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IrinaVladis [17]
3 years ago
10

9) The blue triangle has rotated from Quadrant I to Quadrant III about the origin. Describe the effects of the rotation on the c

oordinates of the blue triangle. A) The coordinates switch positions. B) The signs of the coordinates change. C) The sign of the x-coordinate changes. D) The coordinates switch positions and the signs change.
Mathematics
2 answers:
Svet_ta [14]3 years ago
6 0

B) The signs of the coordinates change.

jekas [21]3 years ago
4 0

Answer:

k

Step-by-step explanation:

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Jack has 12 pencils and 7 pens. How many more pencils than pens does he have?
Olegator [25]
12-7=5
all you have to do it subtract the number of pens from the number of pencils
8 0
3 years ago
15x²Y - 10xy^3<br> plz help
nikklg [1K]

Answer:

5 x (3 x Y - 2y^3)

x(15 x Y - 10 y^3)

5 (y^3 - 3x Y )^    -    5y^6

-----------------------------------

3Y                                3Y

X=  0       Y=  0

HOPE THIS HELPSS

3 0
3 years ago
What is the value of x?
Sati [7]

Answer:

B. 28

Step-by-step explanation:

35^2-21^2=784

Square root of 784= 28 : )

5 0
3 years ago
. Imagine a game of 3 players where exactly one player wins in the end and all players have equal chances of being the winner. T
lbvjy [14]

Answer:

5/9

Step-by-step explanation:

Number of players = 3

number of times game is repeated = 4

P( any person wins a game ) = 1/3

P ( any person does not win a game ) = 1 - 1/3 = 2/3

P ( any person wins no game in 4 attempts ) = ( 2/3 )^4 = 16/81

<em>Note : each player has equal chance of winning </em>

<u>Find the probability that there is at least one person who wins no games </u>

lets represent the probability of each player not wining a game with alphabet A

A1 = player 1 wins no game

A2 = player 2 wins no game

A3 = players 3 wins no game

Applying the inclusion-exclusion formula

<em>P( A1 ∪ A2 U A3 )</em><em> = P(A1 ) + P(A2) + P(A3) - P( A1 ∩ A2 ) - P( A2 ∩ A3 ) - P( A1            ∩ A3 )  + P( A1 ∩ A2 ∩ A3 ) </em>

where

P( A1 ∩ A2 ) = P( A1 wins all games )

P ( A1 wins all games in 4 attempts ) = ( 1/3 )^4 = 1/81

P( A1 ∩ A2 ∩ A3 ) = P ( no players wins any game in 4 attempts ) = 0

Hence

P( A1 ∪ A2 U A3 ) = 16/81 + 16/81 + 16/81 - 1/81 - 1/81 - 1/81 - 0 = 5/9

6 0
2 years ago
In the right triangle, a = 20, b = 21. Find c<br><br> A) 841<br> B) 22<br> C) 29
Mariulka [41]

Answer:

C

Step-by-step explanation:

3 0
3 years ago
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