Answer:
=x+2
Step-by-step explanation:
2(x+2)−(x+2)
Distribute the Negative Sign:
=2(x+2)+−1(x+2)
=2(x+2)+−1x+(−1)(2)
=2(x+2)+−x+−2
Distribute:
=(2)(x)+(2)(2)+−x+−2
=2x+4+−x+−2
Combine Like Terms:
=2x+4+−x+−2
=(2x+−x)+(4+−2)
=x+2
Answer:
=x+2
87.5% of 64 is 0.875 • 64 = 56
Hope this helps.
<h3>Answer:</h3>
A
Step-by-step explanation:
{-32, 9, 11, 12}
first, find the mean (Find the sum of the data values, and divide the sum by the number of data values )
(-32) + 9 + 11 + 12 = 0
0/0 = 0
then, find the absolute value of the difference between each data value and the mean: |data value – mean|.
-32 - 0= -32
9 -0 = 9
11 -0 = 11
12 -0 = 0
finally, find the sum of the absolute values of the differences. Divide the sum of the absolute values of the differences by the number of data values.
0 - 0 / 4 = 0
answer is 0 (A)
Answer:
Yes
Step-by-step explanation:
A proportion is an equation with a ratio on each side. And when you reduce 6/8 to the lowest form, it is 3/4
Answer:
The variable x will follow a geometric distribution, with mean = 3 and standard deviation = 3.46.
The values for P(x) are:
Step-by-step explanation:
This kind of random variables can be descripted by the geometrical distribution.
This distribution shows the probability of having an amount of "failures" before the first "success" (or the other way).
Let x be the number of trustworthy FBI agents tested until someone fails the test. The probability of failing a test is p=0.25
Then, the probability of x is:
The values for the first x are:
This probability will be descending as the the variable x increases.
The mean is:
The standard deviation is:
