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
grigory [225]
3 years ago
14

what is the answer for:   r = 9 ft r = 21 m d = 30 cm  d = 24 cm r = 15.2 in r = 16.01 ft    please answer them i just want the

answer like example the answer for r= 9 ft is 56.52 ft   thanks!!!    
Mathematics
1 answer:
Burka [1]3 years ago
8 0
r-a\ radius\ of\ the\ circle\\\\d-a\ diameter\ of\ the\ circle\\\\a\ circumference\ of\ the\ circle:2\pi r=d\pi\\\\r=9ft\to2\pi r=2\pi\cdot9=18\pi\approx18\cdot3.14=56.52\ (in)\\\\r=21\ m\to2\pi r=2\pi\cdot21=42\pi\approx42\cdot3.14=131.88\ (m)\\\\d=30cm\to d\pi=30\pi\approx30\cdot3.14=94.2\ (cm)\\\\d=24cm\to d\pi=24\pi\approx24\cdot3.14=75.36\ (cm)\\\\r=15.2\ in\to 2\pir=2\pi\cdot15.2=30.4\pi\approx30.4\cdot3.14=95.456\ (in)\\\\r=16.01\ ft\to2\pi r=2\pi\cdot16.01=32.02\pi\approx32.02\cdot3.14=100.5428(ft)
You might be interested in
What is the best estimate for 1,468
Vanyuwa [196]
The answer would be 1,500 because 68 is higher than 50 so it will round up to 1,500.

3 0
3 years ago
Need help asapdue today at 11 am
goblinko [34]

12 ×  8 = 96        3 × 3 = 9     96 - 9 = 87

(unlucky jasmine she does not have enough paint )

8 0
3 years ago
Can someone please solve this by graphing​
balu736 [363]

XY - X + 2Y -2 =X(Y-1) + 2(Y-1) = 2X(Y-1)

4 0
2 years ago
What is 2logx−logy+2logz written as a single logarithm? log(xz)^2/y log2x/2yz logx^2y/z^2 logx^2/yz^2
Klio2033 [76]

Answer: \log\dfrac{x^2z^2}{y}

Step-by-step explanation:

Properties of logarithm:

(i)\ \ n\log a = a^n\\\\ (ii)\ \ \log m +\log n =\log (mn)\\\\ (iii)\ \ \log m-\log n =\log\dfrac{m}{n}

Consider,

2\log x-\log y+2 \log z\\\\ =\log x^2-\log y+\log z^2\ \ \ \ \text{[By (i)]}\\\\= \log x^2+\log z^2-\log y\\\\=\log(x^2z^2)-\log y\ \ \ \ [\text{By } (ii) ]\\\\=\log(\dfrac{x^2z^2}{y})    \ \ \ \ [\text{By (iii)}]

3 0
3 years ago
grace rides her bike with a constant speed of 18 km/h how long will she take to travel a distance 72 kilometers
atroni [7]
If she rides her bike 18 km per hour
then it will take 4 hours to travel 72 km (72÷18)
the answer is 4
7 0
3 years ago
Other questions:
  • Carletta and Johnathan are entrepreneurs making mother boards for computers that are being manufactured by their friend, Dewey S
    10·1 answer
  • Use a factor tree to find the prime factorization of 36
    14·2 answers
  • If a circumference of a circle is 10 inches, then determine the area of the<br> circle.
    7·2 answers
  • Does anyone know the exponent rules
    14·1 answer
  • Ir[ Fairbanks, the temperature at 6:00 AM on Sunday is - 48°F. The weather forecast
    6·1 answer
  • Find the Sum of (n+8)+(n-12)
    13·1 answer
  • An arborist examine trees in an orchard to see if they were infected with a virus out of 450 trees 56% had the virus how many tr
    7·1 answer
  • 5<br> The slope of EF is<br> Which segments are perpendicular to EF?<br> Select each correct answer.
    5·1 answer
  • GUYS PLEASE HELP ME OMG EVERYONE KEEPS SKIPPING:(((
    6·1 answer
  • HELP WILL GIVE BRAINLEST QUICKKK SP and SR are tangent to circle Q. If SP = 10x - 18 and SR = 2x + 6, find x.
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!