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3 years ago

6

Markiya deposited $500 in a savings account. The annual interest rate is 2%, and the interest is compounded monthly. Write a com

pound interest function to model this situation. Then find the balance in Markiya’s account after 4 years.

2 answers:

Alexxandr [17]3 years ago

8 0

I agree the answer is 40 dollars.

motikmotik3 years ago

7 0

I=Prt
I=500*0.02*4
I=$40

So, basically the answer is $40.

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The youngest brother is 15 years old

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3 years ago

Blood type AB is the rarest blood type, occurring in only 4% of the population in the United States. In Australia, only 1.5% of

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Answer:

There is a 27.62% probability that exactly 2 of the U.S. residents have blood type AB.

Step-by-step explanation:

For each U.S. resident, there are only two outcomes possible. Either they have blood type AB, or they do not. This means that we can solve this problem using binomial probability distribution concepts.

Binomial probability distribution

The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.

$P(X = x) = C_{n,x}.\pi^{x}.(1-\pi)^{n-x}$

In which $C_{n,x}$ is the number of different combinatios of x objects from a set of n elements, given by the following formula.

$C_{n,x} = \frac{n!}{x!(n-x)!}$

And $\pi$ is the probability of X happening.

In this problem, we have that:

50 U.S residents are sampled, so $n = 50$

4% of the U.S population has blood type AB, so $p = 0.04$ .

What is the probability that exactly 2 of the U.S. residents have blood type AB?

This is P(X = 2). So:

$P(X = x) = C_{n,x}.\pi^{x}.(1-\pi)^{n-x}$

$P(X = 2) = C_{50,2}.(0.04)^{2}.(0.96)^{48} = 0.2762$

There is a 27.62% probability that exactly 2 of the U.S. residents have blood type AB.

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3 years ago

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2 years ago

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Answer:

The correct option is;

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3 years ago

Choose the constant term that completes the perfect square trinomial.<br><br> y2 + y

Oduvanchick [21]

Hello!

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3 years ago