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aleksley [76]
2 years ago
12

During its grand opening sale, a local electronics store gave customers a chance to win a new flat screen TV. Customers only had

to fill out a card with their name, address, and telephone number and drop it into a box. One winner would be chosen at random. This is an example of a
Mathematics
1 answer:
Gennadij [26K]2 years ago
8 0

Using sampling concepts, it is found that this is an example of a random sample.

<h3>How are samples classified?</h3>

Samples may be classified as:

  • Convenient: Drawn from a conveniently available pool.
  • Random: All the options into a hat and drawn some of them.
  • Systematic: Every kth element is taken.
  • Cluster: Divides population into groups, called clusters, and each element in the cluster is surveyed.
  • Stratified: Also divides the population into groups. Then, a equal proportion of each group is surveyed.

In this problem, one winner is chosen at random from all the participants, hence random sampling is used.

More can be learned about sampling concepts at brainly.com/question/25122507

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This is Simple Interest 7 grade Ratio and Percent Problems
erastovalidia [21]
Formula: total = principal x (1 + (interest rate x loan time))

total = 1000 x (1 + (0.055 x 2))

total = 1000 x (1 + 0.11)

 total = 1000 x 1.11

total = $1110
8 0
4 years ago
The vertices of a quadrilateral in the coordinate plane are known. How can the perimeter of the figure be found?
AlekseyPX

Answer:

Use the distance formula to find the length of each side, and then add the lengths.

Step-by-step explanation:

We are given the vertices of a quadrilateral in the coordinate plane.

We have to find the perimeter of the figure.

For doing so, we have to find the length of all the sides of a quadrilateral

The length of a line segment joining points (x1,y1) and (x2,y2) is given by the distance formula:  \sqrt{(x2-x1)^2+(y2-y1)^2}

after finding length of all the sides, we add the length of each side to get the perimeter.

Hence, the correct option is:

Use the distance formula to find the length of each side, and then add the lengths.

5 0
4 years ago
Read 2 more answers
GUYS PLEASE HELP ME I WILL GIVE BRAINLIEST, 5 STARS, AND EVERYTHING! THANKS!
vekshin1

Answer:

3

Step-by-step explanation:

C(n) = 5n, 0 ≤ n ≤ 10       You would use this equation for finding the cost of 10 shirts. Since 10 is equal to 10.

C(n) = 5n, 0 ≤ n ≤ 10 ← You can ignore the 0 ≤n ≤10 part.

C(10) = 5(10)                 Input the value 10 as x.

C(10) = 50                    Simplified

Next,

C(n) = 4n + 5, n > 10      You would use this equation for finding the cost of 12shirts. Since 12 is greater than 10.

C(n) = 4n + 5, n > 10  ←  You can ignore the n>10 part.

C(12) = 4(12) + 5, n > 10  Input the value of 12 as x.

C(12) = 48 + 5                 Simplify

C(12) = 53    

Finally,

The question is asking you to find the difference between the cost of 12 shirts and the cost of 10 shirts. So the formula would be C(12) - C(10).

C(12) - C(10)

(53) - (50)                       Input the values of C(12) and C(10).

= 3                                  Simplify.

The answer is 3.

3 0
3 years ago
Someone pls help me i will give brainliest to the first to answer
atroni [7]

Answer:

21 and 35

Step-by-step explanation:

21 for the first box, when it is in parenthesis you multiply each, so then 35 for the second box

7 times 3 then 7 times 5

7 0
2 years ago
Be sure to round to 4 sig fig for your answer.
Tresset [83]

Answer:

1) 1.203

2) 1.291

Step-by-step explanation:

1 mL = 0.001 L

1202.57120 mL = <u>1.202</u>57120 L

round to 4 sig fig = 1.203

1g = 10dg

0.1290743 g = <u>1.290</u>743 dg

round to 4 sig fig = 1.291

4 0
3 years ago
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