Part B If you were to randomly survey 500 people each from the two largest US cities, would this be a random sample? Why or why not?
Part C If you were to randomly survey 50 people from the phone books of 20 randomly chosen cities, would this be a random sample? Why or why not?
Part D If you were to randomly survey 10 people at 100 random eyeglasses stores across the country, would this be a random sample? Why or why not?
Answers
Answer:
B. It still might be random becuase you could still randomly pick people from those areas. C. Yes, because you are still randomly selcting from the phone books and from 20 random cities. D. No, Your just chosing people random people from the eyglasses store which means your chosing the probabilty of the people who only where glasses.
Step-by-step explanation:
Related Questions
question below......
Answers
Answer:
12π, option C is correct.
Using a shorter form of pi, the first step is to assign the default value for every circumference-radius problem. The r is the same value as radius, so in this case, that would be 6 m.[tex]C = 2\pi r[/tex]
Next, split this value into an equation, breaking down all 3 parts.[tex]2\pi r = 2 * \pi * 6[/tex]
Using the short form of pi, if you multiply all 3 numbers, your answer rounds to 37.68 m(Which is not on-the-nose, just an estimate that is extremely close to the real number).________________________________________________________
With the previous information, your answer is C.
________________________________________________________
What have we learned?We learned what a problem using radius-to-circumference looks like, and how to solve it using 3.14 for pi.
Questions related to the topic? Ask me in the comments box.
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Answers
Answer:
Coordinates system is a method for plotting coordinates on a plane or flat surface.
The green is y and the pink is x.
Answer:
Coordinates system is a method for plotting coordinates on a plane or flat surface.
Step-by-step explanation:
The green is y and the pink is x. I hope I helped!!
find the volume of this please.
Answers
Answer:
336 cubic feet
Step-by-step explanation:
14*12*2
Treat it the same as a rectangular prism (box).
Explained
20 POINTS HEELP-
What is the solution to the equation x + 9.5 = 27.5?
answers
x = 2.9
x = 18
x = 20
x = 37
Answers
Answer:
x=18
Step-by-step explanation:
Find the measure of the central angle you would draw to represent apple juice in a circle graph.
a) 90 degrees
b) 54 degrees
c) 144 degrees
d) 30 degrees
Answers
WILL CHOOSE BRAINLIEST!!! A is (2,2). A' is (-1,-1). Which sequence of transformations best describes this transformation?
A. Reflection across the x-axis, dilation using k-1/2
B. Rotation 80°, dilation using k=1/2
Answers
Answer:
A
Step-by-step explanation:
please help i am dying in iready
Answers
Answer:
50 50 chance
Step-by-step explanation: If there are 20 spins in total, 10 spins are even and 10 spins are odd.
please i really do need help on this question
Answers
Answer:
D, 24
Step-by-step explanation:
Describe in detail how you would create a number line with the following points: 3, 2.25, the opposite of 4, and – (–1fraction of one-half). Please be sure to describe on which tick marks each point is plotted and how many tick marks are between each integer.
PLEASE HELP!!!!!
Answers
Answer: Given : points 4 , 1 ,25 , opposite of 3 , -1/2To Find : draw on Number Line Solution :Numbers with a negative sign are less than zeroRight of zero represented by ‘+’ sign and to the left of zero represented by ‘–’ sign.+ sign numbers can be denoted as simply numbers On a number line the number increases as we move to the right and decreases as we move to the left. 1 : Draw a line and mark some points at equal distance on it as shown in the figure below Mark a point as zero on it. Points to the right of zero are positive integers and are marked simply 1, 2, 3 and so on , while points to the left of zero are negative integers and are marked – 1, – 2, – 3 and so on 2. Go 4 unit on right sides from Zero to show 43. Go 3 units on Left from zero to show opposite of 3 4. Divide number line between 1 & 2 in 4 Equal parts and go 1 part right of 15. Divide number line between 0 & -1 in 2 Equal parts and go 1 part left of 0
Step-by-step explanation:
HELP please Multiplication Properties of Exponents DROPBOX Part 3 (3parts)
Grade seven
Answers
10) x^2•y^4
11) 4n^2•m^6
12) 9u^4•v^8
hope this helps!
10)4x2 y4
11)9u4v8
The swimming pool is open when the high temperature is higher than 20°C. Lainey tried to swim on Monday and Thursday (which was 3 days later). The pool was open on Monday, but it was closed on Thursday. The high temperature was 30°C on Monday, but decreased at a constant rate in the next 3 days. What is the solution set of the inequality? (also please show the inequality to determine the rate of temperature decrease in degrees Celsius per day, x, from Monday to Thursday.)
Answers
Answer: 30° - 3d ≤ 20°
Step-by-step explanation:
Here the constant rate of decreasing the temperature = d degree,
Thus, the total decreasing in three days = 3d degree,
If the temperature on Monday = 30°
Then the temperature n Thursday = 30° - 3d
Since, The swimming pool is open when the high temperature is higher than 20°
⇒ 30° - 3d ≤ 20°
Which is the required inequality to determine the rate of temperature decrease in degrees Celsius per day, d, from Monday to Thursday.
Answer:
30-3d\le 20
Step-by-step explanation:
ASAP HELP I need to turn this in
Answers
Answer:
1. The greater range is the girls set.
2. The one with the greater median is the girls and the median is 110.
Step-by-step explanation:
The answers for the boys range from 60 to 120. This is a range of 60. For the girls, it is from 70 to 150, and that is a range of 80. The median(avg of middle points) of the boys is 90 and the median of the girls is 110(avg of 100 and 120).
B. The one with the greater MEDIAN is the set of girls their median was 10
If you need an explanation just ask
Hope this helps
show work to the answer
Answers
Answer:
6.5 feet.
Step-by-step explanation: The question is asking for the radius of the triangle, and the formula for that is r = c / (2 * π). Plugging in 41 for c, and 3.14 for two, the answer rounds up to 6.5 or 6.53 feet.
Sondie sold $6,300 worth of jewelry for her company. She earns $573.25 for
income each week. She is given a 20% commission on her total sales. What was
Sondie’s total income?
Answers
Answer:
i think maybe $1833.25
Step-by-step explanation:
[tex] \frac{20}{100} \times 6300[/tex]
= $1260 + $573.25
= $1833.25
You find 20% of $6300 which is 1260. Then you add that to the $573.25 and get that as your answer
Use the form |x-b|<=c or |x-b|>=c to write an absolute value inequality that has the solution set -1<=x<=3.
Answers
An absolute value inequality that has a solution set -1<=x<=3 is |x-1| <= 2
What is the solution set for an inequality?The set of values of the variable involved in the inequality for which the considered inequality holds true is called the solution set for that inequality.
We've to find an absolute value inequality that has the solution set
-1 <= x <= 3
1+2 = 3
and 1 - 2 = 3
Therefore, we can rewrite the considered inequality as:
1-2 <= x <1+2
Subtracting 1 from all the sides:
-2 <= x-1 <= 2
This is written as:
|x-1| <= 2 (it is because [tex]|x| \leq a \leftrightarrow-a \leq x \leq a[/tex] )
Thus, an absolute value inequality that has a solution set -1<=x<=3 is |x-1| <= 2
Learn more about absolute value inequality here:
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fill in teh blanks 9516 / 4
Answers
Answer:
2,379 & look below for remaining numbers
Step-by-step explanation:
The divisor 4 goes to the left of the whole box, because you are dividing all the numbers by 4.
So for the last box, 4 x 9 = 36
For the top of the 3rd box, it's 4 x ? = 280, so you do 280 divided by 4 = 70
For the 2nd box, 4 x 300 = 1200
For the 1st box, I did the problem of 9516 divided by 4 in long division form. 4 goes into 9 only 2 times & the 2 is in the thousands place. So on top of the 1st box goes 2,000 & in the box goes 4 x 2,000 = 8,000.
Add 8,000 + 1,200 + 70 + 36 = 9,516
9,516 divided by 4 = 2,379
2,000 + 300 + 70 + 9 = 2,379
math, help needed pls
Answers
PLEASE HELP ASAP ILL GIVE BRAINLIEST IF CORRECT
Select from the drop-down menus to correctly complete each statement.
Quadrilateral ABCD can be mapped onto quadrilateral EFGH with a ___ followed by a ___. The figures are ___.
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Answer:
The first blank is a dilation, which essentially means to shrink down in size. The second blank is transformation, to move the shape in place. The shapes are similar, since they are the same shape, but at a different size
Step-by-step explanation:
HOPE THIS HELPS IF IT DOESN'T CAN U TELL ME!!!!! :P
help help help help help help help
Answers
Answer:
edges: 24; vertices: 16
Step-by-step explanation:
to count the edges you must see how many places two shapes meet
on the top the shapes meet 8 times
in the middle they meet 8 times
on the bottom they meet 8 times
there are 24 edges
for the vertices you must count how many points there are
on the top there are 8
on the bottom there are also 8
so there are 16 vertices
Answer:
There are 16 vertices and 24 edges.
if one unit is equal to 2 feet, what is the perimeter of the garden?
Answers
have a great rest of ur day sir
3x =10(x-56) please help me
Answers
Answer:
x=80
Step-by-step explanation:
3x = 10(x-56)
Step 1: distributive property
3x = 10(x-56) ----> 3x = 10x - 560
Step 2: subtract 10x from both sides
3x - 10x = 10x - 560 - 10x ----> -7x = -560
Step 3: Divide both sides by -7
-7x/-7 = -560/-7 ----> x=80
done! :)
The solution of the linear equation 3x = 10 (x - 56) will be 80.
What is the solution to the equation?In other words, the collection of all feasible values for the parameters that satisfy the specified mathematical equation is the convenient storage of the bunch of equations.
The equation is given below.
3x = 10 (x - 56)
Simplify the equation, then we have
3x = 10 (x - 56)
3x = 10x - 560
7x = 560
x = 80
The solution of the linear equation 3x = 10 (x - 56) will be 80.
More about the solution of the equation link is given below.
https://brainly.com/question/22613204
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15) Joe had 1 /4 of an acre of land. He wanted to plant 3 different types of vegetables in equal amounts of space. How much land will he use for each type of vegetable?
Answers
Answer:
1/12 land would be used for each type of vegetable
Step-by-step explanation:
First, Joe has 1/4 of an acre of land and 3 different types of plants he wants to plant for equal distance within that area. To find out the land he will use for each type of vegetable you must divide 1/4 by 3
The simplest way to divide fractions is to use cross multiplication
1 1 1
_ x _ = _
4 3 12
Therefore 1/12 of an acre is the amount of land he will use for each type of vegetable.
To check this just multiply 1/12 by 3 giving you 3/12 which can be simplified back into 1/4
show work to the question
Answers
Answer:
Step-by-step explanation:
C=2πr use this to calculate both circumfrences then difference between
Members of a soccer team raised $1428 to go to a tournament. They rented a bus for $955.50 and budgeted $31.50 per player for meals. Write and solve an equation which can be used to determine p, the number of players the team can bring to the tournament.
Equation:
Answer: p =
Answers
Answer:
16 players can be brought to the tournament. The equation is written within my step-by-step explanation.
Step-by-step explanation:
Variable p = number of players
Set up an equation:
974.50 + 60.75p = 1946.50
Isolate variable p:
60.75p = 972
Divide:
p = 16
Check your work:
974.50 + 60.75(16) = 1946.50
974.50 + 972 = 1946.50
1946.50 = 1946.50
Yikes!!! Please please help me with this!!! :0
Answers
Debra needs 322 programs for the school play on Thursday. How many boxes of programs will she need, given that each box contains 48 programs?
Answers
Answer:
7 boxes
Step-by-step explanation:
Debra needs to fit 322 programs into boxes and each box can contain 48. Therefore, we must divide 322 by 48.
322 ÷ 48 ≈ 6.71
We need at least 7 boxes to contain the 322 programs because if we only have 6, then the remaining programs won't be in a box. Therefore, we have to round up to get 7 boxes.
I hope this helps and please mark me as brainliest!
What is the position of E on the number line below?
Answers
Answer:
15/7 or 2 1/7
Step-by-step explanation:
The position of E is:
2 1/7 (mixed number)
15/7 (improper fraction)
How did we get our answer?
Well, starting from the line after 2 to 3, we have 7 lines. So, we got 2 1/7
From mixed number to mixed fraction (view the attached image)
Hope this helps!
The position of point E on the number line is accurately represented by the mixed number 2 1/7 or the improper fraction 15/7.
The mixed number 2 1/7 can be interpreted as 2 whole units plus 1/7 of another unit. This places point E two whole units to the right of the origin, and an additional 1/7 of a unit further to the right.
Conversely, the improper fraction 15/7 is equivalent to 2 1/7 when simplified. This means that the point E lies at 15/7 on the number line. This fraction signifies 2 whole units and 1/7 of a unit, the same as the mixed number representation.
In conclusion, both representations—2 1/7 and 15/7—accurately indicate the position of point E on the number line. The point lies 2 whole units to the right and an additional 1/7 of a unit to the right of that position.
To know more about number line:
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What Ordered pairs would you proud to show the puppies weigh on a coordinate grid? How do you think the ordered pairs would be different if the puppies weight was measured every week instead of every month explain your reasoning
Answers
Answer: 5
Step-by-step explanation:
Step 1: Using one-step equations to solve problems.
a) Suppose you send about 12 text messages a day, and your older sister sends more text messages than you do. Together, you send a total of about 26 messages per day. About how many text messages does she send a day? Write an equation and solve for the unknown value. (2 points)
Answers
Answer:
14
Step-by-step explanation:
12+x=26
-12. -12
x=14
Explain: Take your total number of texts so 26 and subtract yours do 12
Example: 26-12
Rest of explain: You should end up with 14
Consider the graph shown.
What is the slope-intercept form of the equation of the line?
Answers
Answer: D
Use the formula y = (m or slope)x + (b or y-intercept)
Slope = 2 up and 3 right = 2/3
y-intercept = 2
So, Y = (2/3)x + 2