1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Irina18 [472]
3 years ago
12

Mary invests 12000 in a saving account.

Mathematics
1 answer:
RSB [31]3 years ago
6 0

Answer:

In 2 years, you will have $12,362.70

Step-by-step explanation:

Use the formula A=P(1+r/n)^nt.

A     =  final amount

P =  initial principal balance

r =  interest rate

n =  number of times interest applied per time period

t =  number of time periods elapsed

You might be interested in
g Suppose I will flip a fair coin until it lands Heads for the first time, and you will receive $2 if the game lasts for 1 round
Anuta_ua [19.1K]

Answer:

Step-by-step explanation:

The main idea is that I would like to pay less than what I'm expecting to win, so in that way, I get a profit out of playing this game. Let X be the number of tosses until I get a Heads. By definition, this is a geometric random variable with parameter p = 1/2.

Let Y the amount I received for playing. So, we want to calculate the expected value of Y.

We can calculate it as follows

E[Y] = 2 P(X=1)+ 4 P(X=2)+ 8 P(X =3)  + \dots  = \sum_{n=1}^infty 2^n P(X=n)

Since X is a geometric random variable, we have that P(X=n) = (\frac{1}{2})^{n-1}\frac{1}{2}

Then,

E[Y] = \sum_{n=1}^\infty 2^{n} (\frac{1}{2})^{n-1} \frac{1}{2} = \sum_{n=1}^\infty 2^{n-1} \cdot \frac{1}{2^{n-1}} = \sum_{n=1}^\infty 1 = \infty

So, we expect to have an infinite amount. Given this, we can pay as much as we want to play the game.

5 0
3 years ago
If a person were to walk around the base of a
alexira [117]

Answer:

They walked about 125.6 meters

Step-by-step explanation:

40 is the diameter and just multiply it by 3.14

8 0
3 years ago
john was estimating and solving multiplication problems. While solving 5 x 3/4 John estimates that the product would be greater
n200080 [17]

Answer:

His assumption is wrong : multiplication does not always result in a product that is greater than one of the factors.

Step-by-step explanation:

4 0
3 years ago
Nick payed $2.94 in sales tax on an item that casts $42.00 before tax. At that rate, how much would he pay in sales tax for an i
Umnica [9.8K]
She would pay $4.06 in taxes the total would be $62.06
3 0
3 years ago
Solve this equation 5+3=2+21
ss7ja [257]

Answer:

8 ≠ 23

Step-by-step explanation:

. . . . .

5 0
3 years ago
Other questions:
  • A person wishing to itemize non-reimbursed work expenses on his or her federal tax return should ya which tax form? A 1040EZ, B
    11·2 answers
  • Which one is the answer?
    5·1 answer
  • Michael sold 23 of his CDs and purchased 16 more. If Michael has 25 CDs now, how many CDs did he have to begin with?
    11·1 answer
  • Can someone please help me. ​
    15·1 answer
  • Choose the correct description of the graph of the compound inequality x − 3 < −9 or x + 5 greater than or equal to 10.
    7·1 answer
  • How do you do scientific notation with the number 0.2058
    9·2 answers
  • Multiply. Simplify by combining like terms. (m+11N)^2
    15·1 answer
  • Help please :/
    6·1 answer
  • What is the overlap of data set 1 and data set 2 <br> A. High <br> B.moderate <br> C.low<br> D.none
    11·1 answer
  • Joel is designing a ramp for a bike trick. He draws this diagram. What is the value of x?
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!