what this means as the edge if the we have one line E move straight along an E-long line, the path it made is the square.
Similarly to the cube. Imagine what can be a volume of a cube with edge E that has something to do with the edge?
That's right. A square with edge Emove vertically straight in a E-long line. So the correct volume should be the area of the square times the length of its edge. But the area of the square is already the edge times itself
In formula, if a cube has volume V and edge length E, we have the equation.
V = E×E×E
What is log152 rewritten using the power property?
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Answer: Power property: That means the power m can be brought down to front of the logarithm.
Step-by-step explanation:
Logarithmic function, Log 152 can be written as Log 19 + 3 log2.
What is a logarithmic function?The opposite of an exponential function is a logarithmic function. A log function and an exponential function both use the same base. An exponent is a logarithm. f(x) = bˣ is how the exponential function is expressed. The formula for the logarithmic function is f(x) = log base b of x.
Given, A logarithmic function log152
Simplifying the Function,
=> log152
=> log( 19 * 8)
From the additional property of the log,
=> log 19 + log 8
=> log 19 + log2³
From the power property of the logarithmic
=> log 19 + 3 log2
Learn more about logarithmic functions here:
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The points scored by a football team in their first 8 games of the season were {7, 20, 13, 26, 16, 39, 18, 13}. What is the difference between the mean and the median number of points scored? Question 9 options:
Answers
Answer:
19
You have to add up all the sums and divide it by 8 so therefore your answer is 19.
Answer:
the difference between them is 22
Step-by-step explanation:
1+1=1268934457687423456779052436869867543?
Answers
Answer:
2
Step-by-step explanation:1+1=2 its 2 okay its 2 not 1268934457687423456779052436869867543
please help me with the question
Answers
have a great day! steps are down below! :)
Chakan worked at the warehouse after school. He earned $9.25 per hour stacking boxes. Which equation correctly relates Chakan’s total earning, d, to the number of hours he worked, h? (6.EE.9)
x a. d=9.25/h
x b. 9.25/d
x c. d = 9.25h
x d. h = 9.25d
Answers
Answer:
C. d=9.25h
Step-by-step explanation:
total earnings= 9.25 x number of hours worked
WILL GIVE BRAINLIEST! PLEASE HELP!
Which of the following
expresses the possible number of.
positive real solutions for the polynomial equation shown
below?
5x3 + x2 – 7x + 28=0
A. Two or zero
B. One
C. Three or one
D. Zero
Answers
Answer:
C
Step-by-step explanation:
Since the polynomial is of 3rd degree, it has 3 solutions. The possibilities are 3 real solutions or 1 real solution and 2 imaginary solutions.
Therefore, C is the correct answer
help please. it would really help if someone explained
Answers
0/8
Explanation:
There is no number greater than 10 on the spinner, so there is a 0/8 chance that the spinner will land on a number greater than 10.
What is the value of x to the nearest tenth?
29.6
X
73°
33°
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What is the angle relationship between angles 2 and 6? Please help, thanks!
Answers
Answer:
Corresponding and Congruent
Step-by-step explanation:
-2 + (-3) + 5 please help me with this question and also step by step
Answers
Answer:
0
Step-by-step explanation:
just calculate the simole way
Answer
Zero
Step-by-step explanation:
The negative sign in "-3" cancels out the addition sign making -2 -3 + 5.
In order of operations, you solve it left to right. So -2 -3 = -5
Then -5 + 5 = 0 or 5 - 5 = 0
56°
101°
Find the value of the missing angle a.
Answers
Answer:
the x angle = 45 ............. 45
Triangle add up to 180°
Add 79 and 56 and 180-135= 45
45°
the LL theorem is a special case of the
Answers
Answer:
the LL theorem is a special case of the SAS Postulate or SSS Postulate
Step-by-step explanation:
What is the range of the graph below?
Answers
Answer:
B) -4 < y
Step-by-step explanation:
The lowest point on the y axis of the graph is -4 and everything else is higher
WILL GIVE BRAINLIEST! Please help
Waterbrook Farm Includes 240 acres of cropland. The farm owner wishes to plant this
acreage in both corn and soybeans. The profit per acre in com production is $325 and
In soybeans is $180. A total of 320 hours of labor is available. Each acre of com
requires 2 hours of tabor, whereas each acre of soybeans requires 1 hour of labor.
Lot x = the number of acres planted with corn.
Let y = the number of acres planted with soybeans.
1) What would the farm's profits be if they planted only corn?
2) What would the farm's profits be if they planted only soybeans?
3) Find the equation for the Waterbrook Farm's profit (P = ),
4) Make a system of inequalities based off the constraints of the Farm.
5) In DESMOS. graph the system of inequalities
6) How should the land be divided between the corn and soybeans in order to yield
the mamum profit?
7) What is the maximum profit of planting both com and soybeans for the Farm?
Answers
Answer:
1) $52,000
2) $43,200
3) P = 325 × x + 180 × y
4) x + y ≤ 240
2·x + y ≤ 320
325 × x + 180 × y ≤ 52,000
5) Please find a similar graph created with MS Excel
6) Corn will have 80 acres
Soybean will have 160 acres
7) $54,800
Step-by-step explanation:
The acres of cropland at the Waterbrook Farm, A = 240 acres
The profit per acre in corn production, p₁ = $325
The profit per acre in soybean production, p₂ = $180
The hours of labor required by each acre of corn = 2 hours
The hours of labor required by each acre of soybeans = 1 hours
The number of acres planted with corn = x
The number of acres planted with soybeans = y
1) The farm's profit, 'P', if they planted only corn is P = p₁ × A
∴ P = $325/acre × 320 hours/(2 hours/acre) = $52,000
The farm's profit if they planted only corn, P = $52,000
2) The farm's profit, 'P', if they planted only corn is P = p₂ × A
The required labor for cultivating the 240 acres at 1 hour/acre = 240 hours of labor
Therefore, the labor is sufficient for the entire farmland, we get;
The profit, P = $180/acre × 240 acres = $43,200
∴ The farm's profit if they planted only soybeans, P = $43,200
3) The equation for the Waterbrook Farm's profit, 'P' can be found, depending on the area of the farm used for the corn and the soybeans as follows;
P = 325 × x + 180 × y
4) The system of inequalities includes;
x + y ≤ 240
2·x + y ≤ 320
325 × x + 180 × y ≤ 52,000
5) Using DESMOS, we have;
The graph of the systems of inequalities is plotted and a graph similar to the attached graph created with MS Excel is found
6) The maximum profit point found using DESMOS is (80, 160)
Therefore, for maximum profit, 80 acres should be used for corn while 160 acres should be used for soybeans
7) The maximum profit of planting both corn and soybeans is found from the profit obtained from the land divided between corn and soybeans in order to yield maximum profit as follows;
P = 325 × 80 + 180 × 160 = 54,800
The maximum profit of planting both corn and soybeans, P = $54,800.
PLEASE HELP!!!!!! REAL ANSWERS ONLY!!!!!! NO LINKS!!!!!!!
Answers
Answer:
the formula to find area of a circle is A=πr²
so the radius is 10
A=π10²
A=20π
I hope it helps
Please help My brain needs help!
Answers
Answer: c
Step-by-step explanation: there is already 1/4 of the pie and we know that 80 people have chosen 80, so the 3 left have to add up to 240.
Aisha has an aquarium that can hold 150 cubic feet of water. The aquarium is 3 ft high. Which of the following could be the dimensions of the base.
A. 4 ft by 12 ft.
B. 5 ft by 12 ft.
C. 6 ft by 7ft.
D. 10 ft by 15 ft
Answers
Answer:
B. 5 ft by 12 ftStep-by-step explanation:
Volume of the aquarium is approximately 150 cubic feet and its height is 3 feet.
The base area is:
150/3 = 50 square feetThe answer options:
A. 4 ft x 12 ft = 48 sq ft < 50sq ft, noB. 5 ft x 12 ft = 60 sq ft > 50 sq ft, yesC. 6 ft x 7 ft = 42 sq ft < 50 sq ft, noD. 10 ft x 15 ft = 150 sq ft > 50 ft, no as too big