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kakasveta [241]
2 years ago
9

What is the equation to find the circumference of a circle?

Mathematics
2 answers:
Rasek [7]2 years ago
8 0

Answer:

C=2 π r

Step-by-step explanation:

lukranit [14]2 years ago
6 0

Answer:

C=2(3.14)r

or

C= 3.14(d)

Step-by-step explanation:

This is an equation to find circumference using radius or diameter

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Which of these numbers has three significant digits?
liberstina [14]

Answer:

The answer is A. 1.23

hope this helps!

8 0
3 years ago
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Tickets to a local circus cost $5 for students and $8 for adults. A group of 9 people spent a total of $60. How many adults were
S_A_V [24]

Answer:

5

Step-by-step explanation:

You need to set up and solve a system of linear equations here.

Let s and a represent the number of students and adults respectively.

Then s + a = 9, and s = 9 - a.

Total ticket cost for the adults was ($8/adult)(a)

and for the students ($5/student)(s).

Total cost of the tickets was then  ($8/adult)(a) + ($5/student)(s) = $60.

Then our system of linear equations is:

8a + 5s = 60

 a  +  s  = 9, or s = 9 - a.  Substituting 9 - a for s, we get:

8a + 5(9 - a) = 60.

Then 8a + 45 - 5a = 60, or 3a = 15.

Solving for a, we get a = 5.

Solving for s using s = 9 - a, we get   s = 9 - 5, or s = 4.

There were 5 adults in the group (and 4 students).

3 0
3 years ago
let a,b,c,d be four integers (not necessarily distinct) in the set {1,2,3,4,5}. the no. of polynomials x^4+ax^3+bx^2+cx+d which
Eddi Din [679]
By either long or synthetic division, it's easy to show that

\dfrac{x^4+ax^3+bx^2+cx+d}{x+1}=x^3+(a-1)x^2+(-a+b+1)x+(a-b+c-1)-\dfrac{a-b+c-d-1}{x+1}

The quartic will be exactly divisible by x+1 when the numerator of the remainder term vanishes, or for those values of a,b,c,d such that

a-b+c-d-1=0

I'm not sure how to count the number of solutions (software tells me it should be 80), but hopefully this is a helpful push in the right direction.
8 0
3 years ago
Urgent need of assistance ​
ikadub [295]

Answer:i got 329

Step-by-step explanation:

4 0
2 years ago
Please help asap 15 pts
alexandr402 [8]

= 10x^2y + 12z^2 - 2z

Answer is D.

10x^2y + 12z^2 - 2z

5 0
3 years ago
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