All categories

3 years ago

PLEASE I NEED HELP ASAP

Mathematics

1 answer:

Annette [7]3 years ago

6 0

1. 15x
2. 21
3. 4
You’re welcome

You might be interested in

Miguel wants to bike a total of 100 miles over the course of one week in the summer. He logs how much he bikes each day in the t

bagirrra123 [75]

Answer:

Change all of the number into the same form for ease of adding.

16.3 + 14.5 + 18.75 + 12.25 + 22.6 = 84.4

100 - 84.4 = 15.6

Miguel has to ride a total of 15.6 miles on Saturday and Sunday

4 0

4 years ago

I need help with this question asap

hoa [83]

I think it is the third choice

8 0

3 years ago

The time between telephone calls to a cable television service call center follows an exponential distribution with a mean of 1.

Ulleksa [173]

Answer:

0.52763 is the probability that the time between the next two calls will be 54 seconds or less.

0.19285 is the probability that the time between the next two calls will be greater than 118.5 seconds.

Step-by-step explanation:

We are given the following information in the question:

The time between telephone calls to a cable television service call center follows an exponential distribution with a mean of 1.2 minutes.

The distribution function can be written as:

$f(x) = \lambda e^{-\lambda x}\\\text{where lambda is the parameter}\\\\\text{Mean} = \mu = \displaystyle\frac{1}{\lambda}\\\\\Rightarrow 1.2 = \frac{1}{\lambda}\\\\\lambda = 0.84 \\f(x) = 0.84 e^{0.84 x}$

The probability for exponential distribution is given as:

$P( x \leq a) = 1 - e^{\frac{-a}{\mu}}\\\\P(a \leq x \leq b) = e^{\frac{-a}{\mu} -\frac{-b}{\mu}}$

a) P( time between the next two calls will be 54 seconds or less)

$P( x \leq 0.9)\\= 1 - e^{\frac{\frac{-54}{60}}{1.2}} = 0.52763$

0.52763 is the probability that the time between the next two calls will be 54 seconds or less.

b) P(time between the next two calls will be greater than 118.5 seconds)

$p( x > \frac{118.5}{60}) = P(x > 1.975)\\\\ = 1 - P(x \leq 1.975) \\\\= 1 -1+ e^{\frac{-1.975}{1.2}}\\\\= 0.19285$

0.19285 is the probability that the time between the next two calls will be greater than 118.5 seconds.

6 0

3 years ago

A rectangular swimming pool is 5.4m long and 3.5m side. IT has a path 0.5m wide around IT. What is the area of the path?

Oksanka [162]

Step-by-step explanation:

<h3>I will be there at the same time I don't have a car so I can get my hands on your hips and I hope you have a great day and I will be there at the same time I don't have a</h3>

8 0

2 years ago

Please help me out please 10 point

Pavel [41]

Answer:

Its A.

Step-by-step explanation:

5 0

3 years ago

Read 2 more answers