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
prisoha [69]
3 years ago
7

Work out the circumference of this circle.

Mathematics
1 answer:
Arada [10]3 years ago
6 0

Answer: 52.7856cm

Step-by-step explanation:

Circumference of a circle = 2πr

Note that radius = Diameter / 2 = 16.8/2 = 8.4cm

Circumference = 2πr

= 2 × 3.142 × 8.4

= 52.7856cm

Therefore, the circumference of the circle is 52.7856cm

You might be interested in
Determine whether the following statement regarding the hypothesistest for two population proportions is true or false.
murzikaleks [220]

Answer:

False

Step-by-step explanation:

Let p1 be the population proportion for the first population

and p2 be the population proportion for the second population

Then

H_{0} p1  = p2

H_{a} p1 ≠ p2

Test statistic can be found usin the equation:

z=\frac{p1-p2}{\sqrt{{p*(1-p)*(\frac{1}{n1} +\frac{1}{n2}) }}} where

  • p1 is the sample population proportion for the first population
  • p2 is the sample population proportion for the second population
  • p is the pool proportion of p1 and p2
  • n1 is the sample size of the first population
  • n2 is the sample size of the second population.

As |p1-p2| gets smaller, the value of the <em>test statistic</em> gets smaller. Thus the probability of its being extreme gets smaller. This means its p-value gets higher.

As the<em> p-value</em> gets higher, the null hypothesis is less likely be rejected.

7 0
3 years ago
A game of chance is begun. You will pick one number out of 300. If your number is picked you win $30,000. At what point is it no
garik1379 [7]

Answer:

<$100 / greater than $100

Step-by-step explanation:

30,000/300=100

If you spent $100 per spin and won 1 out of 300 games, there would be no net gain.

If you spent anything more than $100, then you would lose more money than you gained if you won 1 out of 300 games.

3 0
2 years ago
GIVING 100 POINTS
Mekhanik [1.2K]

Answer:

-3x-6<-33 and =3x-65-6

Step-by-step explanation:

8 0
3 years ago
Can you please help me<br> sorry this is hard for me but i’ll give u brainliest and 70 points
devlian [24]

Answer:

-9 + 5 = -4

Step-by-step explanation:

I think that's what your asking.....

6 0
2 years ago
Read 2 more answers
Solve the equation. (Find only the real solutions. Enter your answers as a comma-separated list.) x4 − 8x2 + 7 = 0
ryzh [129]

Answer: x=0 or x= plus or minus 2

Step-by-step explanation:

g(x)=x^4-8x^2+7

Critical numbers are the numbers where the first derivative is zero

g'(x)=4x^3-16x+0

=4x^3-16x

g'(x)=0

Implies

4x^3-16x=0

4x(x^2-4)=0

4x=0 OR x^2-4=0

x=0 or x^2=4

x=0 or x= plus or minus 2

5 0
3 years ago
Other questions:
  • lynn spends money while sam saves money lynn starts with $250 and spends $20 per week sam starts with $40 and saves $15 per week
    10·1 answer
  • -8(y-2)=160<br> I know that y-2=-20 but is y=-22 or -18 and why?
    15·1 answer
  • What is the surface area?<br> 3 ft.<br> 2 ft.<br> SETE<br> 2 ft.<br> .
    11·1 answer
  • Last week, Matt's Diner sold 12 milkshakes with whipped cream on top and 8 milkshakes without whipped cream. What percentage of
    8·1 answer
  • there are 60 kids who plays soccer 5% of the kids also play chess how many children play both soccer in chess​
    9·1 answer
  • QUESTION 20
    14·1 answer
  • Please help me and explain! (1 and 2)​
    14·1 answer
  • Mark and Jen me at the beach yesterday July 31. Might go to the beach every third day in Django ceviche before three. How many t
    7·1 answer
  • What is the interest you will pay if you borrowed $900 at 10% interest for 2 years?
    5·2 answers
  • A type of opinion based on observation and evidence.
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!