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
Reika [66]
3 years ago
5

The area (A of a circle with a radius of ris given by the formula A = 772 and its diameter (d) is given by d = 27. Arrange the e

quations in
the correct sequence to rewrite the formula for diameter in terms of the area of the circle.
d² = 24
d = VZA
A = 41d2
d =
4A
d2
Mathematics
1 answer:
lions [1.4K]3 years ago
4 0

Answer:

A = πr² ← r is the radius and r = \frac{1}{2} d ← d is the diameter

Hence

π (\frac{1}{2} d)² = A, that is

\frac{d^2\pi }{4} = A ( multiply both sides by 4 )

d²π = 4A ( divide both sides by π )

d² = \frac{4A}{\pi } ( take the square root of both sides )

d = \sqrt{\frac{4A}{\pi } }

You might be interested in
Given that y varies inversely with x, if x =7 and y = 4, what is y when x = 2?
AysviL [449]

Answer:

y = 14

Step-by-step explanation:

y ∝ \frac{1}{x}

=> y = \frac{k}{x}     -------------(1)

<em><u>Where k is the constant of proportionality</u></em>

Now,

x = 7, y = 4

<em>Putting in (1)</em>

4 = \frac{k}{7}

So,

=> k = 28

Now y = ? when x = 2

<em>Putting x and k in (i)</em>

y = \frac{28}{2}

y = 14

3 0
2 years ago
Read 2 more answers
What percent of 80 is 28
serious [3.7K]

Answer:

35%

Step-by-step explanation:

easy way to remember: \frac{28}{80} *1 00

= 0.35 *100

= 35%

5 0
3 years ago
Read 2 more answers
What do large circus animals wear to keep their legs warm
VMariaS [17]
If it is a punchline the answer would be elepants. If not a punchline animals can keep themselves warm with thick skin or feathers.
8 0
3 years ago
WOI
Alexxandr [17]
He would run a 1=dx jsnsissnsnjss
3 0
3 years ago
If you answer God will bless you:
VashaNatasha [74]

Answer:

600 m³

Step-by-step explanation:

Given:

  • length of swimming pool = 30 m
  • width of swimming pool = 10 m
  • depth at deep end = 3 m
  • depth at shallow end = 1 m

To find the volume of the water in the pool, find the area of a cross section (see attached image) and multiply it by the width of the pool.

<u>Area of cross section</u>

= area of rectangle - area of triangle

= (3 × 30) - [1/2 × 30 × (3 - 1)]

= 90 - 30

= 60 m²

<u>Volume of pool</u>

= area of cross section × width

= 60 × 10

= 600 m³

6 0
2 years ago
Other questions:
  • A box in a certain supply room contains four 40w, five 60w, and six 75w light-bulbs. suppose that three bulbs are randomly selec
    12·1 answer
  • Answer this please! This is a lightshot/picture please answer and you shall be greeted with 10PTS!!
    15·1 answer
  • Choices for Question #1:
    8·1 answer
  • Tickets for a community theater production cost $6
    9·1 answer
  • I have no clue how to do this, I've look all over the book and still dont understand it
    11·1 answer
  • PLS HELP QUICK PLS PLS 13 POINTS
    5·1 answer
  • 8) Factor out the Greatest Common Factor to write an equivalent expression: 14x + 42 *
    14·1 answer
  • Can somebody help me solve
    8·1 answer
  • Which of these skills do you think you could teach someone else? Select all that apply.
    11·1 answer
  • Geometry question need explanation on finding the answer
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!