What is 427.37.+5,348.18

Mathematics

1 answer:

insens350 [35]4 years ago

3 0

Answer:

Step-by-step explanation:

5775.55

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The radius of a circle is 8 miles. What is the length of a 90° arc?

Nookie1986 [14]

Answer:

12.56 miles

Step-by-step explanation:

$l = \frac{ \theta}{360 \degree} \times 2\pi \: r \\ \\ = \frac{ 90 \degree}{360 \degree} \times 2 \times 3.14 \times 8 \\ \\ = \frac{ 1}{4} \times 16 \times 3.14 \\ \\ = 4 \times 3.14 \\ = 12.56 \: miles$

Hence, length of arc = 12.56 miles

7 0

3 years ago

-13=r/9+8 <br> I suck at maths so if anyone could help with this problem it will help thank you!

otez555 [7]

Answer:

r = -189

Step-by-step explanation:

Let's make it easy,

-13=r/9+8

r/9 = -13-8

r/9 = -21

r = -21 × 9

r = -189

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Pretty sure it's 69 square inches.

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Paha777 [63]

Answer:

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