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sineoko [7]
2 years ago
10

Draw a model to show a fraction that is equivalent to 1/3 and a fraction that is not equivalent to 1/3

Mathematics
1 answer:
garri49 [273]2 years ago
8 0

⬛⬜⬜ is 1/3

⬛⬛⬜ is not 1/3

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If your dogs heart rate is 90 times per minute how many times would it beat in an hour?​
Inga [223]

Answer:5400

Step-by-step explanation: 1 hour is 60 minutes, so 90 * 60 = 5400

7 0
3 years ago
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A simple random sample of n measurements from a population is a subset of the population selected in a manner such that which of
Ierofanga [76]

Answer:

a) sample of size n from the population has an equal chance of being selected.

b) Every member of the population has an equal chance of being included in the sample.                                            

Step-by-step explanation:

Simple random sampling:

  • It is a type of probabilistic sampling.
  • It is an unbiased representation of population.
  • The probability of selection is equal for every observation.
  • A sample is taken in such a way that each member has an equal probability of being selected.
  • A simple random sample is a subset of a statistical population in which each member of the subset has an equal probability of being chosen.
  • Thus,the correct interpretation is given by,

a) sample of size n from the population has an equal chance of being selected.

b) Every member of the population has an equal chance of being included in the sample.

  • c) The simplest method of selection is used to create a representative sample.

The statement is false.

There is no pattern or technique used for selection. The selection is purely random.

  • d) Each subset of the population has an equal chance of being included in the sample.

The statement is false.

Each object of the population has an equal chance of being included in the sample. and not each subset.

  • e) Every sample of size n from the population has a proportionally weighted chance of being selected.

The given statement is false.

8 0
3 years ago
Help me!! Thank you for the help!!
VLD [36.1K]

Answer:

D. 0.34

Step-by-step explanation:

0.24²+0.31²=x² then you find the square root

6 0
3 years ago
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Please help me with these.
frozen [14]

18. The perimeter is simply √3 + √3 + √3 + √3 or 4√3cm, since the perimeter is just all sides added together. You could add the decimal numbers together using a calculator, which I'm not sure if you're supposed to do in your class.

The area is just width times length, so √3 • √3 = 3cm².

19. The perimeter is 2√5 + 2(9 - √5).

This can also be written as 2√5 + 18 - 2√5, which leaves you with a perimeter of 18ft.

The area would be √5 • (9 - √5), which leaves you with (9√5 - 5)ft².

20. The formula for the perimeter (or circumference) of a circle is π times the diameter of the circle. Using the radius of the circle, 1/π, the diameter is 2/π, so

π • 2/π = 2. The circumference of the circle is 2 inches.

The area of the circle is calculated with the equation πr², so

π(1/π)² = π • 1/(π²) = π/(π²) = π. The area is simply π in².

8 0
3 years ago
Solve the following system of inequality <br> x &lt; 3y - 18
insens350 [35]

Step-by-step explanation:

<em><u>If you are solving for y :</u></em>

<em><u>\:</u></em>

x < 3y - 18

x + 18 < 3y

\frac{x + 18}{3}  <  \frac{3y}{3}

y >  \frac{3}{x}  + 6

6 0
1 year ago
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