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3 years ago

Plz help!!!!!!!!!!!!!!!!!

Mathematics

1 answer:

Andrews [41]3 years ago

8 0

Perpendiculars are any lines that intersect to make or forms a right angle.

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1.6 hours to 0.95 hour =???

kykrilka [37]

The answer is 1.52. all you have to do is multiply

3 0

3 years ago

The manager of a fast-food restaurant determines that the average time that her customers wait for service is 3.5 minutes.The ma

Lana71 [14]

Answer:

The advertisement should use 16 minutes.

Step-by-step explanation:

Exponential distribution:

The exponential probability distribution, with mean m, is described by the following equation:

$f(x) = \mu e^{-\mu x}$

In which $\mu = \frac{1}{m}$ is the decay parameter.

The probability that x is lower or equal to a is given by:

$P(X \leq x) = \int\limits^a_0 {f(x)} \, dx$

Which has the following solution:

$P(X \leq x) = 1 - e^{-\mu x}$

The probability of finding a value higher than x is:

$P(X > x) = 1 - P(X \leq x) = 1 - (1 - e^{-\mu x}) = e^{-\mu x}$

The manager of a fast-food restaurant determines that the average time that her customers wait for service is 3.5 minutes.

This means that $m = 3.5, \mu = \frac{1}{3.5} = 0.2857$

What number of minutes should the advertisement use?

The values of x for which:

$P(X > x) = 0.01$

$e^{-\mu x} = 0.01$

$e^{-0.2857x} = 0.01$

$\ln{e^{-0.2857x}} = \ln{0.01}$

$-0.2857x = \ln{0.01}$

$x = -\frac{\ln{0.01}}{0.2857}$

$x = 16.12$

Rounding to the nearest number, the advertisement should use 16 minutes.

5 0

3 years ago

4 + 2 × 7 is equivalent to. 13 42 18 6 X 7 1 answer :p

Aleksandr [31]

Answer:

6 x 7 and 42

Step-by-step explanation:

4 + 2 x 7

6 x 7

Brainliest pls

5 0

3 years ago

Read 2 more answers

What is the value of 6n - 2 when n = 3?

Yuliya22 [10]

Answer:

Step-by-step explanation:

Substitute 3 for n,

6(3) - 2

then multiply

18 - 2

then subtract

8 0

3 years ago

Suppose you send about 12 text messages a day, and your older sister sends more text messages than you do. Together, you send a

frozen [14]

Answer: so your sister sends 14 messages a day

Step-by-step explanation: you send about twelve texts a day and as a total you both send 26 so lets let your sister be x and you are 12

26- 12=x

26-12= 14

I hope this was helpful!

3 0

2 years ago