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PtichkaEL [24]
3 years ago
12

In a certain​ lottery, you must correctly select 44 numbers​ (in any​ order) out of 3939 to win. You purchase one lottery ticket

. What is the probability that you will​ win?
Mathematics
1 answer:
rusak2 [61]3 years ago
5 0

The probability of choosing one correct number is 44/3939.

The prob. of choosing 2 s 44/3939 * 43/3938.

And so on...

In product notation it looks like this:

\prod_{n=0}^{43} \frac{44-n}{3939-n} \approx 2.149332 \cdot10^{-104}.

If you're wondering why i'm subtracting it's because each time you choose a number the # of choices decreases.

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Item 17 The amount of chlorine in a swimming pool varies directly with the volume of water. The pool has 2.5 milligrams of chlor
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8000 gal *\frac{ 1 L}{0.264 gal}*\frac{2.5 mg}{1 L} = 75,757 mg

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7 0
3 years ago
Solve the system of equations using the substitution method. 2x+8y=4 x=−3y+5
goldenfox [79]
Since x=-3y+5, substitute x for -3y+5. 

2(-3y+5)+8y=4

Distribute. 

-6y+10+8y= 4

2y+10= 4

Subtract 10 on both sides. 

2y=-6

Divide by 2.

y=-3

Plug in y=-3. 

x=-3(-3)+5
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x=14

(14,-3)

We can check this. 

2(14)+8(-3)=4
28-24=4
4=4 <== this works

I hope this helps!
~kaikers
7 0
3 years ago
1, 3,4,5,11, answer is 65 _ + (_-_)^2 +_x_
Y_Kistochka [10]

Answer:

1 + (11-4)^2 +3x5

Step-by-step explanation:

1 + (11-4)^2 +3x5

1 + (7)^2 + 3 x 5

1 + 49 + 15

50 + 15 = 65

5 0
3 years ago
What is 100 ÷ 5 × 4 + 43 <br> A. 69<br> B. 144<br> C. 0.3<br> D. 1.2
inn [45]
123 - Use PEMDAS but since you have both division and multiplication you can just go from left to right
4 0
3 years ago
Read 2 more answers
Convert 19/20 to a percent.
liraira [26]
95% is the answer you're looking for
5 0
3 years ago
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