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
katovenus [111]
2 years ago
13

The diameter of circles is 4 cm. ​

Mathematics
1 answer:
krok68 [10]2 years ago
8 0

Answer:

Step-by-step explanation:

C=pi d, here d=4 so

C=pi X 4

You might be interested in
A recent survey of 128 high school students indicated the following information about release times from school.
Delicious77 [7]

Answer:

A) Interval estimate for those that want to get out earlier = (35%) ± (4%) = (31%, 39%)

Interval estimate for those that want to get out later = (39%) ± (4%) = (35%, 43%)

B) The group that wants to get out of school earlier can win after all the votes are counted if their true population proportion takes on a value that is higher than the closest true population proportion (for the group that wants to get out of school later)

That is, in the (31%, 39%) and (35%, 43%) obtained in (a), a range of (35.1%, 39%) and (35%, 38.9%) show how possible that the group that wants to get out of school earlier can win after all the votes are counted.

Step-by-step explanation:

The Interval estimate for the proportion is basically an interval of range of values where the true population proportion can be found with a certain level of confidence.

Mathematically,

Interval estimate = (Sample proportion) ± (Margin of error)

Margin of Error is the width of the confidence interval about the proportion.

a) Find the interval estimates

i) for those that want to get out earlier and

ii) those that want to get out later.

i) Sample proportion of those that want to get out earlier = 35%

Margin of Error = 4%

Interval estimate for those that want to get out earlier = (35%) ± (4%) = (31%, 39%)

ii) Sample proportion of those that want to get out later = 39%

Margin of Error = 4%

Interval estimate for those that want to get out later = (39%) ± (4%) = (35%, 43%)

b) Explain how it would be possible for the group that wants to get out of school earlier to win after all the votes are counted.

Since the interval estimates represent the range of values that the true population proportion can take on for each group that prefer a particular option, the group that wants to get out of school earlier van have their proportion take on values between 31% and 39%. If their true population takes on a value that is highest (which is very possible from the interval estimate), and the group with the highest proportion in the sample, (the group that wants to get out of school later, whose true population proportion can take between 35% and 43%) has a true population proportion that is less than that of the group that wants to get out of school earlier, then, the group that wants to get out of school earlier can win after all the votes are counted.

Hope this Helps!!!

3 0
3 years ago
What are the terms in the expression 7x + 4y + 1?
Sphinxa [80]
There are 3 terms : 7x , 4y, and 1.
a term is separated by any math symbol
examples are =, +, *
7 0
3 years ago
Read 2 more answers
What is one fraction equivalent to 4/7
tia_tia [17]
4/7
4*2 ...  8
7*2 ... 14

8/14 = 4/7

<span>Best Regards, Mike</span>
8 0
3 years ago
Read 2 more answers
If f(x) = 4x + 3x2 + 1, then what is the remainder when f(x)<br> is divided by X -2?
Bezzdna [24]

Answer:

remainder = 21

Step-by-step explanation:

If f(x) is divided by (x - h) then the remainder is f(h)

Here f(x) is divided by (x - 2) with h = 2 , then remainder is

f(2) = 4(2) + 3(2)² + 1 = 8 + 3(4) + 1 = 8 + 12 + 1 = 21

5 0
3 years ago
What's the reciprocal of 2 4/7 ?​
Gnom [1K]

Answer:

7/18

Step-by-step explanation:

²\frac{4}{7}=((2*7)+4)/7

2*7=14

14+4=18

18/7⇒7/18

4 0
2 years ago
Other questions:
  • The base charge of a cab in New York is $2.50 as soon as you enter the cab. There is an additional charge of $2.50 per miles tra
    10·1 answer
  • How many significant figures are in 10.65922​
    14·1 answer
  • Graph the ordered pairs for y=3x+3 using x={-2,1,2}
    11·1 answer
  • 60 is 10 times as much as what? 60<br> is 1/10 of what?
    12·1 answer
  • A racing car travels around a 2k circuit at 120km/h.
    7·1 answer
  • Lo ran 6 ¼ miles Thelma ran 1 2/3 miles.<br> How many times further did Lo run than Thelma?
    11·1 answer
  • Simplify this answer pls
    9·1 answer
  • A can of beans has surface area 337 cm2. It's heights is 11cm. What is the radius of the circular top?
    8·1 answer
  • When 2 probabilities are Mutually Exclusive, they do not have any outcomes in common.
    9·1 answer
  • 25 points! SHOW ALL WORK PLZ!
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!