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murzikaleks [220]
2 years ago
15

The track team gives awards for first, second, and third place runners. There are 10 students from school A and 12 students from

school B competing. Which expression represents the probability that all three awards will go to a student from school B? StartFraction 12 P 3 Over 22 P 3 EndFraction StartFraction 12 C 3 Over 22 C 3 EndFraction StartFraction 22 P 3 Over 22 P 12 EndFraction StartFraction 22 C 3 Over 22 C 12 EndFraction
Mathematics
2 answers:
Dima020 [189]2 years ago
5 0

Answer:

I just took the test and it's not B

Step-by-step explanation:

andreyandreev [35.5K]2 years ago
4 0

Answer:

A

Step-by-step explanation:

Just took test

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A plate moves south at a rate of 2 cm/year. How many meters south from its original location will the plate be in 4,000 years?
Neporo4naja [7]

Answer:

I hope I can help

welcome po

3 0
2 years ago
Read 2 more answers
Wade bicycles at a speed of 10 miles an hour and arrives at his office in only 15 minutes. What is the distance in miles to his
bulgar [2K]

Answer:

The distance to his office is 2.5 miles.

Step-by-step explanation:

Given : Wade bicycles at a speed of 10 miles an hour and arrives at his office in only 15 minutes.

To find : What is the distance in miles to his office?

Solution :

The relationship between distance, speed and time is

\text{Distnace}=\text{Speed}\times \text{Time}

The speed of bicycle is 10 miles per hour.

Time taken is 15 minutes.

Converting into hours,

1 hour = 60 minutes

1 minute = \frac{1}{60} hours

15 minute = \frac{15}{60} hours

15 minute = 0.25 hours

Substitute the value sin the formula,

\text{Distnace}=10\times0.25

\text{Distnace}=2.5

Therefore, The distance to his office is 2.5 miles.

4 0
2 years ago
What is the domain of the given function? {(3, –2), (6, 1), (–1, 4), (5, 9), (–4, 0)}
Veronika [31]
The domain is all the x values that makes the graph work so its -4,-1,3,5,6
3 0
2 years ago
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Suppose r(t)= cos(t)i+sin(t)j+(2t)k represents the position of a particle on a helix, where Z is the height of the particle abov
Gwar [14]

Answer:

The parametric equations for the tangent line are :

x = Cos(10) - t×Sin(10)

y = Sin(10) + t×Cos(10)

z = 20 + 2t

Step-by-step explanation:

When Z=20:

Z=2t=20 ⇒ t=10

The point of tangency is:

r(10)= Cos(10) i + Sin(10) j + 20 k

We have to find the derivative of r(t) to get the tangent line:

r'(t)= -Sin(t) i + Cos(t) j + 2 k

The direction vector at t=10 is:

r'(10)= -Sin(10) i + Cos(10) j + 2 k

So, the equation of the tangent line is given by:

x = cos 10 -t×Sin(10)

y = sin 10 + t×Cos(10)

z = 20 + 2t

4 0
2 years ago
at the end of the day vegetables at farm market sell for $2.00 a pound and a bakery costs $3.50. if Charlene wants to buy a bask
9966 [12]
10=2x+3,50 |-3,50
6,50=2x |:2
3,25=x

10=2x+7 |-7
3=2x |:2
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You didnt say how many bakery she wants to buy, so i did one inequality for 1 bakery anderen for the maximum of 2.
8 0
2 years ago
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