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nirvana33 [79]
3 years ago
5

The circumference of a circle is given by the formula C=2πr. Find r if the circumference is 396 meters and π is 22/7.

Mathematics
2 answers:
xeze [42]3 years ago
8 0

Answer:

The radius of the circle is 63 meters

Step-by-step explanation:

circumference of a circle is given by the formula C=2πr

It is given that,

circumference is 396 meters

<u>To find the radius of circle</u>

C=2πr         π= 22/7     C = 396

2*(22/7)*r  = 396

r = (396 * 7)/(2*22)

r = 63

Therefore the radius of given circle = 63 meters.

larisa86 [58]3 years ago
7 0

Answer:

r = 63 meters

Step-by-step explanation:

C=2πr

We know pi and C

396 =  2*22/7*r

396 = 44/7 *r

Multiply each side by 7/44 to isolate r

396*7/44 = 7/44 *44/7 *r

63 =r

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mariarad [96]

Answer:

D) 1

Step-by-step explanation:

When you start raising i to certain powers, you begin to notice a pattern.

i^1=i \\\\i^2=-1 \\\\i^3=-i \\\\i^4=1 \\\\i^5=i \\\\ i^6=-1 \\\\ i^7=-i \\\\i^8= 1

This cycle repeats forever. Since 84 is a multiple of 4, i^84 must be 1. Hope this helps!

7 0
4 years ago
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So it work like this
180-72= 108
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3 years ago
A web page design firm has two designs for an online hardware store. To determine which is the more effective​ design, the firm
elena55 [62]

Answer:

A. The explanatory variable is the number of items viewed. This explanatory variable is quantitative.

Step-by-step explanation:

The variable that we can change is called the Explanatory Variable.

The Response variable depends upon the explanatory variable, as we change the value of the explanatory variable the value of the response variable is also get changed.

When the data is in the form of numeric, it is called quantitative.

When the data is not in the numeric form, it is called qualitative.

Here, we have to determine which web page design is better and it depends on the number of the item viewed by a visitor to that site.

Thus, the Explanatory variable is the "number of items viewed".

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Hence, option (A) is correct.

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Ipatiy [6.2K]

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I think its b

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Diano4ka-milaya [45]

Let the third angle of the triangle be y.

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Notice that they both equal 180°. This means that they are the same thing, hence:

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I hope this clears up any confusion you might have. If not, feel free to leave a comment with your question.

6 0
3 years ago
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