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vlada-n [284]
3 years ago
13

Which is the area of a circle with a diameter of 7 units? (use 3.14 for pi)​

Mathematics
1 answer:
Alex777 [14]3 years ago
3 0

Answer:

The area of circle = πR ^2

And diameter = 7 units

By interchanging d in R =d/2 = R =7/2 = 3.5

Step-by-step explanation:

<h3>πR ^2 =3.14 x (3.5)^2</h3><h3> =3.14 x 3.5 x 3.5</h3><h3> =38.465 (unit)^2 <em><u>Answer</u></em></h3>

<em><u>Hope</u></em><em><u> </u></em><em><u>it's help</u></em><em><u> </u></em><em><u>^_^</u></em>

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Can someone answer this question for me​
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Step-by-step explanation:

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Step-by-step explanation:

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3 years ago
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Suppose we want a 90% confidence interval for the average amount of time (in minutes) spent per week on homework by the students
ki77a [65]

Answer: 482

Step-by-step explanation:

Formula to find the sample size is given by :-

n= (\dfrac{z^*\times \sigma}{E})^2                                    (1)

, where z* = critical z-value (two tailed).  

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As per given , we have

Margin of error : E= 3

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4 years ago
The image of the point (1, 9) under a translation is (4, 10) . Find the coordinates of the image of the point (- 9, - 2) under t
tresset_1 [31]

Answer:

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Step-by-step explanation:

Let's find the rule of that transformation:

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3 years ago
25 POINTS PLEASE HELP
Minchanka [31]

Answer:

corresponding angles

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alternative interior

4=5

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3 years ago
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