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3 years ago

Identify the domain of the exponential function shown in the following graph:

Mathematics

2 answers:

Svetradugi [14.3K]3 years ago

5 0

So, 30000 kept multiply up by the powers of the exponents

mash [69]3 years ago

3 0

I'm sure it is x ≥ 0.
Hope it helped..

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(3n³ - 5n + n²) - (-8n² + 3n³) please shawty please

satela [25.4K]

Answer:

Step-by-step explanation:

$3n^3-5n+n^2+8n^2-3n^3\\ \\ 9n^2-5n\\ \\ or\ n(9n-5)$

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3 years ago

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Area of square plot is = 2500m2, what will be the sides,

Alisiya [41]

Answer: 50m

Step-by-step explanation:

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3 years ago

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Allisa [31]

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3 years ago

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The taxi and takeoff time for commercial jets is a random variable x with a mean of 8.4 minutes and a standard deviation of 3.5

Lorico [155]

Answer:

0.6672 is the required probability.

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = 8.4 minutes

Standard Deviation, σ = 3.5 minutes

We are given that the distribution of distribution of taxi and takeoff times is a bell shaped distribution that is a normal distribution.

According to central limit theorem the sum measurement of n is normal with mean $\mu$ and standard deviation $\sigma\sqrt{n}$

Sample size, n = 37

Standard Deviation =

$=\sigma\times \sqrt{n} = 3.5\times \sqrt{37}=21.28$

P(taxi and takeoff time will be less than 320 minutes)

$P( \sum x < 320) = P( z < \displaystyle\frac{320 - 37(8.4)}{21.28}) = P(z < 0.4323)$

Calculation the value from standard normal z table, we have,

$P(\sum x < 320) =0.6672 = 66.72\%$

0.6672 is the probability that for 37 jets on a given runway, total taxi and takeoff time will be less than 320 minutes.

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3 years ago

How many diagonals can be drawn from each vertex of a 15-gon?

tangare [24]

Answer:

Correct option: third one -> 12

Step-by-step explanation:

In a polygon with 'n' vertex, we can trace diagonals from one vertex to all vertices, except to the vertex chosen and the two adjacent vertices (because we would have sides and not diagonals), so we would have 'n - 3' diagonals.

If we have a polygon with 15 vertex, the number of diagonals from one vertex is 15 - 3 = 12.

Correct option: third one

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3 years ago