Find the exact circumference. r = 6 mm, C = ?

Mathematics

1 answer:

Kazeer [188]2 years ago

5 0

$C=2 \pi r \\ C=2 \pi 6 \\ C=12 \pi$

You might be interested in

Which expression is equivalent to (4^2)(4^5)

Dominik [7]

Answer: Sorry I don't know the answer but I recommend an app that will help you is called Mathpapa is really helpful and have helped me get A on test and homework

Step-by-step explanation: is htis one https://www.mathpapa.com/algebra-calculator.html

5 0

3 years ago

Assume you have such a watch. if a minimum of 18.0% of the original tritium is needed to read the dial in dark places, for how m

laila [671]

Given that the half life of 3H is 12.3 years.

The amount of substance left of a radioactive substance with half life of $t_{ \frac{1}{2} }$ after t years is given by

$N(t)=N_0\left(\frac{1}{2} \right)^{ \frac{t}{t_{\frac{1}{2}} }$

Therefore, the number of years it will take for 18% of the original tritinum to remain is given by

$18 \% = 100 \% \left(\frac{1}{2} \right)^{ \frac{t}{12.3}} \\ \\ \Rightarrow\left(\frac{1}{2} \right)^{ \frac{t}{12.3}} =0.18 \\ \\ \Rightarrow\frac{t}{12.3}\ln\left(\frac{1}{2} \right)=\ln0.18 \\ \\ \Rightarrow\frac{t}{12.3}= \frac{\ln0.18}{\ln\left(\frac{1}{2} \right)} = \frac{-1.715}{-0.6931} =2.474\\ \\ \Rightarrow t=2.474(12.3)=30.4$

Therefore, the number of <span>years that the time could be read at night is 30.4 years.</span>

5 0

3 years ago

Quick i need help so bad :(

Vanyuwa [196]

There are 4 triangles with base of 5 and height of 8.4

Area of triangle = 1/2 x base x height

Area of triangle = 1/2 x 5 x 8.4 = 21 m^2

Multiply by 4 = 21 x 4 = 84 m^2

Area of the base = length x width = 5 x 5 = 25 m^2

Total area = 84 + 25 = 109 m^2

8 0

3 years ago

The table shows value for the function f, while the graph shows function g.

Sauron [17]

Answer:

Step-by-step explanation:

A is the right answer

f has the greater slope, 3. The slope of g is 2.

plz mark me Brainliest

3 0

3 years ago

Dante and Tania are both math tutors. The amount Dante charges for a session h hours long is represented by the function (h) =

Ksivusya [100]

Answer:

Step-by-step explanation:

5 0

3 years ago