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My name is Ann [436]
3 years ago
6

Perimeter of a semi circle with diameter 30cm

Mathematics
1 answer:
Vsevolod [243]3 years ago
8 0

Answer:

77.12 cm to the nearest hundredth.

Step-by-step explanation:

The length of the curved part = 1/2 * 2 pi r

= 15 pi.

Total perimeter = 30 + 15pi

= 30 + 15*3.1416

= 77.124.

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Izracunaj opseg i povrsinu kruga upisanog u kvadrat stranice duljine 8 cm.
Nutka1998 [239]
(In English), your question would state the following:


<span>Calculate the circumference and circumference of the circle entered in a square 8 cm long.
</span>
So when finding the answer this this question, we know that the circumference would be the complete area of a circle.

So, I believe we would want to find what is the radius and the diameter that would make this circumference 8^c^m.

The radius would then be (1.274).
__________________________________________________________

Now in your own language (Croatian).

<span>Dakle, kad pronađemo odgovor na ovo pitanje, znamo da bi opseg bio cjelokupno područje kruga. Dakle, vjerujem da bismo željeli otkriti što je radijus i promjer koji bi ovaj opseg mogao učiniti 8cm. Radijus bi onda bio (1.274).</span>




6 0
3 years ago
Read 2 more answers
A random sample of 41 cars in the drive-thru of a popular fast food restaurant revealed an average bill of $19.55 per car. The p
Rashid [163]

Answer:

19.55\pm2.145

Step-by-step explanation:

We use the equation \bar x\pm z^*\sigma/\sqrt n, where \bar x=19.55, \sigma=6.33, n=41, and z^*=2.17. We obtain z^* from the z-score of a 0.97 confidence level.

8 0
3 years ago
4a to 3rd power b to 4power times b to 3rd power times 2b to 3rd power divided by 4b
ddd [48]

(4a^3b^4(b^3)(2b^3))/4b


4a^3b^3(b^2)(2b^2)/4

5 0
3 years ago
What is the combined weight of the zoo’s African elephant and the rhino
mojhsa [17]
What is the separate weight
4 0
3 years ago
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What is the range of the function f(x) = 3x2 + 6x – 8?
oee [108]

f(x) is a quadratic equation with the x-side squared and a is positive which means that the graph of the function is a parabola facing up. The range of f(x) is given by {y|y ≥ k}, where k is the y-coordinate of the vertex.

, written in vertex form is

, where (h, k) = (-1, -11)

Therefore, range ={y|y ≥ -11}

3 0
3 years ago
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