Answer:
The expression which gives the probability that she will select two red cubes = 5/12 * 4/11 ....
Step-by-step explanation:
According to the statement there are 4 red cubes and 7 white cubes.
The total number of cubes are = 7+5 = 12
If she picks up one red cube then the number of ways of picking up red cubes out of 12 is = 5/12
If she picks up 2nd red cube then the number of ways of picking up 2nd red cube = 4/11
Therefore the expression which gives the probability that she will select two red cubes = 5/12 * 4/11 ....
Answer:
3. 1/2 4. 13/20
Step-by-step explanation:
Those are the only one I know, sorry :/
A normally distributed data set has a mean of 0 and a standard deviation of 2. The closest to the percent of values between -4.0 and 2.0 would be 84%.
<h3>What is the empirical rule?</h3>
According to the empirical rule, also known as the 68-95-99.7 rule, the percentage of values that lie within an interval with 68%, 95%, and 99.7% of the values lies within one, two, or three standard deviations of the mean of the distribution.
A normally distributed data set has a mean of 0 and a standard deviation of 2.
……….(by symmetry)
=.49865+.3413
.83995…….(by (http://83995…….by) table value)
=.8400 × 100
=84%
Learn more about the empirical rule here:
brainly.com/question/13676793
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Hello there! How are you today?
First, let's take a look at our numbers.
45 / 100
Both of these numbers have a 0 and a 5, which means it is divisible by 5.
Let's divide both of them by 5.
45 / 5 = 9
100 / 5 = 20
We are now left with 9/20.
This is your simplified fraction since 9 and 20 do not have any common factors.
I hope this helps!
Your question is not clear, but it looks as though you want to know how Brie can make a similar sandbox with base = 8ft.
Answer:
For Brie to make a similar sandbox, he must use a base = 8ft, and height = (8/3)ft
Step-by-step explanation:
It is possible for Brie to make a similar triangular sandbox with base = 12ft and height = 4ft.
All he must ensure is that the ratio of base to height of the original sandbox is the same ratio of base to height of the one he is trying to make.
The original sandbox is 12:4
Because he wants to use a base = 8ft, the sandbox he is trying to make is 8:x
Where x is the height of the sandbox he is trying to make.
Then for these sandboxes to be similar, the ratio 12:4 = 8:x
=> 12/4 = 8/x
12x = 8 × 4
12x = 32
x = 8/3
The height must be (8/3)ft
