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2 years ago

WHAT IS THE EXACT VALUE OF PI ?

Mathematics

2 answers:

Katen [24]2 years ago

5 0

3.14159 is the correct answer

alekssr [168]2 years ago

3 0

Answer:

3.14159

Step-by-step explanation:

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The eights of the students in ms. Mill's class ride the bus.if there are 24 students in the class,how many students ride the bus

Zepler [3.9K]

Answer:do you mean 1/8th

Then the answer is 3

Step-by-step explanation:

24 .\. 1/8= 24/8 =3

3 0

4 years ago

A farmer in China discovers a mammal hide that contains 37% of its original amount of C-14. Find the age of the mammal hide to t

Naya [18.7K]

Answer: 54678 years

Step-by-step explanation:

This can be solved by the following equation:

$N_{t}=N_{o}e^{-\lambda t}$ (1)

Where:

$N_{t}=54\%=0.54$ is the quantity of atoms of carbon-14 left after time $t$

$N_{o}=1$ is the initial quantity of atoms of C-14 in the mammal hide

$\lambda$ is the rate constant for carbon-14 radioactive decay

$t$ is the time elapsed

On the other hand, $\lambda$ has a relation with the half life $h$ of the C-14, which is $5730 years$ :

$\lambda=\frac{ln(2)}{h}=\frac{ln(2)}{5730 years}=1.21(10)^{-4} years^{-1}=0.000121 years^{-1}$ (2)

Substituting (2) in (1):

$0.54=1e^{-(0.000121 years^{-1}) t}$ (3)

Applying natural logarithm on both sides of the equation:

$ln(0.54)=ln(1e^{-(0.000121 years^{-1}) t})$ (4)

$-0.616=-(0.000121 years^{-1}) t$ (5)

Isolating $t$ :

$t=\frac{-0.616}{-0.000121 years^{-1}}$ (6)

$t=54677.68 years \approx 54678 years$ (7) This is the age of the mammal hide

8 0

3 years ago

there are 4 triangles, 12 sqaures and 6 circles. What is the ratio of squares to circles? Simplify.

Yuri [45]

Answer:

12 to 6

12:6

Step-by-step explanation:

7 0

3 years ago

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Find the value of x.?

guajiro [1.7K]

Your answer is ≈ 19

Step-by-step explanation:

180 - 124 = 56

56 / 3 = 18.66666666666667

18.66666666666667 round it up...…

X = 19

<em>Hope this helps! Please let me know if you need more help or think my answer is incorrect. Brainliest would be MUCH appreciated. Have a wonderful day!</em>

3 0

2 years ago

Is 0.752 a rational number?

TiliK225 [7]

No, Bec it can not be divided by itself? Anyway no also Bec it’s a decimal

6 0

3 years ago

Read 2 more answers