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
Jobisdone [24]
2 years ago
12

Find the area and the circumference of a circle with diameter 3 ft.

Mathematics
1 answer:
____ [38]2 years ago
3 0

Step-by-step explanation:

circumference of a circle :

2×pi×r

area of a circle

pi×r²

r(radius) is diameter/2. = 1.5ft

we shall assume 3.14 to be pi.

so,

circumference is

2 × 3.14 × 1.5 = 3.14 × 3 = 9.42 ft

area is

3.14 × 1.5² = 3.14 × 2.25 = 7.065 ft²

You might be interested in
A circle has a radius of 3it has an arc with a 20 degree central angle
alexandr402 [8]

Answer:

Step-by-step explanation:

The circumference of the circle is 6π inches  

The length of the arc is (20/360)×6π = 1.04 inches  

(The complete circumference would cover 360°. Angle ALB is 20°)

7 0
3 years ago
Hi! can you please help me and show me how you got your answer? thank you!
Kamila [148]

Answer:

Step-by-step explanation:multipy -4x and 4 by 2 were the 8x and the -8x would cancel then add and bring down answer of x=15

5 0
3 years ago
Simplify this expression.<br> (100 + 4z)20
Serga [27]
The answer is 2000+80z
7 0
2 years ago
Read 2 more answers
Yoko is trying to save money for a new bicycle. She sets up a budget as shown below. Yoko’s Monthly Budget Description Income Po
KonstantinChe [14]

Answer:

$85

Step-by-step explanation:

<u>Earning:</u>

  • $125 + $55 = $180

<u>Spending:</u>

  • $25 + $10 + $25 + $35 = $95

<u>Amount available for saving:</u>

  • $180 - $95 = $85
5 0
3 years ago
Read 2 more answers
What is 3 tenths multiplied by 100?
Tamiku [17]
.3 (100) = moving the decimal to the right 2 times because of the two zero's in '100'
So .3 (100)= 30
3 0
3 years ago
Other questions:
  • a rectangular prism is 11 3/5 meters long and 9 meters wide and 12 1/2 meters high what is the volume in cubic meters of the pri
    11·2 answers
  • Elana owns a consulting business that helps software companies market their services to school districts. She earns an average o
    10·1 answer
  • Help i'm confused.....
    6·1 answer
  • Chloe has enough sand to fill a sandbox with an area of 36 square units. She wants the outer edges of the sandbox to use as litt
    15·1 answer
  • 3х + y = — 9<br> y = 5х +7
    13·2 answers
  • A scalene triangle has a perimeter of 18a-14. One side is 10a+1; another side is 5a-10. What is the third side?
    8·1 answer
  • Math please help im failing this class its algebra
    6·2 answers
  • 3.1 Factorise completely<br><br>3.1.2 3x2 - 2x - 8​
    13·2 answers
  • Triangle EFG is dilated by a scale factor of 5.
    10·1 answer
  • Find the volume of the rectangular prism below 3.6ft, 2.7ft, 8.1ft
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!