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
Komok [63]
3 years ago
7

Work out the area of a circle with a radius 6.2cm, take n/pi to be 3.142 and give your answer to 2 decimal places.

Mathematics
1 answer:
s344n2d4d5 [400]3 years ago
3 0

Answer:

Step-by-step explanation:

Area is pi times r squared.  I don't know how to write that on the keyboard.  Take your pi(3.142) times the radius(6.2)squared.  Pemdas tell us to do exponents first, so 6.2 squared is 38.44.  To square a number, just multiply it times itself.  So now, we have pi(3.142) times the squared radius(38.44).  So, 3.142X38.44=

120.778  Second place is seven followed by eight.  Round up.  120.78

You might be interested in
Solve 2x^2 + 7x-15=0
aleksandrvk [35]

Answer:

a

Step-by-step explanation:

8 0
3 years ago
A certain cuty has 2700 pets. of these pets 1/4 are cats 1\5 are dogs 1/10 are horses 1/9 are frogs 1/4 are fish and the rest ar
andriy [413]
1/5 are dogs.

1/5 x 2700 = 540 

--------------------------------------------
Answer: There are 540 dogs.
--------------------------------------------
4 0
3 years ago
Nikhil invests all of his $ 350 at a rate of 3% per year simple interest.Calculate the total value of this investment after 7 ye
Andrew [12]

answer:

423.5

step1.

you find the value of 3% by dividing over 100 because percentage is over 100 so 3/100

step2

multiply by $350

so 3/100×350=10.5

step3

we are told the investment is for 7years so we multiply 10.5 by 7 because 10.5 is only for 1year

10.5×7=73.5

step4

add the 73.5 to the 350 then you have your answer

3 0
3 years ago
A dealer offers a computer software program whose list price is $500 at a 19% discount. She will give an extra 3% discount if pa
Mekhanik [1.2K]

Answer:the selling price if payment is made in cash is $395

Step-by-step explanation:

The list price of the computer software program is $500

A dealer offers the computer software program at a 19% discount.

She will give an extra 3% discount if paid in cash. This means that the total discount in percentage if a customer paid in cash would be

19 + 3 = 21%

The value of the discount would be

21/100 × 500 = 0.21 × 500 = $105

Therefore, the selling price if payment is made in cash would be

500 - 105 = $395

3 0
3 years ago
Mikala bought an 18-kilogram bag of dog food. Her dogs eat 2 kilograms of food every 3 days. At this rate, how many days will it
guajiro [1.7K]

Answer:

27

Step-by-step explanation:

3 0
3 years ago
Other questions:
  • -5k+4(k+6)=-4(2k+1)...
    8·2 answers
  • What is the relationship between the 6s in the number 660472
    10·2 answers
  • Is -15 a whole number?
    12·2 answers
  • (Had to re-upload - Chose the wrong picture and couldn't edit.
    7·1 answer
  • Can you help me with numbers 1,2,3 I will mark you Brainiest please I need your help
    14·1 answer
  • I need to know how to solve this problem because I’m very confused and it doesn’t explain what it is or how to do it in my textb
    13·1 answer
  • What is the slope of the graph shown below?
    8·1 answer
  • an angled measures 140 less than the measure of its supplementary angle. what is the measure of each angles
    11·2 answers
  • 2. a=1,<br> If -a=1, then a =
    13·2 answers
  • URGENT !!! PLEASE HELP !!!
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!