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N76 [4]
3 years ago
13

If a circle has a circumference of 81.64 cm, what is the radius?

Mathematics
2 answers:
ipn [44]3 years ago
8 0

Answer:13cm

Step-by-step explanation:

Over [174]3 years ago
8 0

Answer:

c = Circumference=pid= 81.64   To find the radius of a circle you can just divide the diameter by 2.

pi = 3.14

d = diameter=c/3.14                  Pi is always 3.14 or 22/7.

d = 81.64/3.14

d = 26

r= radius= 26/2

radius=13 cm

Step-by-step explanation:

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What do you notice about the table inputs for the graph of √x?
Airida [17]

Answer:

See below

Step-by-step explanation:

When we talk about the function f(x)=\sqrt{x}, the domain and codomain are generally defaulted to be subsets of the Real set. Once $f:[0,\infty)\to [0,\infty)$ and  $f\subseteq [0,\infty)\times [0,\infty)$ such that $(x,y_1)\in f\wedge(x,y_2)\in f \Rightarrow y_1=y_2$  for $f(x)=\sqrt x$. Therefore,

\[\sqrt{\cdot}: \mathbb R_{\geq 0} \to \mathbb R_{\geq 0} \]

\[x \mapsto \sqrt{x}\]

But this table just shows the perfect square solutions.

4 0
2 years ago
Help please not much time!!!!
Rzqust [24]

Answer:

I'm here! This Problem is easy :) The answer is 4

Step-by-step explanation:

2x+10=5x−2

<em>Subtract </em>5x from both sides

2x+10−5x=−2

<em>Combine</em> 2x and −5x to get −3x.

−3x+10=−2

Subtract 10 from <em>both sides.</em>

−3x=−12

<em>Divide</em> both sides by −3.

Divide −12 by −3 to get 4.

x=\frac{-12}{-4}

x = 4 (D)

7 0
3 years ago
A circular swimming pool is 21 feet in diameter. What is the circumstances of the swimming pool?
Reptile [31]
Hello there!


21 * 3.14 = 65.94


Thus,

The circumstances of the swimming pool is 65.94
4 0
3 years ago
The sum of x and 6.5 is 11.9. Find<br> he value of x.
pashok25 [27]

Answer:

5.4

Step-by-step explanation:

Sum = 11.9

One decimal = 6/5

x = 11.9 - 6.5

  = 5.4

Therefore x is 5.4 :)

8 0
3 years ago
Please help me <br><br> (3x^7-5x^5+10x^3-4x^2+1) divided by (x^2-18) is
bagirrra123 [75]

Answer: (3x^7-5x^5+10x^3-4x^2+1)÷(x^2-18)= 5x^1÷-9

4 0
3 years ago
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