All categories

3 years ago

Based on the graph, what can you say about the amount of time it will take for the strontium-90 to decay completely?

Biology

1 answer:

olganol [36]3 years ago

7 0

It'll take an infinite amount of time.

The function seems to be f(x)=100(1/2)^x, which won't ever result in 0.

You might be interested in

When you sweat, what body systems are interacting?

Anni [7]

how much sweat is released by each gland is determined by many factors, including gender, genetics, environmental conditions, age or your fitness level. they are also triggered by stress, anxiety or fluctuating hormones.

7 0

3 years ago

small group of 100 people decide to isolate themselves from the world and move to a small and remote deserted island. Out of thi

irina [24]

Answer:

Frequency of p $= 0.684$

Frequency of p $= 0.316$

Number of individuals with homozygous dominant (AA) $= 47$

Number of individuals with heterozygous (Aa) $= 43$

Number of individuals with homozygous recessive (aa) $= 10$

Explanation:

Out of 100 people, 10 have albino skin (aa)

So, the frequency of homozygous recessive individuals $(q^{2})$ is $\frac{10}{100} = 0.1$

Now, q will be

$= \sqrt{q^{2} } = \sqrt{0.1} \\= 0.316$

As per Hardy Weinberg's equation -

$p + q = 1$

Substituting the value of q in above equation, we get -

$p + 0.316 = 1p = 1 -0.316\\p = 0.684$

Now the frequency of homozygous dominant (AA) will be

$p^{2} = 0.684^{2} \\= 0.467$

Hence, out of 100 people $0.467 * 100 = 46.7 or 47$ people are homozygous dominant (AA)

Like wise out of 100 people $0.1 * 100 = 10$ people are homozygous recessive (aa)

As per As per Hardy Weinberg's equation-

$p^{2} + q^{2} + 2pq = 1\\$

Substituting the values in above equation, we get -

$0.467 + 0.316 + 2pq = 1\\2pq = 1 -( 0.467+ 0.1)\\2pq = 0.433$

So, out of 100 people $0.433 * 100 = 43.3 or 43$ people are heterozygous (Aa)

7 0

3 years ago

Which of the following organelles is found within a cell that is both eukaryotic and autotrophic

adell [148]

It is D. <span>chloroplast.</span>

6 0

3 years ago

Characterize questions that cannot be answered scientifically

Tju [1.3M]

Opinions. Like Red is Better Than Blue. Pancakes are better than waffles. ETC.

3 0

3 years ago

How has the sellement et humans in agricultural societies impacted the environment?

ValentinkaMS [17]

Answer:

They have increased the amount of certain organisms (a lot of crops and such) and made the soil healthier. Also, other organisms that may feed on this are having more food.

Explanation:

5 0

3 years ago