PLZZZZ HELP AMEDIENTLY
A researcher places a radio advertisement offering $32 in exchange for participation in a short study. The researcher accepts the first nine people who respond to the advertisement. Which of the following statements is true about the sample?

It is a valid sample because the first nine people were selected to participate.
It is not a valid sample because it is not a random sample of the population.
It is a valid sample because money was offered to participants.
It is not a valid sample because it is only a short study.

Answers

Answer 1

Answer:

I am not sure if I am right, but in my opinion, it is a valid sample, since they are participating and getting paid, so I would personally go for the third option, but the decision is on you.


Related Questions

x=4/2, y=2
x=8, y=2
x=8, y=4
x=472,y=4
x=4, y=42

Answers

Answer: x = 8 y = 4 or C

Step-by-step explanation:

solve the equation 243×=73, where × is the base of the number.

Answers

243x/243 = 73/243
x= 73/243
x= 0.300412

The value of × that satisfies the equation 243× = 73 is approximately 0.6691.

To solve the equation 243× = 73, where × represents the base of the number, we need to determine the value of × that satisfies the equation.

We can start by rewriting the equation as an exponential equation:

243ˣ= 73

To solve for ×, we need to isolate × on one side of the equation. We can do this by taking the logarithm of both sides of the equation. Let's take the logarithm with base 10 (log) for simplicity:

log(243ˣ) = log(73)

Applying the logarithmic property, we can bring down the exponent × as a multiplier:

× * log(243) = log(73)

Now, we can solve for × by dividing both sides of the equation by log(243):

× = log(73) / log(243)

× ≈ 0.6691

Therefore, the value of × that satisfies the equation 243× = 73 is approximately 0.6691.

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When Cosmo wears his new shirt properly as shown below, the horizontal stripes form seven closed rings around his waist. This morning he buttoned his shirt incorrectly, as shown on the right. How many closed rings were there around Cosmo's waist this morning?

Answers

Answer:

6

Step-by-step explanation:

It is given that Cosmo bought a new shirt which have several horizontal strips printed on the shirt that forms horizontal rings when the shirt is buttoned up. When Cosmo rightly button up the shirts, the horizontal strips forms seven closed rings.

One day when Cosmo wrongly wear the shirt and wrongly buttoned up the shirt, the horizontal strips on the shirt did not matched properly.

So as seen from the figure, when Cosmo wrongly button up the shirt, the closed strips forms 6 horizontal rings around Cosmo's waist.

AREA OF A CIRCLE HELP PLS​

Answers

Answer:

254.34 in²

Step-by-step explanation:

Area of circle = [tex]\pi r^2[/tex]

d = 18 inches, so r = d/2 = 9 inches

Area = 3.14 * 9 * 9

= 254.34 in²

HOW TO DO THIS QUESTION PLEASE ​

Answers

First, you need to know how much they’re dilated.

To find that out you do:
15/10 = 1.5

So they’re dilated by 1.5cm

To find the value for y you do:
6•1.5 = 9

y = 9
Yeah what he said is right


Find the measure of

Answers

Answer:

16

Step-by-step explanation:

If u use a protracter it will work

Determine the solution to the equation. 2(9x - 6) = 6(3x - 2) + 2

A. Infinite
B. One Solution
C. No Solution​

Answers

The answer is bbbbbbbbb

What are some websites that someone does your math assignment for you help ASAP

Answers

Answer :

You can only search for answers or pay for someone to do your assignments

Annie earns $320 for 8 hours of work. At that rate, how long would she have to
work to earn $1,120?

Answers

Answer:

28 hrs

Step-by-step explanation:

in 8 hrs she earns $320,

so in 1 hr she earns $320/8=$40

no. of hrs she takes to earn $1120 is,

=1120/40= 28 hrs

Annie would need to work 28 hours to earn $1,120 at the same rate.

To determine how long Annie would have to work to earn $1,120 at the same rate, we can set up a proportion based on the given information.

Let's define:

x = the number of hours Annie needs to work to earn $1,120.

According to the information given, Annie earns $320 for 8 hours of work. This can be expressed as the rate: $320/8 hours.

We can set up the proportion as follows:

320/8 = 1120/x

To solve this proportion, we can cross-multiply and then solve for x:

320x = 8 * 1120

320x = 8960

Dividing both sides of the equation by 320:

x = 8960/320

x = 28

Therefore, Annie would need to work 28 hours to earn $1,120 at the same rate.

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Ken has 7 baseballs. Each baseball weighs 0.3 pound. Ken wants to use this

model to find the total weight of the baseballs. Each hundredths block in the

model represents 1 whole.

Use the drop-down menus to explain how Ken can use the model to find the total

weight of the baseballs. Click the arrows to choose an answer from each menu.

To represent the weight of one baseball, 0.3 pounds, Ken should shade 3

Choose...

To represent the weight of all of the baseballs, he should

shade this amount Choose... times. The shaded part of the model will represent

the expression Choose... The total weight of the baseballs is 7.3

pounds

My Progress

Answers

Answer:

2.1 pounds

Step-by-step explanation:

Given that :

Number of baseballs = 7

Weight of each baseball = 0.3 pounds

1 block = 0.1 pounds

Hence, each ball will represent 0.3 / 0.1 = 3 blocks

Hence, 3 blocks = 1 ball

7 balls will be : 3 * 7 = 21 blocks

Recall:

1 block = 0.1

Hence, 0.1 * 21 = 2.1

Therefore, the weight of the 7 balls = 2.1 pounds

Sam tested every 50th candy bar from the assembly line to make sure there were enough peanuts in each bar. He found 15% did not have enough peanuts
How many candy bars do not have enough peanuts if the factory produces 20,000 candy bars?
A 300 candy bars
OB. 15,000 candy bars
o C. 3,000 candy bars
O D. 500 candy bars

Answers

Answer:

C 3,000

Step-by-step explanation:

the step is you would take 15% of 20,000 candy bars

Anya rolls an octahedron labelled A A A B C C C C what is the probability the octahedron will land on each letter

Answers

Answer:

the probability the octahedron will land on A is 3/8

the probability the octahedron will land on B is 1/8

the probability the octahedron will land on C is 4/8 or 1/2

Step by Step explanation:

All u have to do to figure this out is to first count the total amount of letters and in this case there are 8. To find the probability of a specific letter, you have to count how many of that letter there is in the total of 8. For example the letter A's probability is 3/8 since there are 3 A's and 8 letters in total.

hope this helps!!

Hi please help me!! thanks

Answers

Answer:

3.2 x 10^13

Step-by-step explanation:

(8x10^4)(4x10^8)

reorder the terms using the commutative property

(8x4)x(10^4x10^8)

multiply

32x (10^4 x 10^8)

= 32 x 10^4+8

= 32 x 10^12

now convert to scientific notation

=3.2 x 10^13

HELP ME I BEGGGG THANK U PLEASE ITS DUE

Answers

Answer:

y=6x+24

Step-by-step explanation:

One way to recognize a ___ is to look for a line that divides the original image into two congruent parts.
A. line of symmetry
B. point of symmetry
C. center of symmetry
D. plane of symmetry

Answers

a because the line of symmetry is where the two parts of the image will meet

The correct option to look for a line that divides the original image into two congruent parts is called; A. Line of Symmetry

What is a Line of Symmetry?

The line of symmetry is defined as the axis or imaginary line that passes through the center of the shape or object and divides it into identical halves.

Now, from the question we see that the line divides the original image into two congruent parts which is the definition of line of symmetry.

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The money used in Jordan is called the
Dinar. The exchange rate is 1 Dinar for
every $1.40. Find how many dollars you
would receive if you exchanged 32.4
Dinars.

Answers

Answer:

$45.36

Step-by-step explanation:

1 dinar = $1.4

32.4=?

32.4*1.4

$45.36

. The product of two integers is -84. One of them is 4, find the other integer.​

Answers

Answer:

Answer :-

Product of two integers = - 84

One integer = 4

Other integer = x

[tex]4 \times x = - 84 \\ 4x = - 84 \\ x = \frac{ - 84}{4} \\ x = - 21[/tex]

⎆ The value of the other integer is - 21

What is the volume of the pyramid in the diagram?
9 cm
height = 3 cm
5 cm
S cm
OA 25 cm3
OB.
75 cm
O C.
105 cm
OD. 135 cm
E.
225 cm

Answers

Answer:

A. 25 cm^3.

Step-by-step explanation:

Volume = 1/3 * area of base * perpendicular height,

= 1/3 * 5^2 * 3

= 5^3

= 25.

The correct option is A. Volume of the pyramid is 25 cm³ which is option A.

What is the volume of the pyramid?

The volume of a pyramid is given by lbh/3. It is also given by the product of the base area and height of the pyramid and then divided by 3.

The base of the pyramid is in the form of a square as all sides are 5 cm. Find the area of the square that is the base area.

5×5=25 cm²

Now multiply 25 by the height of the pyramid which is 3 cm.

25×3=75 cm³

Divide 75 by 3 to find the volume of the pyramid.

75÷3=25 cm³

Thus, the volume of the pyramid is 25 cm³ which is option A.

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Two sides of a parallelogram are 65 feet and 87 feet. The measure of the angle between these sides is 52°. Find the area of the parallelogram to the nearest square foot.

Answers

Answer:

Area of the parallelogram is approximately 4,456.2 square feet

Step-by-step explanation:

The lengths of the sides of the parallelogram are 65 feet and 87 feet

The measure of the angle between the sides, Y = 52°

The formula for finding the area of a parallelogram is given as follows;

Area of a parallelogram = A·B·sin(Y)

Where;

'A' and 'B' are the length of the parallel sides and 'Y' is the measure of the angle between them

Let 'A' and 'B' represent the 65 feet and the 87 feet respectively, we get;

Area of the parallelogram = 65 ft. × 87 ft. × sin(52°) ≈ 4,456.2 ft.²

A triangle has vertices of (−3, 3), (−3, 2), and (1, −2). What are the coordinates after dilating from the origin by a scale factor of 1 2 ?

Answers

Answer:

(-1.5, 1.5), '(-1.5, 1) and (0.5, -1)

Step-by-step explanation:

Given the coordinate (x, y) If dilated by a factor k, the resulting coordinate will be (kx, ky).

Similarly given the coordinates of a triangle  (−3, 3), (−3, 2), and (1, −2)

when dilated by a factor of 1/2, the new coordinates will be at;

A (-3, 3) = A'(1/2*-3, 1/2 * 3) = A'(-1.5, 1.5)

B (-3, 2) = B'(1/2*-3, 1/2 * 2) = B'(-1.5, 1)

C (1, -2) = C'(1/2*1, 1/2 * -2) = C'(0.5, -1)

Three yrs hence, a men will be three time his brother age and the sum of present age is 18 find their present age

Answers

Answer:

Step-by-step explanation:

Let the age of a man = x

Age of his brother = y

Three yrs hence, a man will be three time his brother age

This is written as:

x + 3 = 3(y + 3)

x + 3 = 3y + 9 .... Equation 1

The sum of present age is 18

= x + y = 18

x = 18 - y

We substitute 18 - y for x in Equation 1

find their present age

18 - y + 3 = 3y + 9

Collect like terms

21 - 9 = 3y + y

12 = 4y

y = 12/4

y = 3 years

x = 18 - y

x = 18 - 3

x = 15 years

Please help I give out brainliest .....Kellie bought 8 towels and spent $39.60. Each towel costs the same amount.
Part A
Use the drop-down menus to create an equation that can be used to determine t, the
price, in dollars, of 1 towel.
+
8
39.60
V
Part B
What is the price, in dollars, of 1 towel?
Enter your answer in the box.

Answers

Answer:

Each Towel is 4.95 each

Step-by-step explanation:

We can use 8t = 39.60 as our equation

8t = 39.60

Divide 8 on both sides.

t = 4.95

Hope this helps! ^^

AREA OF CIRCLES HELP PLS​

Answers

Answer:

a=π9² is the formula with the radius plugged in

radius is half

Answer:

243in^2

Step-by-step explanation:

18/2=9

3 x 9 x 9=243

What is the midpoint of (6,3) and (-3,-7)​

Answers

Answer:

(Xm, Ym) = [ x1+x2/2, y1 + y2/2]

Given (6,3) (-3,-7)

x1 y1 x2 y2

Step-by-step explanation:

(Xm,Ym) =[ 6-3/2, 3-7/4]

= [ 3/2, -1]

Hi for this I got; (1.5, 2)

Jessica and two friends spent $36.93 on dinner. They left a $6.00 tip. How much money did each person spend if they split the bill and tip equally?

Answers

Answer:

14.31

Step-by-step explanation:


A sweater regularly priced at $135 is on sale at 15% off. How much would you pay
for the sweater, including taxes of 13%?

Answers

$129.66.
you just figure out 15% of 135 which is 20.25 so you subtract that from 135, which gives you $114.75. then you just do 114.75 times the tax % and it totals out to be $129.66

Find two numbers that round to 387.4 when rounded to the nearest tenth. Drag the numbers to the box.

Answers

Answer:

hi

Step-by-step explanation:

omhg hi

Help me please!!:((((

Answers

Answer:

.01*.5ˣ

Step-by-step explanation:

we can see that x=0 y= .01

so in our equation

a*bˣ

a=.01

This is throuhg plugging in 0 for x

a*b⁰=.01

a*1=.01

a=.01

Now it's just a matter of finding b

to do this just plug in a value

we know that when x=1 y=.005

.01*b¹=.005

b= .5

So our final equation is :  .01*.5ˣ

HOW TO DO THIS QUESTION PLEASE ​

Answers

Tot ratio=11
330/11=30
So Ed pay 7x30=210
Fay pays 4x30=120

For Ed to give Fay money so they r equal, he would need to give $45 so that they both are at 165.

Luna have c caramel then luna sister took 56 of the carmel write the expression that show the number of carmel luna have left brainly

Answers

Answer: [tex]c-56[/tex]

Step-by-step explanation:

Given

Luna has c caramel

Her sister took 56 caramel

The number of caramel luna has left is the subtraction of initial and 56 i.e.

[tex]\Rightarrow c-56[/tex]

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A sports company wants to package a ball with a 1.5-inch radius in sets of two. They have two options: a cylinder or a square prism.The company wants to use the package that has the least amount of wasted space. The company should choose GAWAIN 2Kumpletuhin ang sitwasyon sa ibaba.Hindi ka nakapasok ng isang linggo dahil ikaw ay nagkasakit. Magkakaroon kayo ng maikling pagsusulit. Nais monghumiram ng _______ sa iyong kaklase upang kopyahin ang mga napag-aralan nila noong ikaw ay wala. Paanomo kukumbinsihin aniyong kaklase na pahiramin ka ng kanyang _______?_____________________________________________________________________ help me pleaseeeee. what is this? William is a medical student and an active member of a student organization for healthcare students. He visited an underserved area during vacation and was shocked to see the apathy and lack of medical facilities. What can William do for the people of the area?A. plan an on-site training for the peopleB. plan a leadership conferenceC. search whether any research explains how to improve health servicesD. plan a community health service and health education program with help of other membersE. check if any of the residents of the area would want to work as interns Explain the various powers and duties of the Supreme Court of Canada. The temperature was 70 then dropped to 30 how much is it now? Find the volume of the rectangular prismThank you!! PLEASE HELP!!! I really need help with this question, so if anyone could spare a few min then thank you so much!! ;w; Today's cafeteria specials at a high school in Westford are a deluxe turkey sandwich and a chef salad. During early lunch, the cafeteria sold 13 turkey sandwiches and 69 chef salads, for a total of $151. During the late lunch, 61 turkey sandwiches and 41 chef salads were sold, for a total of $143. How much does each item cost? A girl who starts a rumor about her friend at school isdemonstrating which type of bullying behavior?1 Indirect bullying2 Social alienation3 Cyberbullying4 Physical bullying Explain TWO advantages of the Fees Must Fall Campaign The following data represent the time of production (in hours) for two different factories for the same product. Which factory has the best average time of production? Which factory will you select and why?Factory A14, 10, 13, 10, 13, 10, 7Factory B9, 10, 14, 14, 11, 10, 2 Determine the equation of the circle graphed below. Existen varias teorias del poblamiento de america, pero las mas aceptadas son las de alex Hrdlicka y paul rivet 1.What concluded the Mexican American War? Susie flips a coin three times. what is the probability of her getting tails all three times? In the trade-off theory, debt levels chosen to balance interest tax shield against the costs of financial distress imply:________ a. an interior optimum (firm value maximizing) debt ratio b. that investors are irrational, since they require lower returns the hgher the risk c. that a firm would use little to no debt d. that a firm would borrow as much as possible A man walks 1500 metres.On a map this is shown as 3cm.What is the scale on the map? The coordinates of 4 points are A(0,9), B(k + 1, k + 4), C(2k, k + 3) andD(2k + 2, k + 6). Find the value(s) of k if(a) the points A, B and C are collinear,(b) AB is parallel to CD. the effects of toxic chemicals are minimized by which following three mechanisms