1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
notsponge [240]
3 years ago
7

The circumference of a roll of party streamers is 9 inches. The circumference decreases by 2 inches after you use the streamers

to decorate for a graduation party. Find the diameter of the roll after the decrease. Round your answer to the nearest hundredth.
Mathematics
1 answer:
leonid [27]3 years ago
7 0
For that case the new circumference is:
 C = 9 - 2
 C = 7 inches
 By definition, the circumference is:
 C = 2 * pi * r
 Where,
 r: radio
 Substituting values:
 7 = 2 * pi * r
 Clearing the radio:
 r = 7 / (2 * pi)
 Then, the diameter is:
 d = 2 * r
 Substituting:
 d = 2 * (7 / (2 * pi))
 d = 2.228169203
 Round to the hundredth:
 d = 2.23 inches
 Answer:
 
The diameter of the roll after the decrease is:
 
d = 2.23 inches
You might be interested in
I need help with proofs
Natasha_Volkova [10]
<span>Proofs are often over-complicated in math class. They are basically a step by step way of doing an assignment. There can be ones that are done using only math equations, but there are also ones that you write out as you would an essay, and those are my personal favorite. In those, you basically write out moment by moment how you find out the answer to a given problem.</span>
6 0
3 years ago
If a matrix does NOT have an inverse, what do you know about the determinant?
Strike441 [17]
Here is your answer!

B) The determinent is 0
7 0
3 years ago
What value of y makes the statement true? -6(y+15)=-3+6
Nitella [24]
I think Yes it is true
7 0
3 years ago
Evaluate the expression when c=9 and d=8. 4c+d<br><br><br><br><br>please help ​
guapka [62]

Answer:

44

Step-by-step explanation

4c + d

this is an expression and since they provided c and d it is easy to solve

c = 9 and d = 8. You need to plug in c and d into the expression to solve the problem.  

4(9) + (8)

4 times 9 is 36 so it leaves you with 36 + 8

36 + 8 = 44

I hope this helps but basically the concept is just plugging in the numbers in place of the variables. For future problems plug in the numbers given where the variables are.

7 0
3 years ago
X - 6 = 8 what is x?
kondor19780726 [428]

Answer:

x = 14

Step-by-step explanation:

  • x - 6 = 8
  • Group like terms.
  • x = 8 + 6
  • x = 14
5 0
3 years ago
Read 2 more answers
Other questions:
  • What is the slope of the line parallel to y= 5x+2.<br><br> A. -1/5<br> B. -5<br> C. 5<br> D. 1/5
    14·1 answer
  • THE RIGHT ANSWER WILL RECIEVE A BRAINLEST AND POINTS AND THANXS!!!
    5·2 answers
  • A friend lends you $250 for a week, which you agree to repay with 5% interest. How much will you have to repay?
    10·1 answer
  • 1. SAT Math scores in recent years have had means around 490 and standard deviations
    12·1 answer
  • Kristy ask Lonnie to think add 3 to it multiply the sum by 2 and the subtract 6 let n stand for lonnie starting number which exp
    13·1 answer
  • (ZOOM IN TO SEE THE QUESTION) I need help!!!
    15·2 answers
  • HELO I NEED HELP PLZZ
    9·1 answer
  • PLZZ HELP ME THIS IS A NO RETAKE QUIZ IT WOULD BE GREATLY APPRECIATED
    15·1 answer
  • A fair die os flipped 6 times. What is the probability of rolling at least one 3? Round the answer to the nearest hundredth of a
    5·1 answer
  • Help me ASAP and show me how you got your answer
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!