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3 years ago

11

A band leader randomly selects 2 students out of 75 band members. If you and your brother are both band members, what is the pro

bability that you are both selected?

2 answers:

Gnoma [55]3 years ago

6 0

The probability for this question is 2.(666 repeating)<span />

charle [14.2K]3 years ago

4 0

The probability is 2.666 (repeating) %

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Solve the system by elimination. <br> -2x+2y+3z=0<br> -2x-y+z=-3<br> 2x+3y+3z=5

KengaRu [80]

-2x + 2y + 3z = 0 → 2x - 2y - 3z = 0 → 2x - 2y - 3z = 0
-2x - 1y + 1z = -3 → 2x + 1y - 1z = 3 → 2x + 1y - 1z = 3
2x + 3y + 3z = 5 → 2x + 3y + 3z = 5 -3y - 2z = -3

-2x + 2y + 3z = 0 → 2x - 2y - 3z = 0
-2x - 1y + 1z = -3 → 2x + 1y - 1z = 3 → 2x + 1y - 1z = 3
2x + 3y + 3z = 5 → 2x + 3y + 3z = 5 → 2x + 3y + 3z = 5
-2y - 4z = -2

-3y - 2z = -3 → -6y - 4z = -6
-2y - 4z = -2 → -2y - 4z = -2
-4y = -4
-4 -4
y = 1

-3y - 2z = -3
-3(1) - 2z = -3
-3 - 2z = -3
+ 3 + 3
-2z = 0
-2 -2
z = 0

-2x + 2y + 3z = 0
-2x + 2(1) + 3(0) = 0
-2x + 2 + 0 = 0
-2x + 2 = 0
- 2 - 2
-2x = -2
-2 -2
x = 1
(x, y, z) = (1, 1, 0)

8 0

3 years ago

342,98,317 from least to greatest

Lady_Fox [76]

Answer:

bruh are u like 2

Step-by-step explanation:

8 0

3 years ago

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A parking garage has 6 levels . Each level has 15 rows. Each row has the same number of parking spaces . There are 2,250 parking

Vika [28.1K]

6*15=90 rows in total.
2250/90=25 spaces in a row

6 0

3 years ago

Help I need to find x

algol [13]

Answer:

x = 75 degrees

Step-by-step explanation:

180 - 125 = 55

50 + 55 = 105

180 - 105 = 75

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2 years ago

X x X x X x Y x Y x Y find will power

Vladimir79 [104]

Answer:

$x^3y^3$

Step-by-step explanation:

$x^3(y^3)\\x^3y^3$

3 0

2 years ago