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mamaluj [8]
2 years ago
13

Circumference if a circle with a diameter of seven

Mathematics
2 answers:
lara [203]2 years ago
8 0

Answer:

21.99

Step-by-step explanation:

2 times pi times radius

Dmitry_Shevchenko [17]2 years ago
5 0

Answer:

Circumference = 2 x pi x r

Radius, r = 7/2

Circumference = 2 x 22/7 x 7/2

                         = 22 cm

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I went to the movies and bought 4 tickets. It cost me 23 dollars for the tickets after I applied my 5 dollar Tuesday discount. C
Scilla [17]

Answer:

x= 5.75$

Step-by-step explanation:

23 divided by 4 = 5.75$ (without the discount it is 10.75$)

3 0
2 years ago
Read 2 more answers
​ f(1)=72 f(n)=f(n−1)+9 ​ Find an explicit formula for f(n)
myrzilka [38]

a_{n} = 9n + 63

generate the first few terms using the recursive equation

f(1) = 72

f(2) = 72 + 9 = 81

f(3) = 81 + 9 = 90

f(4) = 90 + 9 = 99

the sequence is 72, 81, 90, 99, .....

This is an arithmetic sequence whose n th term formula is

a_{n} = a_{1} + (n - 1 )d

where a_{1} is the first term and d the common difference

d = 99 - 90 = 90 - 81 = 81 - 72 = 9 and a_{1} = 72

a_{n} = 72 + 9(n - 1) = 72 + 9n - 9 = 9n + 63 ← explicit formula


8 0
2 years ago
Evaluate the expression when n= 3.<br> n2+8n+6
Katyanochek1 [597]

Answer:

36

Step-by-step explanation:

4 0
2 years ago
Is 0.09 greater than 0.7
chubhunter [2.5K]
No, 0.7 is greater than 0.09

0.70 > 0.09

hope this helps
3 0
3 years ago
Read 2 more answers
The supplement of an angle is three times the measure of the angle.
stira [4]

Answer: The angle equals  45 ∘  and the supplement is  135 ∘

Explanation:

Since the supplement is three times the angle, we can say    s  =  3 a

Since we know the supplement is  

180 − a , we can plug that in.

180 - a = 3a

180  = 4 a  (add  a  to both sides)

45  =  a  (divide both sides by  4)

Since we know the angle now, all we have to do is multiply it times  3  to find the supplement.

45  ×  3  =  135

4 0
2 years ago
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