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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.

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Please help me!!!!! (25 points)<br> Right answers only!!!!!!
Sunny_sXe [5.5K]
The correct answer would be 8
6 0
3 years ago
Read 2 more answers
lauren spent $3.26 for lunch on Tuesday she spent $1.98 on Wednesday and $2.74 on Thursday list the price in ascending order​
solmaris [256]

Answer:

1.98, 7.74, 3.26

Step-by-step explanation:

I listed them from Smalest to largest 1.98 being samller than 2.74 and 2.74 being smaller than 3.26.

Hope this helped :)

7 0
3 years ago
A traffic officer is compiling information about the relationship between the hour or the day and the speed over the limit at wh
SpyIntel [72]

Answer:

The correlation between hour of the day and the speed over the limit at which the motorist is ticketed is weak positive correlation.

Step-by-step explanation:

The correlation coefficient is a statistical degree that computes the strength of the linear relationship amid the relative movements of the two variables (i.e. dependent and independent).It ranges from -1 to +1.

The types of correlation coefficient are:

  • +1 (-1) : Perfect positive (negative) correlation
  • 0 to 0.30(-0.30) : Weak positive (negative) correlation
  • 0.30(-0.30) to 0.70(-0.70) : Moderate positive (negative) correlation
  • 0.70(-0.70) to 1 (-1) :  Strong positive (negative) correlation

The correlation coefficient value between the hour of the day and the speed over the limit at which the motorist is ticketed is:

<em>r</em> = 0.12.

The value of <em>r</em> lies between:

0 < 0.12 < 0.30

Thus, the correlation between hour of the day and the speed over the limit at which the motorist is ticketed is weak positive correlation.

3 0
3 years ago
In order to win a quiz contest, olga must score more than 400 points. She earns 12 points for each right answer, and loses 4 poi
Ket [755]

The inequality that represents the number of right answers (r) and wrong answers (w) Olga can give to win the contest is:  3r-w>100

<u><em>Explanation</em></u>

Number of right answers is  r and number of wrong answers is  w

Olga earns 12 points for each right answer and loses 4 points for each wrong answer.

So, total points earned for r right answers =12r

and total points lost for w wrong answers =4w

That means, <u>her score will be</u>:  (12r-4w) points.

In order to win the quiz contest, Olga must score <u>more than 400 points</u>. So, the inequality will be.......

12r-4w>400\\ \\4(3r-w)>400\\ \\  3r-w>100

4 0
3 years ago
Identify the model that shows 2 items being divided equally among 3 people. How much will each person have?
Fittoniya [83]

Answer:

2/3 or 6/9

Step-by-step explanation:

4 0
3 years ago
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