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Anton [14]
3 years ago
9

How many different 4-digit numbers can be formed using only digits 1, 2, 3, and 4, given that they contain each of these digits

as many times as you want?
Mathematics
1 answer:
UNO [17]3 years ago
4 0

Answer:

256

Step-by-step explanation:

Im not kidding here is your awser

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Arianna invest $8,093 in a new savings account which earns 4.9% annual interest, compounded monthly. What will be the value of h
butalik [34]

Answer:

11967.58

Step-by-step explanation:

The formula is

A=p(1+r/k)^(k×t)

A future value

P present value

R interest rate

K compounded monthly 12

T time

A=8,093×(1+(0.049÷12))^(12×8)=11967.58

6 0
3 years ago
The probability that Chloe acts hungry at 7pm given that she has already eaten dinner is 0.5. The probability that Chloe acts hu
kolezko [41]

Answer:

a) P(  Y^{C} | X ) = 0.180

b) P(Y | X^{C}  ) = 0.998

Step-by-step explanation:

Let

P(X) - Probability that he acts hungry

P(Y) - Probability that he had ate dinner,

Given,

P(X | Y) = 0.5

P(X | Y^{C}  ) = 0.99

P(Y) = 0.9

a.)

P(  Y^{C} | X ) =  \frac{P( X | Y^{C} ). P(Y^{C} )   }{P( X | Y^{C} ). P(Y^{C} ) + P( X | Y ) . P (Y) }

                  = \frac{(0.99)(0.1)}{(0.99)(0.1) + (0.5)(0.9)} = \frac{0.099}{0.549} = 0.180

⇒P(  Y^{C} | X ) = 0.180

b.)

P(Y | X^{C}  ) = \frac{(1 - P(X | Y ) ) . P(Y)}{P( X^{C} )  } =  \frac{(1 - P(X | Y ) ) . P(Y)}{ 1 - P( X )  }

                 = \frac{(1 - 0.5)(0.9)}{1 - [(0.99)(0.1) + (0.5)(0.9) ]} = \frac{(0.5)(0.9)}{1 - [(0.099) + (0.45) ]} = \frac{0.45}{1 - [0.540]} = \frac{0.45}{0.451} = 0.998

⇒P(Y | X^{C}  ) = 0.998

3 0
3 years ago
The second angle in a triangle is five times as large as the first. The third angle is two-thirds as large as the first. What ar
FromTheMoon [43]
The ratio being 1:5:3, you would have to just make those numbers still in that ratio, but they have to add up to 180 degrees.The angles would be 20 degrees, 100 degrees, and 60 degrees.  Hope that helped. :)

4 0
4 years ago
Plzzzz brainlest I swear
Leona [35]

Answer: 8

Step-by-step explanation: on the left chain, there are 5 4’s, so 4 times 5 is 20 Because you know that, subtract it from 60 to only have the W’s values. So 60-20 is 40 and because there is 5 w’s do 40/5 is 8. Therefore, the value of the w’s is 8 and the value of the 4’s is 20

8 0
3 years ago
Read 2 more answers
2. Lines BC and DE are both vertical. What is the length of AD?
MrMuchimi

Answer:

A)  4.5

Step-by-step explanation:

you can set up a ratio comparing AB/CB to (AB + BD)/5

3/2 = 3 + BD/5

cross-multiply to get 15 = 2(3 + BD)

15 = 6 + 2BD

9 = 2BD

9/2 = BD

5 0
3 years ago
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