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
Nesterboy [21]
2 years ago
9

Help with this pleaseeee

Mathematics
1 answer:
saw5 [17]2 years ago
7 0

Answer:

66 cm (Option B)

Step-by-step explanation:

The formula for the circumference of a circle is C = 2πr, so plug the values into the formula.  The radius, (r) of a circle is one half of the diameter, so split 21 is half to get a radius of 10.5.  Use 3.14 for π.  

C = 2πr

C = 2(3.14)(10.5)

C = 6.28 × 10.5

C = 65.94

Rounded to the nearest unit, you get a answer of 66 cm.  

Hope this helps!  :)

You might be interested in
In February, Paul's electric bill was three dollars more then one-half his gas bill. If the electric bill was ninety-two dollars
USPshnik [31]

Answer:

49$

Step-by-step explanation:

7 0
3 years ago
What is the value of x
miss Akunina [59]
That shi look hard I ain’t gone lie
7 0
3 years ago
Read 2 more answers
What is seven less than three times a number.
sukhopar [10]
Let’s use y as a replacement for a number. You would do 3y-7 since you multiply by three and take away seven.
3 0
2 years ago
Read 2 more answers
Lisa had $4.26 in her purse. She bought some school supplies for $2.75. How much money does Lisa have left?
Mama L [17]

Answer:

$1.51

Step-by-step explanation:

take 4.26 and subtract 2.75.

7 0
3 years ago
Puteti sa ma ajutati va rog? Vreau solutii cu explicatie elaborata, nu doar raspunsul. Multumesc.
almond37 [142]
I don’t speak Spanish but if you put the English trans in the comments I’d love to answer
6 0
2 years ago
Other questions:
  • What’s 7c(-31) answer
    6·1 answer
  • Write four and five eighths as an improper fraction and as a mixed number
    13·2 answers
  • Find the VERTEX of the parabola f(x) = x^2 - 16x + 63
    14·1 answer
  • Dan is building a circular swimming pool and wants the circumference to be no more than 95 feet. What is the largest radius poss
    7·1 answer
  • A roulette wheel has the numbers 1 through 36, 0, and 00. A bet on four numbers pays 8 to 1 (that is, if you bet $1 and one of t
    14·1 answer
  • Triangle JKL and triangle PQR are similar. What is the measure is side PR?
    8·2 answers
  • Suppose your manager indicates that for a normally distributed data set you are analyzing, your company wants data points betwee
    7·1 answer
  • What is the slope of 7x+3y<-26
    10·1 answer
  • What is the contrapositive of this statement? if a figure has three sides, it is a triangle.
    15·1 answer
  • 9. To stitch a shirt, 2 m 15 cm cloth is needed. Out of 40 m cloth, how many shirts can be stitched and how much cloth will rema
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!