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DerKrebs [107]
3 years ago
9

If a coin is flipped 20 times and a head comes up 7 times, what is the relative frequency of a head coming up?

Mathematics
2 answers:
Tju [1.3M]3 years ago
7 0
Relative frequency is the absolute frequency (i.e. the number of times of the wanted result) divided by the total  number of events.

In this case you have to calculate: the number of heads that came up divided by the number of times the coin was flipped.

Number of times the coin was flipped: 20
Numbef of times head came up: 7

Relative frequency: 7 / 20 = 0.35, which is the option B.
sasho [114]3 years ago
3 0

Answer:

0.35

Step-by-step explanation:

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Which number has both 2 and 5 as prime factors?
musickatia [10]

Answer:

Any multiple of 10

Step-by-step explanation:

A factor is defined as "a number or quantity that when multiplied with another produces a given number or expression." For example, the factors of 20 are 1, 2, 4, 5, 10, and 20.

When we multiply 2 and 5 together, we get 10. Multiplying this by anything else besides 0 will still yield something that has 2 and 5 as factors, for example 2 times 5 times 3 is 30. As this is just the same thing as multiplying 10 by 3, the answer is any multiple of 10.

4 0
3 years ago
How to solve this question? Please help me
Maurinko [17]

Answer:

≈ 82 feet

Step-by-step explanation:

Since the triangle is right use Pythagoras' identity to calculate distance (d)

The square on the hypotenuse is equal to the sum of the squares on the other 2 sides.

Here the hypotenuse is the distance (d) between the 2 poles, hence

d² = 80² + 45² = 6400 + 2025 = 8425 ( take the square root of both sides )

d = \sqrt{8425} ≈ 82 feet ( to the nearest foot )

8 0
4 years ago
What is the Kinetic Energy of a 15 kg object that is moving with a speed of 30 m/s?
crimeas [40]

Answer:

6750J

Step-by-step explanation:

30^2=900 900x15=13500 13500/2=6750

5 0
3 years ago
Read 2 more answers
What is the distance from the origin to point P graphed on the complex plane below
anastassius [24]

Answer:

b) √29

Step-by-step explanation:

Given: The origin is (0, 0), the point P is (2, -5).

We need to use the distance formula.

Distance formula =

Here x2 = 2, x 1 = 0, y1 =0, y2 = -5

Distance =

= √(4 + 25)

= √29

The answer is b) √29

Hope you will understand the concepts

Thank you!!

8 0
3 years ago
(20 points) Need help ASAP!!
ziro4ka [17]
1) 7; 5
2) 5; 25
3) 8; 15
5 0
3 years ago
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