PLEASE HURRY!!!!!!!
Ms. Green, a physical education teacher in a middle school, conducted a survey to find out what the favorite athletic activity of the students in the middle school was. she chose every 10th student's name on and alphabetical list of all studentsin the school to make up a sample. Was this a random sample and if so, which sampling method did she use?

A. Yes, she used simple random sampling.
B. Yes, she used systematic random sampling.
C. No, she used stratified random sampling.
D. No, she did not choose a random sample.

Answers

Answer 1

Answer:

B. Yes, she used systematic random sampling

Explanation :

Systematic random sampling is method of sampling use in term of finding the the percent of a given population to find the final sample.


Related Questions

Which point is the same distance from the y-axis as point G but on the opposite side of the y-axis?

Answers

The point (6, 4) is the same distance from the y-axis as point G(-6, 4) but on the opposite side of the y-axis

What is an equation?

An equation is an expression that shows the relationship between two or more numbers and variables.

Point G on the coordinate plane is at G(-6, 4).

The point (6, 4) is the same distance from the y-axis as point G(-6, 4) but on the opposite side of the y-axis

Find out more on equation at: https://brainly.com/question/2972832

#SPJ1

I’m not sure what to fill in

Answers

Answer:

(0, 5)

(1, 6)

(4, 7)

(9, 8)

Step-by-step explanation:

y = √x + 5

y = √0 + 5

= 5

y = √1 + 5

= 6

y = √4 + 5

= 2 + 5

= 7

y = √9 + 5

= 3 + 5

= 8

What would be the answer to this ?

Answers

The factorized form of the expression ( 2x² - x - 6 ) is ( 2x + 3 )( x - 2 ).

Hence, the missing values are 3 and 2 respectively.

What is the factorized form of the expression?

Given the expression: 2x² - x - 6

First, we factor -1 out of -x

2x² - x - 6

2x² -1(x) - 6

Not that, -1 can also be written as 3-4

2x² + (3-4)x - 6

2x² + 3x - 4x - 6

Next, we group the first two terms and the last two terms and factor out the GCF

(2x² + 3x) - 4x - 6

x(2x + 3) - 2( 2x + 3)

Factor out the GFC which is ( 2x+3 )

We have; ( 2x + 3 )( x - 2 )

The factorized form of the expression ( 2x² - x - 6 ) is ( 2x + 3 )( x - 2 ).

Hence, the missing values are 3 and 2 respectively.

Learn  more about factorization here: https://brainly.com/question/11994062

#SPJ1

7x⁴ + 3x² - 4 X= -2

Answers

Answer:

Step-by-step explanation:

Determine the standard form of the equation for the circle with center (h,k) =( -5, 1/2) and radius r=1

Answers

Answer:

[tex](x + 5) ^{2} + {(y - \frac{1}{2}) }^{2} = 1[/tex]

Step-by-step explanation:

the formula of a circle is

[tex] {(x - h)}^{2} + {(y - k)}^{2} = {r}^{2} [/tex]

knowing the values of h, k, and r we can substitute them into the formula

knowing the

How many triangles can be formed
from two given angle measures and
the length of their included side?
None
One
Two
Infinite number

Answers

Answer:

B. One

Step-by-step explanation:

Since the two angles are already given, the value of the third angle is already fixed. The third angle can be found by the sum of both angles subtracted from 180. Since 2 angles and lengths are already given, there can only be 1 triangle.

Hope this helps!

If not, I am sorry.

21. Write an equation in point-slope form for the line through the given point with the given slope.
3
(4, -6);m=3/5

Answers

Answer:

y + 6 = [tex]\frac{3}{5}[/tex] (x - 4)

Step-by-step explanation:

the equation of a line in point- slope form is

y - b = m(x - a)

where m is the slope and (a, b ) a point on the line

here m = [tex]\frac{3}{5}[/tex] and (a, b ) = (4, - 6 ) , then

y - (- 6) = [tex]\frac{3}{5}[/tex] (x - 4) , that is

y + 6 = [tex]\frac{3}{5}[/tex] (x - 4)

Karissa is a college basketball player who makes 85% of her free throws. If Karissa takes 94 free throws in the upcoming season, what is the mean of the number of free throws made

Answers

The mean of the number of free throws made is 79.9

The standard deviation of throws is 3.46

Karissa is a college basketball player who makes 85% of her free throws. If Karissa takes 94 free throws then,

For binomial distribution B(94,0.85)

n  = no. of throws

P = probability of the success

mean = np

         = 94*0.85

         = 79.9

standard normal = (npq)^0.5

                            = (94*0.85*0.15)^0.5

                            = 3.46

the mean of the number of free throws made is 79.9

and standard devation of trows is 3.46

Formula used:

mean = np

standard deviation = (npq)^0.5

Learn more about Mean:

https://brainly.com/question/4313883

#SPJ4

Can someone help me with this?

After the storm, the small tree in my neighbor's yard was
leaning. To keep it from falling, we nailed a 6-ft strap into
the ground 2 ft from the base of the tree. We measured 5
feet along the tree and attached the other end of the strap
to the tree. What degree was the tree leaning? Round to
the nearest degree. Enter a number answer only.
Strap
Distance from base of tree
Strap attached this
distance above ground.

Answers

The degree the tree was leaning is 70 degrees.

How to find an angle of a triangle?

Using cosine law,

c² = a² + b² - 2ab cos C

Therefore,

6² = 2² + 5² - 2 × 2 × 5 cos C

36  = 4 + 25  - 20 cos C

36  = 29 - 20 cos C

36  - 29 = - 20 cos C

7 = - 20 cos C

cos C = 7 / - 20

cos C = -0.35

C = cos⁻¹ 0.35

C = 69.5126848853

C = 70 degrees.

Therefore, the degree the tree was leaning is 70 degrees.

learn more on triangle here: brainly.com/question/16350435

#SPJ1

An Internet service provider allows a certain number of free hours each month and then charges for each additional hour used. Wells, Ted, and Vino each have separate accounts. This month the total hours used by Wells and Ted was 105, and each used all of their free hours. Their total cost was . Vino used 105 hours by himself and had to pay . What is the number of cents charged for each extra hour

Answers

The internet service provider charges 40 cents for each extra hour used.

Also, he provides 40 hours of free service for every account.

Solved using linear equations.

Let the number of free hours provided by the internet service provider be x, and the charge for each extra hour be p cents.

Let the time consumed by Wells, Ted, and Vino be t1, t2, and t3 respectively.

Chargeable time used by Wells = t1 - x.

Cost for Wells = p(t1 - x).

Chargeable time used by Ted = t2 - x.

Cost for Ted = p(t2 - x).

Chargeable time used by Vino = t3 - x.

Cost for Vino = p(t3 - x).

Now, we are given that Wells and Ted, in total used 105 hours, that is, t1 + t2 = 105.

The cost for them together is $10 or 1000 cents.

This can be shown as the linear equation:

p(t1 - x) + p(t2 - x) = 1000.

or, p{(t1 - x) + (t2 - x)} = 1000,

or, p{(t1 + t2) - 2x} = 1000,

or, p(105 - 2x) = 1000,

or, p = 1000/(105 - 2x) ... (i).

Time consumed by Vino is given as 105 hours, thus, t3 = 105.

The total cost to Vino is given as $26 or 2600 cents.

This now can be shown as the linear equation:

p(t3 - x) = 2600,

or, {1000/(105 - 2x)}(105 - x) = 2600 {Substituting t3 = 105, and p = 1000/(105 - 2x)}.

This is the required linear equation in one variable.

It can be solved as follows:

{1000/(105 - 2x)}(105 - x) = 2600,

or, 105000 - 1000x = 273000 - 5200x,

or, 5200x - 1000x = 273000 - 105000,

or, 4200x = 168000,

or, x = 168000/4200 = 40.

Substituting x = 40 in (i), we get:

p = 1000/(105 - 2x),

or, p = 1000/(105 - 2(40)),

or, p = 1000/(105 - 80),

or, p = 1000/25,

or, p = 40.

Thus, the internet service provider charges 40 cents for each extra hour, and he provides 40 hours of free internet on every account.

The provided question is incomplete. The complete question is:

"An Internet service provider allows a certain number of free hours each month and then charges for each additional hour used. Wells, Ted, and Vino each have separate accounts. This month the total hours used by Wells and Ted was 105, and each used all of their free hours. Their total cost was $10. Vino used 105 hours by himself and had to pay $26. What is the number of cents charged for each extra hour?"

Learn more about linear equations at

https://brainly.com/question/14312127

#SPJ4

Please help
Please help
Please help
Please help

Answers

Answer:

57 yd²

Step-by-step explanation:

See image

-8-3k
2
= 11

How do I do this problem?

Answers

Answer:

k = - 3 1/6

Step-by-step explanation:

-8-3k(2)=11

-8-6k = 11

8 - 8 - 6k = 11 + 8

-6k = 19

-6k/-6 = 19/-6

k = -3.16667

k = -3 1/6

Answer: -31/6
This is answer for you

A triangle can be formed having side lengths $4,$ $5,$ and $8.$ It is impossible, however, to construct a triangle with side lengths $4,$ $5,$ and $10.$ Using the side lengths $2,$ $3,$ $5,$ $7,$ and $11,$ how many different triangles with exactly two equal sides can be formed

Answers

14  triangles with exactly two equal sides can be formed

The triangles will be isosceles as there have to be 2 equal sides.

The possible triangles are :

2 2 3      3 3 2        5 5 2       7 7 2         11  11  2

             3 3 5        5 5 3       7 7 3         11  11  3

                             5 5 7       7 7 5         11  11  5

                                            7 7 11       11  11  7

So 14   triangles are possible

To know more about triangles visit: https://brainly.com/question/1058720

#SPJ4

Given: c= 11 and b=5 Then the m Round to the nearest degree. Enter a number answer only.

Answers

Answer:

62.9643082106 degrees

Step-by-step explanation:

First, notice that triangle ABC is a right triangle. This allows us to use SIN, COS, and TAN to find the measure of angle A. Recall SOH CAH TOA, so SIN = OPPOSITE / HYPOTENUSE, COS = ADJACENT / HYPOTENUSE, and TAN = OPPOSITE / ADJACENT.

Looking at angle A, sides c and b correspond to hypotenuse and adjacent respectively. Therefore, we can use COS to set up an equation.

cos(A) = b/c

cos(A) = 5/11

A = arccos(5/11)

A = 62.9643082106 deg

!!!!!! please help!!!!!

select the correct answer from each drop-down menu.
a locker requires a three-digit code to open the lock. the code must contain one letter and two numbers, and no letter or number car
repeated. you can choose from among four letters, a, b, c, and d, and two numbers, 5 and 6.
the size of the sample space is
if a code is chosen at random, the probability that it has a letter that immediately follows an odd number is
if a code is chosen at random, the probability that is in the code but is not in the first position is

Answers

The likelihood that it contains a letter just after an odd number is 1/2 . D's likelihood of being in the code but not at the first position is 1/4.

What is probability?

The ratio of the number of outcomes in an exhaustive set of equally likely outcomes that produce a given event to the total number of possible outcomes.

A three-digit code is needed to unlock the lock on a locker. One letter and two numbers are required for the code, and neither a letter nor a number may be repeated.

Four letters, A, B, C, and D, as well as two numerals, 5 and 6, are available for selection.

The sample space has a size of (8, 16, 20, and 24)

If a random code is chosen,

The likelihood that it contains a letter after an odd number (1/8, 1/6, 1/3, 2/5, or 2/3)

= 1/2

If a random code is chosen,

Probability (1/8, 1/6, 1/3, 2/5, 2/3) that D is in the code but not at the first position.

= 1/4

Learn more about probability

brainly.com/question/12905909

#SPJ4

A card is picked at random from a standard deck of cards. what is the sample space for this experiment if you were trying to find p(face card)? a. sample space = 12 b. sample space = startfraction 3 over 13 endfraction c. sample space = startfraction 12 over 52 endfraction d. sample space = 52

Answers

The sample space neeeded for the experiment to find the face cards is 52.

Given there is a standard deck of cards.

We have to finf the sample space needed for the experiment of finding the probability of face cards.

Probability is the chance  of happening an event among all the events that are possible. It lies between 0 and 1. The probability is the number of items divided by the total items.

Sample is a part of population. It is studied when the study of whole population is difficult to do.

Cards in a deck=52

Number of face cards is 12.

When we  draw a card from the deck then it might be a face card or not. So we have to draw all the cards of a standard deck because it might possible that face card is present at the end of deck.

Hence the sample size needed in the experiment is 52.

Learn more about sample at https://brainly.com/question/24466382

#SPJ4

Which statements are true for the functions g(x) = x2 and h(x) = –x2 ? Check all that apply.
For any value of x, g(x) will always be greater than h(x).
For any value of x, h(x) will always be greater than g(x).
g(x) > h(x) for x = -1.
g(x) < h(x) for x = 3.
For positive values of x, g(x) > h(x).
For negative values of x, g(x) > h(x).

Answers

Answer:

if x=0 then they have same value

1st and 2nd options are out

for x=-1

g(-1)=1

h(-1)=-1

3rd is true

4th

false

for all values except zero, g(x)>h(x)

correct ones are

ANSWER: g(x) > h(x) for x = -1.

For positive values of x, g(x) > h(x).

For negative values of x, g(x) > h(x).

A measure of the strength of the relationship between two variables is referred to as the?

Answers

A measure of the strength of the relationship between two variables is referred to as the correlation coefficient.

What is the correlation coefficient?

To gauge the strength of the linear link between two variables, correlation coefficients are used.

For a value of correlation coefficient less than zero denotes a negative association, while a value greater than zero denotes a positive relationship.

Zero correlation coefficient means there is no correlation between the two variables under comparison.

A crucial idea in building diversified portfolios that may better resist portfolio volatility is the concept of a negative correlation, often known as an inverse correlation.

Since calculating the correlation coefficient takes time, it is frequently done by entering data into a calculator, computer, or statistics application.

Learn more about correlation coefficient here:

https://brainly.com/question/4219149

#SPJ4

Find an equation of rational function that has vertical asymptotes at x = 3 and x =
-5, horizontal asymptote at y = 0, and y intercept of 1.

Answers

The rational function that meets all the conditions is:

[tex]f(x) = \frac{-15}{(x - 3)*(x + 5)}[/tex]

How to find the rational function?

A rational function is of the form:

[tex]f(x) = \frac{p(x)}{q(x)}[/tex]

As the horizontal asymptote is at y = 0, we know that the numerator can't depend on x, so it is just a constant.

p(x) = a

And we want to have two vertical asymptotes at x = 3 and x = -5, then q(x) becomes zero at these values, so we have:

q(x) = (x -3)*(x + 5)

At this point, the function is:

[tex]f(x) = \frac{a}{(x - 3)*(x + 5)}[/tex]

Finally, we know that the y-intercept is 1, then we need to solve:

[tex]f(0) = 1 = \frac{a}{(0 - 3)*(0 +5)} = \frac{a}{-15} \\\\-15 = a[/tex]

Then we conclude that our function is:

[tex]f(x) = \frac{-15}{(x - 3)*(x + 5)}[/tex]

If you want to learn more about rational functions:

https://brainly.com/question/1851758

#SPJ1

Part a: write an algebraic expression for 6 more than 7 times a number. (5 points)

part b: write a verbal expression for 3(n + 8). (5 points)

( will pick brainliest. please help, if i dont get a good grade on this, i might fail. )

Answers

Part A

If the number is n, then the expression is 7n+6.

Part B

Three times the sum of a number and 8.

i need help fast for both please

Answers

1. 4/(4+3+3+1+1)=4/12
=1/3

2. 2/12
=1/6

Hope this helped :)

The graph is translated 3 up, reflected across the x-axis, and is narrower than the graph y = x^2.

Answers

If the graph is translated 3 up, reflected across the x-axis, and is narrower than the graph y = x², we have; y = -(x² + 3)

How to carry out translation of a function?

We are given the original equation of the function as;

y = x²

Now, when we translate the graph 3 units upwards, it means we add 3 units to the function to get;

y = x² + 3

Now, when we reflect across the x-axis, it means we just change the sign of the function to get;

y = -(x² + 3)

Read more about Function Translation at; https://brainly.com/question/26238840

#SPJ1

Emily, Dylan and Ryan sat a Maths test.

The test was marked out of 125

Emily got 1/5 of the 125 marks.

Dylan got 15% of the 125 marks.

Ryan got 23 out of 125 marks.

Who got the highest mark?

Answers

Emily got the highest mark , she got 25 out of 125, Dylan got 18.75 out of 125
emily got the most marks, 1/5=20%, 20 percent of 125 is 25. 15% of 125 is 18.75.

A satellite television receiver is a parabolic dish with an equation of y=1/32 x^2

Answers

Step-by-step explanation:

The equation of a parabola that relates it focus is

[tex] {x}^{2} = 4py[/tex]

So here, we isolate x^2.

[tex]y = \frac{1}{32} {x}^{2} [/tex]

[tex]32y = {x}^{2} [/tex]

Next, we factor out 4.

[tex] {x}^{2} = 4(8)(y)[/tex]

Our p=8 so this tells us the distance of the vertex to the focus.

Solve each triangle – find any missing side and angle measures. Round answers to the nearest tenth.

Answers

Answer:

30 degrees

Step-by-step explanation:

180-56-90=34

34 rounded off to nearest tenth is 30


how much will it cost for him to pull the fence around his entire property? Pls help asap this is due in like 2 hrs

Answers

Answer:

$1265

Step-by-step explanation:

the area (A) of a rectangle is calculated as

A = length × width

here length = 40 and  A = 2800 , then

2800 = 40 × width ( divide both sides by 40 )

70 = width

the perimeter (P) is calculated as

P = 2(length + width) = 2(40 + 70) = 2 × 110 = 220 ft

cost = 220 × $5.75 = $1265

Answer:

$1265

Step-by-step explanation:

area = length × width

area = 2800

length = 40

2800 / 40 = 70

So, the width of the lot is 70ft , and the length is 40

when building a fence, it would surround the entire property's perimeter (which is the length of the outside edges/sides of the shape added together)

so, it would need to cover 70 + 40 + 70 + 40

(the perimeter = 70 + 40 + 70 + 40)

= 220

so, if each foot costs 5.75, we can multiply 220 × 5.75 to find the cost:

220 × 5.75 = 1265

So, this will cost him $1265

hope this helps! have a lovely day :)

what graph represents −3x+1≤10

Answers

The solution of the inequality is x ≥ -3 and the graph is shown below

Graph of inequalities

From the question, we are to determine the graph that represents the given inequality

The given inequality is

−3x + 1 ≤ 10

First, we will solve the inequality

−3x + 1 ≤ 10

Subtract 1 from both sides

−3x +1 -1 ≤ 10 - 1

−3x ≤ 9

Divide both sides by -3 and flip the sign

x ≥ -3

The graph of the inequality is shown below

Learn more on Graphing inequalities here: https://brainly.com/question/13053003

#SPJ1

A supplier bought a scanner for rs 35000 and sold it for rs 47460with 13% vat. Find the profit or loss percent of supplier

Answers

The profit percent of supplier is 17.972 %

How to determine the profit or loss percent of supplier?

The given parameters are:

Cost price = Rs 35000Selling price = Rs 47460VAT = 13%

Start by calculating the selling price without VAT

Selling price = Rs 47460 * (1 - 13%)

Evaluate

Selling price = Rs 41290.2

The percentage profit is then calculated as:

Percentage profit = (Selling price - Cost price)/Cost price * 100%

This gives

Percentage profit = (41290.2 - 35000)/35000 * 100%

Evaluate

Percentage profit = 17.972 %

Hence, the profit percent of supplier is 17.972 %

Read more about percentage profit at:

https://brainly.com/question/19104371

#SPJ1

Leena consumes 400 calories at breakfast and 350 calories at lunch. She consumes StartFraction 2 Over 3 EndFraction. of her daily calories at dinner. If x represents the calories consumed at dinner, which statements describe the situation? Check all that apply.
Leena consumed 1,500 calories at dinner.
The equation StartFraction 2 Over 3 EndFraction left-parenthesis x plus 400 plus 350 right-parenthesis equals x.(x + 400 + 350) = x can be used to model the situation.
Leena consumed 500 calories at dinner.
The equation StartFraction 2 Over 3 EndFraction left-parenthesis x right-parenthesis equals x left-parenthesis 400 plus 300 right-parenthesis.(x) = x(400 + 300) can be used to model the situation.
Leena consumed 1,000 calories at dinner.
The equation StartFraction 2 Over 3 EndFraction x left-parenthesis x plus 400 plus 350 right-parenthesis equals x.x(400 + 300) = x can be used to model the situation.

Answers

The statement is " It was said that the circumstance was represented by the fact that the supper meal has 1500 calories."

Which statements describe the situation?

Generally, the equation for Calories consumed  is  mathematically given as

x = 2/3 of daily calorie

The calories consumed during breakfast and lunch

Cbl=1 - 2/3

Cbl = 1/3

Hence, calories consumed per day

1/3 * cc = 750

cc/3 = 750

cc = 750 * 2

cc= 2250 calories

Calories consumed at dinner

cd= (2250 - (750))

cd= 1500 calories

In conclusion, It was said that the circumstance was represented by the fact that the supper meal has 1500 calories.

Read more about calories

https://brainly.com/question/22374134

#SPJ1

Jeff has 2 hamsters and 1 gerbil. What is the ratio of gerbils to hamsters?

Answers

Answer:

1:2

Step-by-step explanation:

Answer:

1:2

Step-by-step explanation:

Other Questions
1. A supersonic airplane is flying horizontally at a speed of 2610 km/h. What is the centripetal acceleration of the airplane, if it turns from North to East on a circular path with a radius of 80.5 km?2. How much time does the turn take?3. How much distance does the airplane cover during the turn? You are raising up a big bucket of water from a 25.9 m deep well. The combined mass of the water and the bucket is 13.9 kg. The bucket is attached to a heavy duty steel chain. The mass of the chain is 19.3 kg. 1. How much work do you perform during the lifting process?2. If it takes 1.75 minutes for you to raise the bucket of water out of the well, then what was your average power? The Work in Process Inventory account of a manufacturing company has a $3,200 debit balance. The company applies overhead using direct labor cost. The cost sheet of the only job still in process shows direct material cost of $1,400 and direct labor cost of $800. Therefore, the amount of applied overhead is: Information on the native rulers who supported the British during the revolt of 1857. Why did they supported the British? Come up with a description for the chaparral biome. g Try to think of an example in which you coped with a particular stressor by using problem- focused coping. What was the stressor? What did your problem-focused efforts involve? Were they effective? Students that want to improve their reading fluency should practice independent reading.TrueFalse Is it significant that ken f. Washington had a urinary catheter in place for 6 days while he was in the hospital?. What kinds of burdens would a prophet or a seer a bear Solve for the missing item in the following. (Do not round intermediate calculations. Round your answer to the nearest whole percent.) Principal 5,000 time 6 months simple interest 300Rate? Russian General Potemkin had fake villages built to fool Empress Catherine the ________travelingalong a nearby road.O Great, she wasO Great; and she wasO Great, who wasO Great was Q. 2 Find the HCF of 16, 44 and 84 by listing the factors. What could improve the peer review process? which one of these excerpts from mark twains life on the mississippi best shows that the story is told by a subjective narrator Challenges for new leaders since the global information-based revolution include: Multiple select question. learning about world quality standards manufacturing jobs are the only ones that pay well that the service era is coming to a close training employees takes too much time Paul spent Saturday picking up litter on a nearby beach with the biology club. At the end of a very long, hot day, one of the other members asked him to come with the group that evening to catch some invasive lizards as part of a science project. Paul hates lizards. Paul is more likely to agree to the second request now, after spending the day picking up litter, because of __________. OSU Mini-scenario: Assume the following: A Media Services employee at an on-campus classroom is replacing the projector bulb during class time. This has put class discussions/lecture on hold, and that students in the class are not in favor of such an interruption. Then, the students are experiencing: A(n)[ ] is a person who is not actively involved in a nations armed forces Ovulation is triggered by peak concentrations of which peptide secreted into the blood A. estrogen B. LH C. ACTH D. FSH E. progesterone The fit line equation for the scatterplot is y = -2.61x+152.51, where x is variable 1 and y is variable 2. according to the equation, what is the expected value of y when x-value is 45?