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3 years ago

50 POINTS!!!

Mathematics

2 answers:

Usimov [2.4K]3 years ago

5 0

Answer:

it's b

Step-by-step explanation:

just because it's long it is very right

Step2247 [10]3 years ago

3 0

Answer:

well by looking at it , it would be for a.

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You are at a campus party where there are a total number of n people. The host asked everyone to put their phones in a bowl whil

kirill [66]

Answer:

1, $\frac{m}{n}$ , $\frac{1-m}{n}$ .

Step-by-step explanation:

probability = $\frac{Number of Possible Outcomes}{Total Outcomes}$

Total number of persons in the party = n

a) Pr ( every person gets their phone back) = Pr (each person picks his phone ) multiplied by number of person

= $\frac{1}{n}$ × n = 1.

No of first m persons to pick = m

No of last m persons to pick = 1 - m

b) Pr (first m persons to pick each gets their phones back) = $\frac{m}{n}$

c) Pr( first m persons get a phone belonging to last m persons) = $\frac{1-m}{n}$

3 0

3 years ago

Is this the correct answer i need help please

xz_007 [3.2K]

I do believe you are right

6 0

2 years ago

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Please help! This is due in 20 minutes.

Arturiano [62]

Answer: the answer is C 190

Step-by-step explanation:

i promise this is the answer

3 0

3 years ago

Solve the equation.<br> -9x + 1 = -x + 17

ddd [48]

Answer:

The value of $x$ :

$x = -2$

Step-by-step explanation:

Find the value of $x$ :

$-9x + 1 = -x + 17$

-Add both sides by $x$ :

$-9x + 1 + x = -x + x + 17$

$-8x + 1 = 17$

-Subtract both sides by $1$ :

$-8x + 1 - 1 = 17 - 1$

$-8x = 16$

Divide both sides by $-8$ :

$\frac{-8x}{-8} = \frac{16}{-8}$

$x = -2$

So, the final answer would be $x = -2$ .

4 0

3 years ago

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Find the coordinates if the midpoint of a line segment with endpoints (-3,4) and (7,9).

svetoff [14.1K]

Using the midpoint formula
$\frac{ x_{1}+ x_{2} }{2}, 
 \frac{ y_{1}+ y_{2} }{2}$
$\frac{-3+7}{2},
 \frac{4+9}{2}$
$\frac{4}{2},
 \frac{13}{2}$
$(2,6.5)$
So, your answer would be (2,6.5).

5 0

3 years ago

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