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11Alexandr11 [23.1K]
3 years ago
13

Please help n show work

Mathematics
1 answer:
MakcuM [25]3 years ago
5 0

Answer : 2 because it’ll be 4.2 inches tall when it’s been lit for over 2hrs

Step-by-step explanation:

8% of 5 = 0.4

5-0.4-0.4-0.2= 4

The candle been lit for 2.5 hours

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Adult tickets to the fall play cost $6 and student tickets cost $3. The drama class sold 25 more student tickets than adult tick
Gelneren [198K]
Let the number of adult tickets sold equal a.
Let the number of student tickets sold equal s.

The cost of the adult tickets sold is 6a.
The cost of the student tickets sold is 3s.
The total sales was $660, so we have our first equation:
6a + 3s = 660

25 more student tickets than adult tickets were sold.
That gives us our second equation
s = a + 25

We have a system of equations.

6a + 3s = 660
s = a + 25

Since the second equation is already solved for s, we can use the substitution method. Replace s of the first equation with a + 25 and solve for a.

6a + 3(a + 25) = 660

6a + 3a + 75 = 660

9a = 585

a = 65

65 adult tickets were sold.
Now we find the number of student tickets sold.

s = a + 25 = 65 + 25 = 90

Answer: The number of student tickets sold was 90.
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3 years ago
Let x have a poisson distribution with a variance of 3. find p(x = 2).
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Since the variance of a Poisson distribution with rate parameter \lambda is \lambda^2, we know that \lambda=\sqrt3. So,

\mathbb P(X=2)=\dfrac{e^{-\sqrt3}(\sqrt3)^2}{2!}=\dfrac3{2e^{\sqrt3}}\approx0.2654
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Answer:

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Step-by-step explanation:

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