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suter [353]
3 years ago
8

Which equation shows how the relationship between the circumference and the diameter of a circle is equivalent to π?

Mathematics
1 answer:
Natalija [7]3 years ago
3 0

Answer:

The answer to your question is: I think is letter C

Step-by-step explanation:

Formula of circumference

                                           C = 2πr

where

C = circumference

r = radius

d = diameter

and

r = d/2

then

                                        C = 2 π d/2

                                        C = πd

                                        π = C/d     It is a division

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Answer:

Breadth = 15 cm

Step-by-step explanation:

Area = length x breadth

315 = 21 x breadth

\frac{315}{21} = \frac{21}{21} \times breadth                 [ dividing both sides by 21 ]

15 = 1 \times breadth\\\\breadth = 15 \ cm

4 0
3 years ago
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Give the values of a, b, and c needed to write the equation's general form.<br>1/4x^2+5=0
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❧⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯☙

Let's solve your equation step-by-step.

\frac{1}{4} x^2+5=0

For this equation: a=0.25, b=0, c=5

0.25x^2 + 0x + 5 = 0

Step 1: Use quadratic formula with a=0.25, b=0, c=5.

x = \frac{-b ± \sqrt{b^2 - 4ac} }{2a}

x = \frac{-(0) ± \sqrt{(0)^2 -4 (0.25) (5)  } }{2(0.25)}

x = \frac{0 ± \sqrt{-5} }{0.5}

Answer : No Real Solutions.

❧⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯☙

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If this helped you, could you maybe give brainliest..?

Also Have a great day/night!

❀*May*❀

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Help! This is due tomorrow!
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