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
QveST [7]
3 years ago
13

A farm uses a circular system to water the crops. The arm on the system (the radius) is 400 meters long. What area of land can i

t water? Use 3.14 to approximate pi.
Mathematics
2 answers:
ElenaW [278]3 years ago
8 0
To answer this question you would need to know the formula for the area of a circle, \pi r^{2}. You would start by squaring 400, getting 160,000. You would then multiply 160,000 by 3.14, getting 502,400 meters squared as your answer.
vodka [1.7K]3 years ago
3 0

Answer:

502,400

Step-by-step explanation:

You can find the area of a circle using the formula  

A = pi • r2.

You might be interested in
Which table does NOT represent a function?<br> A) A <br> B) B <br> C) C <br> D) D
atroni [7]

Answer: The answer is D

Step-by-step explanation: I just did the question.

7 0
3 years ago
Without calculating, which has a bigger volume. A cube that has a length, width, and height of 18 m. Or a sphere with a radius o
Evgesh-ka [11]

Weird. A period appears above this... huh.

Answer:

[Th]e cube has a greater value.

Step-by-step explanation:

What the word problem really wants us to get [is ]the question of 'Which is greater, A=6a^2 when 'a' [is] 18 or A=4\pir^2 when r = 9? And here's how to solve that.

Starting with the[ c]ube we have A=6a^2. A bit t[o]o simple, right?

A=6(18)^2 Substitute numbers.

A=6(324) Solve ex[p]onents.

A=1944 Mult[i]ply.

So w[e] know that the cube is 1944 meters cube[d ] in area. But what about the more [f]ormidable sphere? Fo[r] it we need a slightly m[o]re co[m]plicated formula, A=4\pir^2. However, instead of using the real pi I will be rounding to 3.14, since we have no calculator so anything more would take way too long and fry your[ bra]in.

A=4(3.14)(9)^2 Subst[i]tute numbers.

A=4(3.14)(81) Solve expone[n]ts.

A=12.56(81) Multip[ly].

A=1017.36 Multiply again[.]

Now, since I'm sure all of us can count, we know that 1944 is greater than 1017.36. Or in other words, the cube is bigger than the sphere.

And PLEASE don't copy this guys. Make your own iteration. Change it up!

3 0
3 years ago
Y=1/2x+2 y=1/3x+2 solve for graphing ​
madreJ [45]

Answer:

I plotted it out on the graph and here it is:

6 0
2 years ago
Mike's Music Soul 287 CDs on the first day of a two day sale the store so 96 more CD's on the second day then the first day how
almond37 [142]
The answer is 670.
this is because 96 plus 287 is 383.
so he sold 287 on the 1st day, and 383 on the second day.
383 plus 287 equals 670.
5 0
3 years ago
Which is a better estimate for the length of an ironing board? 1 millimeter 1 meter?
worty [1.4K]
1 meter would because 1 milimeter would be the size of your fingernail
8 0
3 years ago
Read 2 more answers
Other questions:
  • How to evaluate definite integral without the fundamental theorem of calculus?
    7·1 answer
  • I need help on this question
    14·1 answer
  • What is the value of g(x)=5x+1 when x=3
    6·1 answer
  • A phone number contains 7 digits. How many different numbers can be made using the digits 0–9 if the first digit is not 0 and al
    7·2 answers
  • The two cones below are similar. What is the value of x? If necessary, round your answer to two decimal places.
    14·2 answers
  • How do you solve 9!/5! ?
    8·1 answer
  • Can somebody help me find an equation to this ??
    11·1 answer
  • I need help quick!!!!
    9·2 answers
  • Which is the better buy?
    12·1 answer
  • You have got to find f(50)
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!