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bonufazy [111]
3 years ago
11

The circumference of a circle is 29x inches. Find the radius.

Mathematics
1 answer:
Lena [83]3 years ago
4 0

Answer:

r = \frac{29x}{2\pi }

x = \frac{2\pi r}{29}

Step-by-step explanation:

C = 2\pir

29x = 2\pir  --------- (i)

divide both sides of (i) by 2\pi

r =  \frac{29x}{2\pi }

but when you divide both sides of (i) by 29, you get

x = \frac{2\pi r}{29}

         

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Alekssandra [29.7K]

Answer:

-10a^2+25ab-15ac+12a+12b-2c

Step-by-step explanation:

(7a+5b-2c)+(5a+7b)+(2a-7c)+(2a-5b+3c)

Distribute:

=7a+5b-2c+5a+7b+(2a)(2a)+(2a)(-5)+(2a)(3c)+(-7a)(2a)+(-7a)(-5b)+(-7a)(3c)

=7a+5b-2c+5a+7b+4a^2-10ab+6ac-10a^2+35ab-21ac

Combine all like terms:

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6 0
3 years ago
Help I’ll give you 30 points
Gnesinka [82]

Answer:

a) 16.25 centimeters

b) 6.8 centimeters

Step-by-step explanation:

We can set up a proportion for both of these problems.

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Since the triangles are similar, we have an equation:

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b)

We can do same thing:

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Hope this helps!

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3 years ago
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3 years ago
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Answer:

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