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2 years ago

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

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:

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.

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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

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3 years ago

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