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
Ugo [173]
3 years ago
11

If the diameter of a circle changes from 18 cm to 6 cm, how will the circumference change?

Mathematics
1 answer:
omeli [17]3 years ago
6 0
We know that 

the length of a circumference=2*pi*r
for D1=18 cm--------------> r1=9cm
L1=2pi*9-------> 18pi cm

for D2=6 cm-----------> r2=3 cm
L2=2pi*3-------> 6pi cm

L2/L1----------> (6pi)/(18pi)---->1/3

the answer is the option A) multiplies by 1/3
You might be interested in
B. Solve the following Polynomials:<br>1. u³ + 64​
Art [367]

Answer:

(4 + u)(16 – 4u + u2)

Step-by-step explanation:

64 + u3.

= 43 + u3.

= (4 + u)(42 – 4.u + u2).

= (4 + u)(16 – 4u + u2).

3 0
3 years ago
Which is NOT TRUE of data sets? A) A measurable characteristic of a sample is called a statistic. B) A measurable characteristic
zheka24 [161]
A) is wrong because a measurable characteristics is called a basic

3 0
3 years ago
Joanie bought a total of 56 presents to put in 7 gift bags.She put 3 pencils and an equal number of stickers in each bag.How man
amid [387]

Answer:

5 stickers were put in each bag.

Step-by-step explanation:

There is a total of 56 presents and 7 gift bags. If she puts three pencils in each bag, 7 times 3 is 21. 56 presents minus 21 pencils is 35 presents left. 35 divided by 7 is 5, so there are 5 stickers in each bag.

7 0
2 years ago
How many ways can a president, vis-president and treasurer be selected from a group of 15 students?
dybincka [34]

Answer:

455ways

Step-by-step explanation:

This is expressed as 15 C 3 ( C- combination)

The concept of combination is used when we talk about selection.

Now we are selecting 3 from a sample of 15

15 C 3 = 15! / (15-3)! 3! = 15 ×14×13×12!/12!×3×2

= 5 × 7 × 13 = 455ways

8 0
3 years ago
Pls help I’ll brainlest <br><br> Complete the activities below
DanielleElmas [232]

Answer:

Step-by-step explanation:

( x_{1} , y_{1} )

( x_{2} , y_{2} )

rate of change or slope m = \frac{y_{2} -y_{1} }{x_{2} -x_{1} } = \frac{rise}{run}

y = mx + b

"b" is y-intercept

~~~~~~~~~~~~~~~~~~~

7 0
2 years ago
Other questions:
  • The set of numbers that includes the whole numbers and their opposites is called the set of _____.
    12·2 answers
  • Which of the following is the equation a^(2b+1)=3c-d
    7·2 answers
  • 2/5=w-3/2 w=19/10<br> What are the steps?
    7·2 answers
  • Please I need help on this <br><br> A (X,y) - (x+6,y)<br> B (x,y) - ( x,-y)
    7·1 answer
  • These dot plots show lengths (in feet) from a sample of crocodiles and alligators.
    8·1 answer
  • I already tried 15000 and it didn’t work I’m rlly bad at math so pls help✋
    11·2 answers
  • You flip a coin three times in a row. What is the probability you will get three tails?
    7·2 answers
  • Is 2πr (2r+√(h^2+4r^2 ) ) over πr(r+√(h^2+r^2 )) a simplified algebraic ratio?
    5·1 answer
  • Solve the formula <br> 2x − 3y = 18 for y.
    7·2 answers
  • Given: ABCD is a parallelogram GEC ∠GEC≅∠HFA and AE ≅ FC . <br> Prove: △GEC≅△HFA.
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!