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
kati45 [8]
3 years ago
13

Can somebody help me with these to questions how do you find the area of the circle

Mathematics
1 answer:
Grace [21]3 years ago
6 0

13)

Circumference (C) = 2π·r

11π = 2π·r

11/2 = r

******************************

Area (A) = π·r²

             =  π·(11/2)²  

            = 121π/4

           ≈ 94.985 in²

14)

diameter = 2r

          42 = 2r

           21 = r

*******************

Area (A) = π·r²

             =  π·(21)²  

            = 441π

           ≈ 1384.74 in²

***************************

$280/1384.74 in²

x = $0.20

Answer: about 20 cents per square inch

 



                     

You might be interested in
The customer who purchased the items for 37.85 started out with 52.02 in his pocket. He decided to use his leftover money to buy
Rudik [331]

Answer:28 bags with 17 cents left over

Step-by-step explanation: First, subtract the amount of 37.85 from what he started out with, 52.02. You should get 14.17.

Then, if we have 14 whole dollars and the bags each cost 50 cents, then we can just multiply 14 by 2, since each dollar equals 50 cents times 2.

EX: $1=50 cents x2. So 14 dollars x2 would be like saying the first amount 50 cents doubled. You should get 28 bags, with 17 cents left over :). Let me know if this makes sense! I really hope this helps you.

6 0
2 years ago
Read 2 more answers
Please help I’m stressing
Nookie1986 [14]
It’s AAS because there are two congruent angles and one congruent side.
5 0
3 years ago
Find the equation of the line that passes through the point left (-9,12) and is perpendicular to the line y=3/2x-1/2. Write the
ohaa [14]

Answer:

The answer to your question is: y = -2/3 x + 18

Step-by-step explanation:

Data

Point = (-9, 12)

line   y = 3/2x -1/2     perpendicular

Process

The line must be perpendicular to the line given. Then,

slope is the line given = 3/2, we change it because the lines must be perpendicular ,

New slope         M =  -2/3

New line       y-y1 = m(x - x1)

                     y - 12 = -2/3 (x + 9)             Substitution

                   3( y - 12) = -2(x + 9)

                   3y - 36 = -2x - 18                 Simplify

                   3y = -2x - 18 + 36

                   3y = -2x + 18

                      y = -2/3 x+ 18                      Result

8 0
2 years ago
How much would $600 invested at 8% interest compounded continuously be worth after 3 years? Round your answer to the nearest cen
eduard

Answer:

yes

Step-by-step explanation:

You just do it

5 0
2 years ago
A robot’s height is 1 meter 20 centimeters. How tall is the robot in millimeters?
Flura [38]

Answer:

A

Step-by-step explanation:

There are 1000 mm in one meter

and there are 10 mm in one cm

so

1000 + 20(10) = 1200mm

Therefore the answer is 1200mm

8 0
2 years ago
Read 2 more answers
Other questions:
  • doug has 45 coins worth $9.00. The coins are all quarters or dimes. How many of each type of coin dose doug have?
    5·1 answer
  • The Extreme Rock Climbing Club planned a climbing expedition. The total cost was $1400, which was to be divided equally among th
    8·2 answers
  • In ​ kite PQRS ​, TS=6 cm and TP=8 cm.
    8·2 answers
  • The diameter of the larger circle is 12.5 cm. The diameter of the smaller circle is 8.5 cm.
    5·1 answer
  • SOMEONE SEND HELPPP​
    7·1 answer
  • What is Eight by the power of negative two
    5·2 answers
  • Help!! answer needed fast plz!
    11·1 answer
  • Can y’all plz solve this
    9·2 answers
  • Can exponents be integers
    13·2 answers
  • Which graph represents this system? y=5x+3 3 y=zx-1​
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!