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Ad libitum [116K]
3 years ago
15

Radius=21 what is the cicumference​

Mathematics
2 answers:
Anastasy [175]3 years ago
8 0
2pir
42pi
131.9 is the circumference
adell [148]3 years ago
5 0

Answer:

circumference = 2πr

                         = 2*\frac{22}{7}*21\\\\\\= \frac{44}{7}*21\\\\=  \frac{924}{7}\\\\= 132

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Type the correct answer in each box. If necessary, use /for the fraction bars
Vikentia [17]

Answer:

The experimental probability of rolling an odd number is 60%, which is 10% more than the theoretical probability.

Step-by-step explanation:

The complete question is:

Type the correct answer in each box. Use numerals instead of words. If necessary, use/ for the fraction bar(s).

A special 8-sided die is marked with the numbers 1 to 8. It is rolled 20 times with these outcomes.

3, 4, 5, 2, 7, 1, 3, 7, 2, 6, 2, 1, 7, 3, 6, 1, 8, 3, 5, 6

The experimental probability of rolling an odd number is _%, which is _% more than the theoretical probability.

Solution:

The possible outcomes of rolling an 8-sided die are:

S = {1, 2, 3, 4, 5, 6, 7, 8}

The odd numbers are:

Odd = {1, 3, 5, 7} = 4 outcomes

The theoretical probability of rolling an odd number is:

P_{T}(\text{Odd})=\farc{4}{8}=\frac{1}{2}=50\%

Now from the given 20 outcomes the odd values are:

Odd = {3, 5, 7, 1, 3, 7, 1, 7, 3, 1, 3, 5} = 12 outcomes

Compute the experimental probability of rolling an odd number as follows:

P_{E}(\text{Odd})=\frac{12}{20}=\frac{3}{5}=60\%

Thus, the experimental probability of rolling an odd number is 60%, which is 10% more than the theoretical probability.

6 0
3 years ago
Which describes the collection of all points in the same plane that are 8 1/2 inches from Point T?
lukranit [14]

Answer:

circle T with radius 8 and 1/ 2 inches

Step-by-step explanation:

 

5 0
3 years ago
Ms. Smiths block 2 class has 30 students. 2/3 of them are absent on a field trip for science. How many students in the class are
Olenka [21]
20 because if you think about it 2/3 is equal to 20/30.
7 0
3 years ago
Read 2 more answers
In a competition, a prize is won every 2018 minutes. Work out an estimate for the number of prizes won in 1 year. You must show
vagabundo [1.1K]

Answer:

260

Step-by-step explanation:

Number of hours in one year = 365 x 24 x 60 = 525600

(365 days, 24 hours per day, 60 minutes per hour)

One prize is won every 2018 minutes so in 525600 minutes

525600 / 2018 = 260 prizes will be won  (The answer is 260.46, which rounds to 260)

PS: Can I pls get brainliest? I need it to rank up

7 0
3 years ago
Urgent pls :
Luden [163]

13/52 + 13/52

26/52

1/2

0.5

50%

7 0
3 years ago
Read 2 more answers
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