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Nitella [24]
3 years ago
15

The vertex of the parabola would be located at which coordinates -6,3 6,3 3,-6 3,6

Mathematics
1 answer:
Artemon [7]3 years ago
7 0
<h3><u>Explanation</u></h3>
  • Given Equation

y = 4 {(x - 6)}^{2}  + 3

  • Vertex Form

y = a {(x - h)}^{2}  + k

where a-term determines how wide/narrow/upward or downward of the graph.

h-term determines the changes of graph for x-axis

k-term determines the changes of graph for y-axis.

The vertex of parabola is at (h,k).

y = 4 {(x - ( + 6)})^{2}  + ( + 3)

Therefore, h = 6 and k = 3.

<h3><u>Answer</u></h3>

<u>\large \boxed{(6,3)}</u>

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Answer:

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Step-by-step explanation:

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Answer:

(a) The number of different lock combinations is 216,000.

(b) The probability of getting the correct combination in the first try is \frac{1}{216000}.

Step-by-step explanation:

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(a)

There are three cylinder combinations on the lock, each with 60 numbers.

It is provided that repetitions are allowed.

Then each cylinder can take any of the 60 numbers.

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And there are 60 options for the third cylinder.

So the total number of possible combinations is:

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(b)

The events of getting a correct combinations of the three​-cylinder combination lock implies that all the three cylinder are set at the correct numbers.

Each cylinder has 60 numbers.

This implies that there are 60 possible ways to get a correct number for the first cylinder.

The probability of getting the correct number for the first cylinder is:

P (Number on 1st cylinder is correct) = \frac{1}{60}.

Similarly for the second cylinder the probability of getting the correct number is:

P (Number on 2nd cylinder is correct) = \frac{1}{60}.

And similarly for the third cylinder the probability of getting the correct number is:

P (Number on 3rd cylinder is correct) = \frac{1}{60}.

So the probability of getting the correct combination in the first try is:

P (Correct combination in the 1st try) = \frac{1}{60}\times \frac{1}{60}\times \frac{1}{60}=\frac{1}{216000}.

Thus, the probability of getting the correct combination in the first try is \frac{1}{216000}.

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