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
IrinaK [193]
3 years ago
11

SOMEONE HELP, I HAVENT BEEN PAYING ATTENTION TO CLASS

Mathematics
2 answers:
NNADVOKAT [17]3 years ago
6 0

Answer:

A=4cm

ok to do this we do the formula

A=PiR^2

A=3.14*4^2

A=3.14*16

A=50.24

and the area of circle B is 4 times the area of a so

50.24*4=200.96

200.96=3.14*X^2

Since  r  is on the right side of the equation, switch the sides so it is on the left side of the equation. 3.14 ⋅ r 2 = 200.96  Divide each term by  3.14  and simplify.

r 2 = 64

r=8

CIRLCE A=50.24

CIRLCE B=8

andrew11 [14]3 years ago
3 0
Uhhh yeah me neither!! 3.14 yes!!! it’s pie
You might be interested in
Amanda has a job that pays $92,000 per year. How much will she pay in social security taxes? (soical security is 6.2% of earning
Anuta_ua [19.1K]
I think $102,000 is the answer
7 0
3 years ago
Read 2 more answers
A production line produces 12 cd players every 4 hr. how many players can it produce in 37 hr?
zloy xaker [14]
Since its not an even number it would be 432
8 0
3 years ago
A reporter announces that there is an 80% chance of a thunderstorm tomorrow, and if the thunderstorm materializes, there is a 14
Vinil7 [7]

Answer & Step-by-step explanation:

We will only get a tornado if there is already a thunderstorm materializing

0.80 * 0.14 = 0.112

Probability of a tornado = 11.2%

There is a 100 - 14 = 86% chance of a tornado not being produced.

0.80 * 0.86 = 0.688

Probability of a storm and no tornado = 68.8%

8 0
2 years ago
How do you use the exchange rate to calculate the amount of ARS that is equal to 350 AUD
Anna11 [10]
Your answer would be <span>6678.02</span>
7 0
3 years ago
The value of a dirt bike decreases by 20% each year. If you purchased this dirt bike today for $500, to the nearest dollar how m
jeka94
The value of the bike after a year becomes only 80% of the value a year ago. In this given, the initial amount $500 should be multiplied by 80% 5 times. The answer would be $163.84. Thus, after 5 years the dirt bike would only be $163.84. 
5 0
3 years ago
Read 2 more answers
Other questions:
  • Nancy drove 400 miles in three days. She drove 113 on each of the first two days How many miles did she drive on the third day?
    13·1 answer
  • 1. Sоlvе х^2 = -169.
    13·1 answer
  • Maggie’s brother is 3 years younger thank twice her age the sum of their ages is 24 how old is Maggie
    14·1 answer
  • Solve this question please
    10·1 answer
  • I really need help please!!
    8·1 answer
  • Find the area of the shaded region of the trapezoid.
    12·1 answer
  • A punter kicks a football into the air. The pathway of the football can be represented by the equation h=-16t^2+82t (where t= ti
    5·2 answers
  • What is the surface area for 4in 10in and 3in
    9·2 answers
  • BRAINLIEST IF YOU ANSWER FAST!
    6·2 answers
  • In the diagram above, &lt;1=40. Find the measure of &lt;4 <br> &lt;4 = [???]
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!