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Komok [63]
3 years ago
7

A number cube numbered 1-6 is rolled once. What is the probability that the side facing up shows a 4?

Mathematics
1 answer:
katrin2010 [14]3 years ago
6 0

Answer:

1/6 is your answer :))

Step-by-step explanation:

There is 1 four out of 6 possible numbers = 1/6

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Find the mass. Volume=2.3cm cubed<br> Density=4.1g/cm cubed
Yakvenalex [24]
Density = mass / volume 
So if we know the density and volume, make an algebraic equation of this. 
4.1 = m ÷ 2.3 
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3 0
3 years ago
A random number is selected from the interval [6.35, 10]. Find the probability that the number is within a distance of 0.25 from
exis [7]

Let <em>X</em> be a random number selected from the interval. Then the probability density for the random variable <em>X</em> is

f_X(x)=\begin{cases}\dfrac1{10-6.35}=\dfrac1{3.65}\approx0.2740&\text{if }6.35\le x\le 10\\0&\text{otherwise}\end{cases}

8 and 10 are the only even integers that fit the given criterion (6 is more than 0.25 away from 6.35), so that we're looking to compute

P(|<em>X</em> - 8| < 0.25) + P(|<em>X</em> - 10| < 0.25)

… = P(7.75 < <em>X</em> < 8.25) + P(9.75 < <em>X</em> < 10.25)

… = P(7.75 < <em>X</em> < 8.25) + P(9.75 < <em>X</em> < 10)

(since P(<em>X</em> > 10) = 0)

… = 0.2740 (8.25 - 7.75) + 0.2740 (10 - 9.75)

… = 0.2055

6 0
3 years ago
Six times a number is decreased by 5, the result is 19.what is the number?
marishachu [46]
Simple...

6x-5=19

x= 19+5
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x= 24/6
  = 4

Thus, your answer is 4.

Hope This Helps!
6 0
4 years ago
Magnani flips three coins what is the probability that the first second and third coin will all land the same way either our hea
Pavlova-9 [17]
Hhh
hht
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it will be 2/8
5 0
4 years ago
Which expression is equivalent to ?
maksim [4K]

Answer:

16x - 2 + y

Step-by-step explanation:

(48x - 6 + 3y)/3 = 48x/3 - 6/3 + 3y/3 = 16x - 2 + y

4 0
3 years ago
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