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3 years ago

What's the sum of 2⁄5 and 2⁄4?

Mathematics

2 answers:

Kruka [31]3 years ago

7 0

We need them to have the same denominator so let's change it to 20.

8/20+10/20=18/20=9/10

PSYCHO15rus [73]3 years ago

6 0

2/5 + 2/4

8/20 = 10/20

8/20 + 10/20 = 18/20

18/20 = 9/10

9/10 = 0.9

Your answer is 9/10 or 0.9

Hope I helped!

Let me know if you need anything else

~ Zoe

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If f(x) = x − 4, what does f(3) represent

adell [148]

f(x)=x-4f(3)=3-4so f(3)= -1

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3 years ago

If you need carpet that is 6 1/2 long and 5 3/4 wide how many square feet do you need for the carpet??

Orlov [11]

Find the area

A= l*w

A = (6 1/2) * (5 3/4)

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A = 13/2 * 23/4

299/8

37 3/8

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3 years ago

The random variable x is the number of occurrences of an event over an interval of ten minutes. It can be assumed that the proba

zlopas [31]

Answer:

The probability that there are 8 occurrences in ten minutes is

option B. 0 .0771

Step-by-step explanation:

Given:

Random Variable = x

Mean number of occurrences in ten minutes is 5.3.

The probability of an occurrence is the same in any two time periods of an equal length

To Find:

The probability that there are 8 occurrences in ten minutes = ?

Solution:

Let X be the number of occurrences of the event X

$X \sim {Pois} (\lambda)$

$\lambda = E(X) = 5.3$

Possion of distribution is given by ,

$P(X=x) = \frac{e^{- \lambda} \lambda^{x}}{x!}$

Substituting the values,

$P(X=8) = \frac{e^{- 5.3} 5.3^{8}}{8!}$

$P(X=8) = \frac{(0.004994) ( 622596.904)}{40320}$

$P(X=8) = \frac{(3109.24894)}{40320}$

P(X=8) = 0.0771

3 0

3 years ago

What is the square root of 30 in simplified form

rewona [7]

The square root of 30 in its simplest form is 5.5 ( I think)

6 0

3 years ago

Read 2 more answers

Pls help it's an algebra question

JulijaS [17]

Answer:

6 sided polygon or you cans say its called a hexagon

Step-by-step explanation:

Just divide, its not really an algebra answer, 34.08/5.68

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3 years ago