Mis primas son muy altas pero mis primos son _____ altos que ellas.
A. mayores
B. menores
C. mucho
D. más

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Asked 8/9/2012 5:19:48 AM

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Suppose you are playing a game with two number cubes. Let A represent rolling 2, 3, or 4, and B represent rolling 1, 5, or 6. The probability of A is 1/2 and the probability of B is 1/2 .
a. Simplify( 1/2 A + 1/2 B)^2
b. What is the probability that one number cube shows 2, 3, or 4, and the other shows 1, 5, or 6?

Weegy: I'm not sure what part (a) is about.
But if A represents P(event A) and similarly for B,
you have (1/2 * 1/2 + 1/2 * 1/2)^2 = (1/4 + 1/4)^2 = (1/2)^2 = 1/4
If that's not what A and B represent, you have, [ more generally,
(A/2 + B/2)^2 = A^2/4 + B^2/4 + 2 AB / 4 = A^2 / 4 + B^2 / 4 + AB / 2
For part (b):
Roll one of the cubes.
The top facing number will be
either from {1 5 6} or {2 3 4} - it doesn't matter which.
Then you want the ... (More)

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Asked 8/2/2012 3:48:05 PM

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Suppose you are playing a game with two number cubes. Let A represent rolling 2, 3, or 4, and B represent rolling 1, 5, or 6. The probability of A is 1/2 and the probability of B is 1/2 . a. Simplify( 1/2 A + 1/2 B)^2 b. What is the probability that one number cube shows 2, 3, or 4, and the other shows 1, 5, or 6?

Weegy: The probability that one number cube shows 2, 3, or 4 and the other shows 1, 5, or 6 is 1/4. (More)

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Asked 8/2/2012 3:52:50 PM

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Solve the system using elimination.
3x + 3y = –9
3x – 3y = 21
A. (3, –6)
B. (–5, 2)
C. (3, 3)
D. (2, –5)

Weegy: D. (2, –5). The solution for the system of equations 3x + 3y = –9, 3x – 3y = 21 is (2, -5). Source: (More)

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Asked 8/2/2012 4:00:06 PM

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Simplify the expression. Write the answer using scientific notation.
8(8.8 x 1012)
A. 70.4 x 1012
B. 70.4 x 1024
C. 70.4 x 1013
D. 1.68 x 1013

Weegy: A. 70.4 x 10^12 (More)

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Asked 8/2/2012 4:02:20 PM

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Simplify the expression. Write the answer using scientific notation.
8(8.8 x 1012)
A. 70.4 x 1012
B. 70.4 x 1024
C. 70.4 x 1013
D. 1.68 x 1013

Weegy: A. 70.4 x 10^12 is the answer.
(More)

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Asked 8/2/2012 4:09:08 PM

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