A spinner is divided into 10 congruent sections. Each section is labeled with a number as shown. The spinner will be spun one time.
What is the probability that the arrow will land in a section that is labeled with a number that is a multiple of 2
Answer: 1/2 i think
Step-by-step explanation:
Davide is hanging 4 pictures of his parents. They asked him to make sure all the pictures are equally spaced from each other and the end of the walk. 3 of the pictures are 13 inches wide, one in 20 inches wide, and the wall is 7 feet across. How far apart do the pictures need to be
Answer:
5 s + (3 * 13) + 20 = 7 * 12
Step-by-step explanation:
A teacher has 36 students who were randomly assigned to 6 rows of 6 desks. She wants to survey the students
about the homework policy. Which of the following uses cluster sampling?
O Roll a fair number cube. Use the number rolled to pick a row of students. Survey every student in that row.
List the students according to their grade in the class. Survey one A student, one B student, etc.
For each row, flip a coin. If it is heads, survey all the boys in that row. If it is tails, survey all the girls in that row.
O Select a student by rolling a fair number cube twice. The first roll gives the row number, and the second roll gives
the seat number. Then repeat.
Answer:
A
Step-by-step explanation:
Edge 2021
The teacher is using a number cube to select a row of students and then surveys every student in that row, which fits the definition of cluster sampling.
What is the sampling distribution?In statistics, sampling distribution refers to the study of numerous random samples drawn from a particular population depending on a specified property. The gained data paint a clear notion of the changes in the likelihood of the outcomes determined.
Cluster sampling is a type of sampling technique in which a group or cluster of units is selected from the population and then all units within the selected clusters are included in the sample.
In this case, the teacher is using a number cube to select a row of students and then surveying every student in that row, which fits the definition of cluster sampling.
Thus, the correct answer would be an option (A).
To learn more about the sampling distribution click here:
https://brainly.com/question/29375938
#SPJ2
My grandma can beat you in a boxing match and she is 98
12345
Answer:
I can believe it. she stronk
The Richardson family is out to dinner at their favorite restaurant. The bill comes to $28.85 How much money should they leave for the bill and a 20% tip? Please explain step by step
Find my interest if I invest $450 at 8% for 3 years compounded semi-annually.
Answer:
The final balance is $571.61.
The total compound interest is $121.61.
Step-by-step explanation:
hope this helps!
Where do I put one set of parentheses in this equation?
Answer:
You could put a set of parentheses around [tex]8^{2}[/tex] ÷ [tex]4[/tex]
Step-by-step explanation:
Division or multiplication (depending on which one is in the equation. In our case, it's division) always has to be solved first.Therefore, you would put your parentheses around [tex]8^{2}[/tex] ÷ [tex]4[/tex]I hope this helps!
I NEED ASAP DUE IN 20 MINS
Answer:
y = 45 / 2x + 50
Step-by-step explanation:
The best equation for the line of the best fit would be y = 45 / 2x + 50.
The slope would be 45 / 2 and the y-intercept would be ( 0 , 50 ).
I used the points, ( 0 , 50 ) and ( 4 , 140 ) to get the equation, slope, and the y-intercept.
I used those points because they were the most accurate ones that I know for now.
Also, remember the formula is, "y = mx + b."
la pregunta en la imagen
Answer:
216mx meters
Step-by-step explanation:
m is in minutes so convert it in hours = 60m hrs
Speed is in metres per second, convert it in kilometers per hour= 18x/5
Now we’ve time and speed, put it in the formula
Distance = speed x time
= 18x/5 x 60m
= 216mx meters
Hope it helps
If you pay $7 for 3 tickets how much would 24 tickets cost?
Answer:
24 tickets would cost about $55.92
Step-by-step explanation:
To solve this equation I decided to figure out how much one ticket cost. I divided 7 by 3 and got 2.333333 I rounded that to one ticket costing $2.33. I then multiplied 2.33 by 24. 24 x 2.33= 55.92.
The reason I multiplied 24 by 2.33 is because the cost of one ticket is $2.33 so if I wanted to buy 24 tickets, I would have to multiply in order to find out the total cost.
I hope that this answer helped :D
Answer:
24 tickets would cost $56
Step-by-step explanation:
You would Convert it to a decimal by dividing the numerator by the denominator. 7/3*24=$56
3 tickets cost=$7
1 ticket cost= 7/3=$7/3
what is 1+1
I NEED HELP
Answer:
2
Step-by-step explanation:
1+1
2
This question is so hard
Any number times one equals itself, and any number multiplied by two equals itself plus itself, so 1*2=2 and 1*2=1+1. The transitive property of equality states that if x=y and y=z then x=z. Since both 1+1 and 2 are equal to 1*2, they must be equal to each other, so 1+1=2.
The answer is 2
It takes a bear 9 more days to eat a barrel of honey alone than it takes the bear and a second bear to eat the barrel of honey together. It takes the first bear 7 fewer days to eat a barrel of honey alone than it takes the second bear to eat a barrel of honey alone. In how many days can the two bears eat a barrel of honey together?
Answer:
it takes the bears 12 days to eat honey together.
Step-by-step explanation:
1/x+9+1/x+16=1/x
(solve this using cross multiplication)
= x^2 = 144
x=12
The number of days that it takes for both of the considered bears to eat a barrel of honey together is 12 days.
How are number of people to time needed to complete a task related?More people to do a task means less time it will take.
Less people to do a task means more time it will take.
Thus, they are inversely related.
We can define a constant as "Manpower" needed for doing that specific work.
Each worker has his/her own strength. That strength is applied per unit of time.
Let we define:
Manpower needed for a work = time taken for that work × strength used for that work per unit of time
(we used multiplication as it represents linear use of strength to finish the task, so using that strength for a finite units of time means you stacked up your strengths that many times to finish that work)
Here, we have:
Instead of people, here we consider bears.Work in consideration = eating honey out of a considered barrel (assuming all barrels considered will have same amount of honey)Assume that:
Strength of first bear (call it bear A) for eating honey = S per day (as unit of time is a day here).Strength of second bear (call it bear B) for eating honey = T per dayManpower the work needs be M (assume)Time needed by bear A to complete the work = 'x' daysTime needed by bear B to complete the work = 'y' days.Then, we get:
Manpower needed for a work = time taken for that work × strength used for that work per unit of time
[tex]M = x \times S\\M = y \times T[/tex]
If bear A and bear B both do the work together, then their strenghts will add up.
That means, the combined strength would be S + T per day
The manpower the work needs is still M, therefore, the time needed is:
[tex]M = \text{Time needed} \times (S + T)\\\\\text{Time needed} = \dfrac{M}{S+T}[/tex]
This is the time needed for both bears to do the work together.
Also, it is given that:
It takes a bear 9 more days to eat a barrel of honey alone than it takes the bear and a second bear to eat the barrel of honey together.
or
Time needed by bear A to do work = 9 + time needed by both bears to do the work
or
[tex]x = 9 + \dfrac{M}{S + T}[/tex]
Also, it is given that:
It takes the first bear 7 fewer days to eat a barrel of honey alone than it takes the second bear to eat a barrel of honey alone.
or
Time taken by bear A to do the work = Time taken by bear B for that work - 7 days
or
[tex]x = y - 7[/tex]
Thus, we got these equations:
[tex]M = S \times x\\M = T \times y\\\\x = \dfrac{M}{S + T} +9\\\\x = y - 7[/tex]
call them first, second, third and fourth equation as per their ordering.
From the first and second equation, we get:
[tex]S = \dfrac{M}{x}\\\\T = \dfrac{M}{y}[/tex]
Putting these values in the third equation, we get:
[tex]x = \dfrac{M}{M/x + M/y} + 9\\\\\\x = \dfrac{xy}{x+y} + 9\\\\(x-9)(x+y) = xy\\x^2 -9x -9y + xy = xy\\x^2 -9x = 9y[/tex]
From the fourth equation, we know that:
[tex]x = y - 7[/tex]
or [tex]y = x +7[/tex]
Putting this value of y in the equation [tex]x^2 -9x = 9y[/tex], we get:
[tex]x^2 -9x = 9(x+7)\\x^2 -9x = 9x + 63\\x^2 -18x -63 =0\\\\x^2 -21x + 3x -63 = 0\\x(x-21) + 3(x - 21) = 0\\(x+3)(x-21) = 0\\(x+3) = 0, (x-21) = 0\\x = -3, x = 21[/tex]
'x' represents time in number of days. So it cannot be negative.
Thus, the value of x obtained is 21.
Also, we need: Time needed for both the bears to do the work together.
This time is the value of [tex]\dfrac{M}{S+T}[/tex], which is equal to [tex]x - 9[/tex] days (from the third equation)
Thus, the time needed for both the bears to do the work together = [tex]x-9 = 21-9 = 12 \; \rm days[/tex]
Thus, the number of days that it takes for both of the considered bears to eat a barrel of honey together is 12 days.
Learn more about work and time here:
https://brainly.com/question/1063042
#SPJ2
Write an expression that
represents the sum of rand
7.
Answer:
r + 7
Step-by-step explanation:
Answer: r + 7
Good Luck!
Six less than twice a number x is four
Answer:
2 x − 6
Explanation:
"Six less than.." means "Subtract 6 from".
Do not confuse this with "Six less..." which means "Subtract from 6".
Confusing, I know.
We know that "Double a number" means
2 x , where x is your mystery number.
Therefore, we have:
2 x − 6 , which translates to "6 less than 2x" or "6 less than twice a number"
Please help, I'm in a test! Question is in the image attached! if you think you could help me out more, let me know and I'll post more questions like this!
Answer:
180° (in place of blank)
Step-by-step explanation:
GIVEN :-
∠D = 127°∠A = 75°PROCEDURE :-
∠C & ∠D are linear pair. (∵ They lie on same line)
⇒ ∠C + ∠D = 180°
⇒ ∠C = 180° - 127°
In a triangle , sum of its all interior angles equals to 180° (which is also known as "Angle Sum Property). So,
∠A + ∠B + ∠C = 180°
⇒ 75° + ∠B + (180° - 127°) = 180°
⇒ ∠B = 180° - 75° - (180° - 127°)
Answer:
180%
Step-by-step explanation:
took the test got it right on the test
Point NN is located at (-2,-6)(−2,−6) on the coordinate plane. Point NN is reflected over the yy-axis to create point N'N ′ . Point N'N ′ is then reflected over the xx-axis to create point N''N ′′ . What ordered pair describes the location of N''?N ′′ ?
Given:
Coordinates of point N = (-2,-6)
Point N is reflected over the y-axis to create point N ′.
Point N' is then reflected over the x-axis to create point N''.
To find:
The ordered pair that describes the location of N''.
Solution:
The coordinates of point N are (-2,-6). Point N is reflected over the y-axis to create point N ′.
[tex](x,y)\to (-x,y)[/tex]
[tex]N(-2,-6)\to N'(2,-6)[/tex]
Point N' is then reflected over the x-axis to create point N''.
[tex](x,y)\to (x,-y)[/tex]
[tex]N'(2,-6)\to N''(2,6)[/tex]
Therefore, the ordered pair for point N'' is (2,6).
Answer:
(-6,2)
Notice that the xx-coordinate and the yy-coordinate change sign when LL is reflected over the xx-axis and then reflected over the yy-axis.
HELP PLEASE I WILL BE SO GRATEFUL FOR YOU
Answer:
Step-by-step explanation:
A: Transitive
B: Also transitive
C: Reflexive
D: Addition Property of Equality
Hope it helped! There are resources online that you can use to see all of the theorems for geometry.
Violet answered 166 questions correctly on her multiple choice science final that had
a total of 200 problems. What percentage of questions did Violet answer correctly?
Answer:
83%
Step-by-step explanation:
No. of questions answered correctly = 166
Total no. of questions = 200
Percentage of questions answered correctly = (166/200)*100 = 83%
Kareem is a salesman at Best Buy. On each sale, he earns a commission of 12%. One of his customers bought a TV for $550 and a video game for $65. How much did Robert earn in commissions from these sales?
Answer:
He made $51.25
Step-by-step explanation:
550+65=615
12% of 615 is 51.25 so your answer is 51.25
Fill in the rest of the table
Find the equation (in terms of
x
) of the line through the points (-1,0) and (4,5)
Calculate the volume of this cone.
Give your answer to 1 decimal place.
11 cm height
6 cm across
Answer:
6m
Step-by-step explanation:
Jjsjsjjs
Write the equation of the line, in slope intercept form, that goes through the points (6,4) and (-3,-5)
Answer:
y = x - 2
Step-by-step explanation:
Find the slope using rise over run
(y2 - y1) / (x2 - x1)
Plug in the points:
(y2 - y1) / (x2 - x1)
(-5 - 4) / (-3 - 6)
-9 / -9
= 1
Using y = mx + b, plug in the slope and a point to solve for b:
y = mx + b
4 = 1(6) + b
4 = 6 + b
-2 = b
Plug in the slope and b to y = mx + b
y = 1x - 2
y = x - 2
So, the equation of the line is y = x - 2
which of the following word problems can be solved using the inequality 9x+18>72
Step-by-step explanation:
In this question, I see an outlier. Most of the time you may want to solve the inequality, but check how the answers are phrased in relation to the inequality. The equation shows a > symbol.
Answer A states, "save at least $72." If the inequality used a greater than or equal to sign this could work, yet it uses a > symbol. I would go with B & C, if you haven't chosen already.
Diego bought a bicycle that cost $180. In addition he had to pay 8% sales tax on it.
What was the amount of sales tax Diego paid?
Answer:
$14.40
Step-by-step explanation:
$180 * 8% ( Or 0.08 )
Factor the polynomial y^5+32
Step-by-step explanation:
Please refer to the attachment
what's the simplified version?
Answer:
D) [tex]x^{12}[/tex]
Step-by-step explanation:
Note that all the base are the same (the variable x). You are multiplying the three like terms together. Simply add the powers together:
[tex]x^{3} * x^{4} * x^{5} = x^{3 + 4 + 5} = x^{12}[/tex]
D) [tex]x^{12}[/tex] is your answer.
~
Find KJM
I NEED HELP
Answer:
Angle kjm is 56 °
you equate 7x with 3x +16
ie
3x + 16 = 7x
Solve.please help me can’t get it
Answer:
x=3
Step-by-step explanation:
[tex] \frac{x - 2}{5} = \frac{1}{5} [/tex]
[tex]x - 2 = 1[/tex]
[tex]x = 1 + 2[/tex]
[tex]x = 3[/tex]
Can someone please help me
Answer:
474.93
Step-by-step explanation:
V= 3.14*r^2*h