What is the greatest common factor of 10, 30 and 45

How can I start this one I'm lost again help

Vesna [10]

Idk but the web always helps me so you can ask that question online

7 0

3 years ago

The advertised duration of the trip is 2 hours and 15 minutes. The company operating the ferry would like to increase its operat

vesna_86 [32]

The 2.88 minutes have to reduce the standard deviation to increase the efficiency.

According to the statement

we have given that the duration of the trip is 2 hours and 15 minutes. And we have to how much standard deviation be reduced to increase the operational efficiency.

So, For this purpose, we know that the

Let X be the time taken to reach the resort. Then it is given that the

N (μ , σ).

Here μ is 2 hours then

μ = 2*60 = 120 minutes.

And

Let σ be the reduced standard deviation such that new distributions becomes N (μ , σ)

Then P ( x <135)

here 135 is the minute format of 2 hours and 15 min.

So,

P ( x <135) = 0.95

And

P [ (x -120 / σ) < (135 -120 / σ)] = 0.95

P [ Z < ( 15 / σ)] = 0.95

And after solving it the

σ = 9.22 min.

i.e. 12 - 9.22 = 2.88 min.

So, The 2.88 minutes have to reduce the standard deviation to increase the efficiency.

Learn more about Standard deviation here

brainly.com/question/475676

Disclaimer: This question was incomplete. Please find the full content below.

Question:

The time it takes for a ferry to reach a summer resort from the mainland is Normally distributed with mean 2 hours and standard deviation 12 minutes. The advertised duration of the trip is 2 hours and 15 minutes. The company operating the ferry would like to increase its operational efficiency by reducing the standard deviation so that they are on time 95% of the time. How much do they have to reduce the standard deviation

#SPJ4

5 0

1 year ago

15+0= 15

Ksju [112]

First of all, let's take a look on the question.

$\large{15 + 0 = 15}$

Here, 0 is added to 15 and the resultant is 15 only. So, we can say that 0 when added with any number gives the same number as the resultant.

So, the property is known as Identity property because 0 is added to get the identity of the same number.

The Correct Option:

$\large{ \boxed{ \red{ \bf{Option \: C}}}}$

So, let's know more...

Commutative property ➝ a + b = b + a
Associative property ➝ a + (b + c) = (a + b) + c
Distributive property ➝ a(b + c) = ab + ac

So this is the general form of these properties which is general observed in the rational numbers.

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5 0

2 years ago

Find the missing value. Show your work. Round to the nearest hundredth. SOMEONE PLEASE HELP ME W THIS ! ILL VOTE BRAINIEST ANSWE

Olenka [21]

Since the side which measures 10 is a vertical projection of the hipotenuse x on a 20 degree angle:

10 = x*sin(20°)

x = 29.238044

Since we have to round to the nearest hundreth:

x = 29.24 m

8 0

3 years ago

Read 2 more answers

180 POINTS PLEASE HELP

Ostrovityanka [42]

Answer:

E) 300

F) 510

Step-by-step explanation:

E) 6*50=300

F) 35*6+300=510

7 0

3 years ago