All categories

3 years ago

Please help thanks!!!

Mathematics

1 answer:

lora16 [44]3 years ago

3 0

$probablity \: of \: \: six = 29 : 150$

<h2>hope it helps you ❣❣ </h2>

<h2>Mark me as brainliest</h2>

in fraction=29/150

You might be interested in

WHOEVER ANSWERS CORRECTLY I'LL GIVE BRAINLIEST!!!!!!!!!!!

dsp73

The answer will be
1/64
———————————————————————

4 0

3 years ago

Read 2 more answers

The radioactive isotope of lead, Pb-209, decays at a rate proportional to the amount present at time t and has a half-life of 3.

blagie [28]

Answer:

$N(t) =N_o (\frac{1}{2})^{\frac{t}{t_{1/2}}}$

Where $t_{1/2}= 3.3 hr$ represent the half life and the intial amount would be $N_o = 1$

And we want to find the time in order to have a 95% of decay so we can set up the following equation:

$0.05 = 1 (0.5)^{t/3.3}$

If we apply natural log on both sides we got:

$ln(0.05) = \frac{t}{3.3} ln (0.5)$

And solving for t we got:

$t= 3.3 *\frac{ln(0.05)}{ln(0.5)}= 14.26$

So then would takes about 14.26 hours in order to have 95% of the lead to decay

Step-by-step explanation:

For this case we can define the variable of interest amount of Pb209 and for the half life would be given:

$N(t) =N_o (\frac{1}{2})^{\frac{t}{t_{1/2}}}$

Where $t_{1/2}= 3.3 hr$ represent the half life and the intial amount would be $N_o = 1$

And we want to find the time in order to have a 95% of decay so we can set up the following equation:

$0.05 = 1 (0.5)^{t/3.3}$

If we apply natural log on both sides we got:

$ln(0.05) = \frac{t}{3.3} ln (0.5)$

And solving for t we got:

$t= 3.3 *\frac{ln(0.05)}{ln(0.5)}= 14.26$

So then would takes about 14.26 hours in order to have 95% of the lead to decay

4 0

3 years ago

-5 = -y - 3x Write the equation in slope-intercept form. Please help me. :)

DaniilM [7]

Answer:

y = -3x + 5

Step-by-step explanation:

You want it in y = mx + b form

-5 = -y - 3x

Add y to both sides

-5 + y = -y + y - 3x

-5 + y = -3x

Add 5 to both sides

- 5 + 5 + y = -3x + 5

y = -3x + 5

3 0

2 years ago

A survey was given to people who own a certain type of car. What percent of the people surveyed were completely satisfied with t

suter [353]

The blue one completely satisfied

8 0

3 years ago

What is the value of a?

Fittoniya [83]

$\text{We have:}\\\\f(x)=\dfrac{a}{x^3}\to y=\dfrac{a}{x^3}\\\\\text{and the point}\ \left(2,\ \dfrac{5}{4}\right)\to x=2,\ y=\dfrac{5}{4}.\\\\\text{Substitute:}\\\\\dfrac{5}{4}=\dfrac{a}{2^3}\\\\\dfrac{5}{4}=\dfrac{a}{8}\qquad\text{multiply both sides by 8}\\\\a=\dfrac{5}{\not4_1}\cdot\not8^2\\\\\boxed{a=10}$

3 0

4 years ago