3 years ago

Find the circumference of a circle that has a diameter of 4 m..

Mathematics

1 answer:

Gnesinka [82]3 years ago

6 0

If diameter = 4,

then radius = 4/2 = 2m.

Formula for the Circumference of a Circle = 2 $\pi$ r

2 $\pi$ r = 2 x 22/7 x 2

2 x 22/7 x 2 = 4 x 22/7 = 88/7

= 12.5714286 cm.

It can be also be rounded up into 12.6 cm.

So, the Circumference of the Circle is 12.6 cm or 12.5714286 cm.

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the measure of two angles of a triangle are 35 and 45 what is the measure of the third angle of the triangle

loris [4]

<span>If you pull the edges of the right angle down it makes a straight line.

Therefore, the angles in a triangle add up to 180°

So, 35 + 45 = 80

Then, 180 - 80 = 100

The third angle = 100° </span>

4 0

2 years ago

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An animal reserve has 20,000 elk. The population is increasing at a rate of 8% per year. This can be modeled by the function P(t

Scorpion4ik [409]

Answer:

The answer would be 31,737 elks.

Step-by-step explanation:

You would solve this by multiplying 1.08 by the power of 6 which equals 1.586874322944. You would then multiply this number by 20,000 which equals 31,737.4865 but since you can’t have .4865 of an elk the answer is just 31,737.

I hope this helps

8 0

2 years ago

Differentiate f(x) = \frac{x^{3}-4 x+1}{x^{3}}.

miv72 [106K]

$f(x) = \frac{x^{3}-4 x+1}{x^{3}}\\
f'(x)=\frac{(3x^2-4)\cdot x^3-(x^3-4x+1)\cdot3x^2}{x^6}\\
f'(x)=\frac{x^2(3x^3-4x-3x^3+12x-3)}{x^6}\\
f'(x)=\frac{8x-3}{x^4}\\
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