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igomit [66]
3 years ago
5

HELPNEEDED.Two boys and three girls are auditioning to play the piano for a school production. Two students will be chosen, one

as the pianist, the other as the alternate.
What is the probability that the pianist will be a boy and the alternate will be a girl?


30%

40%

50%

60%
Mathematics
1 answer:
Vsevolod [243]3 years ago
8 0
I’m pretty sure it’s 30%
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Josh​ simplified 4x - 8x ÷ 2 and said the answer was -2x. What was josh's error? What should his answer have been?
Svetradugi [14.3K]

Answer:

see explanation

Step-by-step explanation:

Given

4x - 8x ÷ 2

Under the rules of PEMDAS , division must be performed before subtraction.

Hence

4x - 8x ÷ 2 = 4x - 4x ← dividing - 8x by 2, then

4x - 4x = 0 ← correct answer

6 0
3 years ago
tony scored 22 and 25 points in the first two games of a basketball tournament. Tony's goal is to make the all-tournament team.
ad-work [718]
Tony's current scores are 22  and 25.
Let x = Tony's next score.

To make the lower required score of 27,
(x + 22 + 25)/3 = 27
x  = 81 - 47 = 34

To make the upper required score of 32,
(x + 22 + 25)/3 = 32
x = 96 - 47 = 49

Answer:
Tony should score between 34 and 49
8 0
3 years ago
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What are the values for matrix A?: 1 2 3 4 1 3 4 5 6 7 8 Noo 4 1 0 0 9 6 7 8 10 12 14 15 16 13 14 14 15 16​
Gala2k [10]
Since the values are the same on both sides the matrix value is a=1
7 0
3 years ago
Divide using synthetic division. ( x^4-12x^2-9)/(x+3)
Firdavs [7]

Answer:

x^3 - 3x^2 - 3x + 9 + (-36/(x+3))

OR

x^3 - 3x^2 - 3x + 9 - (36/(x+3))

Step-by-step explanation:

First set the divisor equal to 0:

x + 3 = 0

Subtract 3 from both sides

x = -3

This is what you'll divide the dividend by in synthetic division.

Take the coefficents of each term in the dividend. Do not forget the 0 placeholders:

x^4 + 0x^3 - 12x^2 + 0x -9

Coefficents: 1. 0.  -12. 0 -9.

Please see the image for the next steps.

The remainder is -36. Put the remainder over the divisor and add it to the polynomial (shown in image)

-36/(x+3)

6 0
2 years ago
Simplify 18/27??? Plz help
Rus_ich [418]
2/3 is the simplified form of 18/27
6 0
3 years ago
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