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
8_murik_8 [283]
2 years ago
15

The area of a circle is 77.28m2. Find the length of the diameter rounded to 1 DP.

Mathematics
1 answer:
allochka39001 [22]2 years ago
4 0

Answer:diameter=9.92m

Step-by-step explanation:

Area=77.28

π=3.14

Area=π x (d/2)^2

77.28=3.14 x (d/2)^2

Divide both sides by 3.14

77.28/3.14=(3.14x(d/2)^2)/3.14

24.6=(d/2)^2

Take them square root of both sides we get

d/2=√(24.6)

d/2=4.96

d=4.96 x 2

d=9.92

You might be interested in
Are these numbers rational or irrational? √10 (square root of 10) √16 (square root of 16) 52% 1.235 1. Rational 2. Irrational pl
77julia77 [94]

Step-by-step explanation:

any rational number can be expressed as a/b, with a and b being integer numbers, and b different to 0.

-7 = -7/1 rational

sqrt(10) irrational (because there is no rational number multiplied by itself that results in 10)

sqrt(16) = sqrt(4×4) = 4 = 4/1 rational

52% = 52/100 rational

1.235 = 1235/1000 rational

5 0
2 years ago
Solve using elimination. <br> 2x + y = 5<br> x - 3y = 6
Umnica [9.8K]

Answer:

then substitute y in eq 1 to get x

hope this helped you

Please mark as the brainliest (ㆁωㆁ)

3 0
2 years ago
According to the Rational Root Theorem, which number is a potential root of f(x) = 9x8 + 9x6 – 12x + 7?
bogdanovich [222]

Answer:

Seven-thirds

Step-by-step explanation:

The give equation is f(x)=9x^8+9x^6-12x+7.

The leading coefficient is 9

The constant term is 7

According to the rational root theorem, the ratio of factors the constant terms to that of the coefficient of the leading term are all possible rational roots of the given polynomial.

Base on this theorem, \frac{7}{3} or seven thirds is a potential root because the numeration is a factor of 7 and the denominator is a factor of 9.

5 0
3 years ago
Read 2 more answers
Which of the following is an angle shown in the drawing?
DanielleElmas [232]

Answer: All of them besides <AEB

Step-by-step explanation:

Everyone of those can be measured but the <AEB therefore all the answers besides <AEB is correct

5 0
3 years ago
When solving negative one over five(x − 25) = 7, what is the correct sequence of operations?
Rufina [12.5K]
Add 25 to both sides x-25 +25 =7 +25
x =32 
7 0
3 years ago
Other questions:
  • Regroup tens as hundreds
    15·1 answer
  • Find the area **Number Only** Thanks
    8·1 answer
  • larry,mary and terry each had a full glass of juice. larry drank 3/4 of his mary drank 3/8 of hers larry drank 3/4 of his terry
    9·1 answer
  • Find the value of x.
    7·1 answer
  • Which of these graphs represent a rate of change of 4 ?
    5·2 answers
  • Write the ratio of the first measurement to the second measurement. Compare in millimeters.
    6·1 answer
  • A miniature portrait of Frosty the Snowman is square and has an area of 100 square
    13·1 answer
  • Cos Y=?<br><br> 5/13<br><br> 5/12<br><br> 12/13
    6·1 answer
  • GIVING BRAINIEST!!!!!
    14·1 answer
  • PLEASE ITS DUE SOON!
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!