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
Lelechka [254]
2 years ago
7

The area of a circle is 132.7 square cm. Find the diameter.

Mathematics
1 answer:
hram777 [196]2 years ago
6 0

13 cm (approximately)

Step-by-step explanation:

Let the radius of the circle be 'r'.

Area of the circle = πr²

=> 132.7 = (22/7) r²

=> 6.5 ≈ r

Therefore, diameter = 2radius = 2(6.5) = 13 cm

You might be interested in
Please see the image and help with this homework problem. thank you!
dimulka [17.4K]

we have the function

E=\sin \frac{\pi}{14}t

Part a

For t=7

substitute in the given function

\begin{gathered} E=\sin \frac{\pi}{14}7 \\ E=1 \end{gathered}

For t=14

\begin{gathered} E=\sin \frac{\pi}{14}14 \\ E=0 \end{gathered}

For t=21

\begin{gathered} E=\sin \frac{\pi}{14}21 \\ E=-1 \end{gathered}

For t=28

\begin{gathered} E=\sin \frac{\pi}{14}28 \\ E=0 \end{gathered}

For t=35

\begin{gathered} E=\sin \frac{\pi}{14}35 \\ E=1 \end{gathered}

Observation: The values of E varies from -1 to 1, including the zero

Part B

Remember that

The Period goes from one peak to the next

so

Period=2pi/B

B=pi/14

Period=(2pi)/(pi/14)=2pi*14/pi=28

<h2>the period is 28 days</h2>
6 0
1 year ago
Select from the drop-down menus to correctly identify whether the given operation is closed or not closed with respect to each s
Tatiana [17]

Answer:

Real numbers are "closed" under multiplication

Irrational numbers are "not closed" under division

Integers are "closed" under subtraction

Positive ration numbers are "closed"

Hope this helps! :)

6 0
2 years ago
Solve for y 2x-5y=10
scZoUnD [109]

Answer:

y = 2/5x - 2

Step-by-step explanation:

Step 1: Write equation

2x - 5y = 10

Step 2: Solve for <em>y</em>

  1. Subtract 2x on both sides: -5y = 10 - 2x
  2. Divide both sides by -5: y = -2 + 2/5x
  3. Rewrite: y = 2/5x - 2
6 0
3 years ago
Read 2 more answers
Find the approximate volume of a cylinder that has a radius of 4 inches and a height of 6 inches. Use 3.14 for Pie
sattari [20]
Answer: 301.44
Explanation:
V = πr^2•h

3.14•4^2 • 6
3 0
2 years ago
I Need Help Quickly Please And Thank You
forsale [732]
Step 2: it should be P-2x, not +.

Hope this helped :)
7 0
1 year ago
Read 2 more answers
Other questions:
  • One number is 8 more than another number, and their sum is 20. Find the numbers.
    14·2 answers
  • Mrs. Adams wants to buy candy bars for her 5th grade class. If there are 24 students in the
    15·2 answers
  • Find the value of the variable and YZ if Y is between X and Z
    8·2 answers
  • What is the solution to this system of linear equations? y − 4x = 7 2y + 4x = 2
    15·1 answer
  • The price of a bag of candy is a linear function of the amount of candy in the bag. A bag containing 25 pieces costs $0.99 and a
    10·1 answer
  • What is the value of f(−3)?
    7·1 answer
  • During the day, the temperature in Nome, Alaska rose 35 degrees. The low temperature for that day is -22 degrees. What was the h
    9·1 answer
  • Compute the face value of a 90-day promissory note dated October 22, 2018 that has a maturity value of $76,386.99 and an interes
    5·1 answer
  • A hotel offers teo activity packages. One costs $192 and includes 3h of horsebackriding and 2h of parasailing. The second costs
    8·1 answer
  • the graph of f(x) shown below resembles the graph of g(x)=x^2 but it has been changed somewhat which of the following could be t
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!