Answer:
And replacing we got:
Step-by-step explanation:
Let X the random variable of interest "number of times that we select a blue ball", on this case we now that:
The probability is always the same since we replace the ball selected in each trial.
The probability mass function for the Binomial distribution is given as:
Where (nCx) means combinatory and it's given by this formula:
And we want to find this probability:
And replacing we got:
D because it can't be unique since many triangles can share these characteristics. It can't be more than one triangle and the triangle is possible.
<h3>☞<u> </u><u>Correct Question</u>: - </h3>
In how many years will rupees 2000 amount to rupees 2420 at 10% per annum compound interest.
<h3>➩ <u>Solution</u>: - </h3>
Given,
P= Rs 2000
A= Rs 2420
R= 10 %
A = P(1 + R/100)ⁿ
⇒2420 = 2000(1 + 10/100)ⁿ
⇒2420/2000 = (11/10)ⁿ
⇒121/100 = (11/10)ⁿ
⇒(11/10)² = (11/10)ⁿ
⇒n = 2
∴ In 2 years rupees 2000 will amount to rupees 2420 at 10% per annum compound interest.
__________________________
Hope It Helps You ✌️
Set them equal to each other and solve for x
x^2+1 = 5x
x^2-5x+1 = 0
using the quadratic formula from here yields
x = 4.791287848 or x = 0.208712152
which are approximate solutions
Using the density formula, it is found that the correct sentence is:
- Deirdre won a gold medal because the density of her medal is approximately 18.180 kg/m³.
<h3>What is the density formula?</h3>
- <em>Density </em>is <u>mass divided by volume</u>, that is:
For her medal:
- Her medal has a mass of 0.4 kg, hence
.
- It also has a volume of 0.000022 m³, hence
.
Hence, the <em>density </em>is:
It is <u>closest to the gold medal density</u>, hence, the sentence is:
- Deirdre won a gold medal because the density of her medal is approximately 18.180 kg/m³.
You can learn more about the density formula at brainly.com/question/11539943
