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Maslowich
3 years ago
6

The formula for the circumference of a circle is C = 2nr. Find the circumference of a

Mathematics
1 answer:
Sholpan [36]3 years ago
7 0

Step-by-step explanation:

circumference = 2\pi \: r \\ C = 2 \times 3.14 \times ( \frac{4}{2} ) \\ C = 12.56 \: ft

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Finding terms of an arithmetic sequence with a recursive formula <br><br>a1 =12 an= an-1+7
Basile [38]

Hey there!!

Recursive formula :

... a( n ) = a ( n - 1 ) + 7

The first term is 12

To find the second term, we will need to substitute 2 in place of ' n '

2 term :

... a( 2 ) = a ( 2 - 1 ) + 7

... a( 2 ) = a( 1 ) + 7

We know a( 1 ) = 12

... a( 2 ) = 12 + 7

... 19 is the second term and we will need to use this to find the other terms.

Hope my answer helps!

5 0
3 years ago
One evening, it snowed in several towns. The number of inches of snow the towns received are shown in the list below.
Rama09 [41]

Answer:

3/4,3/4,3/4,3/4,1,1,2,11/2,11/2,11/4,11/4

Step-by-step explanation:

we just arrange the number from the smallest to bigger

8 0
2 years ago
Plz help ASAP !!!!! Plzzz
adell [148]

Answer:

The second one

Step-by-step explanation:

She started with x dollars and then used 8 dollars to buy a football game ticket, so x-8. Then, she is left with 56 dollars, so x-8=56. Therefore, the second story represents the equation.

5 0
3 years ago
4n + 5n= -9? What is the answer?
timurjin [86]

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6 0
3 years ago
Read 2 more answers
Find the standard deviation of the data, 12, 19, 9.
jek_recluse [69]

Answer:

4.19

Step-by-step explanation:

Find the mean:

\text{Mean}=\frac{12+19+9}{3}=\frac{40}{3}

Find the standard deviation:

\text{Standard Deviation}=\sqrt{\frac{(12-\frac{40}{3})^2+(19-\frac{40}{3})^2+(9-\frac{40}{3})^2}{3}}=\sqrt{\frac{158}{9}}\approx4.19

4 0
2 years ago
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