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3 years ago

Help me please you’ll get 35 points please !!!

Mathematics

1 answer:

lina2011 [118]3 years ago

6 0

Answer:

n-9 is the least value

q is the closest to zero

q-n is the greatest value

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Round 275,608 to the nearest thousand

Lilit [14]

The answer is 276,000.

Hope that helps :]

4 0

3 years ago

Read 2 more answers

1) y+3+ Z/4+z use y=-5, and z = 4

elena-14-01-66 [18.8K]

1) (-5) + 3+ 4/4+4

2) (-5) +3 +1+4

3) -2+1+4

4) -1+4

5) 3

correct answer: 3

3 0

4 years ago

If A is directly proportional to B and A = 1 13 when

Zielflug [23.3K]

Answer:

Step-by-step explanation:

5 0

3 years ago

Suppose that the amount of time T a customer spends in a bank is exponentially distributed with an average of 10 minutes. What i

Bad White [126]

Answer:

The probability that a customer will spend more than 15 minutes total in the bank, given that the customer has already waited over 10 minutes is 0.6065.

Step-by-step explanation:

The random variable T is defined as the amount of time a customer spends in a bank.

The random variable T is exponentially distributed.

The probability density function of a an exponential random variable is:

$f(x)=\lambda e^{-\lambda x};\ x>0$

The average time a customer spends in a bank is β = 10 minutes.

Then the parameter of the distribution is:

$\lambda=\frac{1}{\beta}=\frac{1}{10}=0.10$

An exponential distribution has a memory-less property, i.e the future probabilities are not affected by any past data.

That is, P (X > s + x | X > s) = P (X > x)

So the probability that a customer will spend more than 15 minutes total in the bank, given that the customer has already waited over 10 minutes is:

P (X > 15 | X > 10) = P (X > 5)

$\int\limits^{\infty}_{5} {f(x)} \, dx =\int\limits^{\infty}_{5} {\lambda e^{-\lambda x}} \, dx\\=\int\limits^{\infty}_{5} {0.10 e^{-0.10 x}} \, dx\\=0.10\int\limits^{\infty}_{5} {e^{-0.10 x}} \, dx\\=0.10|\frac{e^{-0.10 x}}{-0.10}|^{\infty}_{5}\\=[-e^{-0.10 \times \infty}+e^{-0.10 \times 5}]\\=0.6065$

Thus, the probability that a customer will spend more than 15 minutes total in the bank, given that the customer has already waited over 10 minutes is 0.6065.

8 0

3 years ago

Find the solution to x^2+2=27

rewona [7]

Answer:

x = 5

Step-by-step explanation:

x^2 +2 = 27

x^2 = 27 - 2

x^2 = 25

x = $\sqrt{25\\\\}$

x = 5

4 0

3 years ago

Read 2 more answers