Answer:
8
Step-by-step explanation:
ab = 2 * 4 = 8
(x + 7)/2 - (x + 4)/2 = (x + 7 - (x + 4)/2 = (x + 7 - x - 4)/2 = 3/2
Answer:
-36
Step-by-step explanation:
-(36/-6) to the power of 2 is -36.
The z-score of the person who scored 178 on the exam is fund as 2.8.
<h3>What is defined as the normally distribution?</h3>
- The proper term for just a probability bell curve is the normal distribution.
- The mean of a normal distribution is zero, as well as the standard deviation is one. It has a skew of 0 and a kurtosis of 3.
- However all symmetrical distributions are normal, not all normal distributions are symmetrical.
- Many naturally occurring phenomena resemble the normal distribution.
- However, most pricing distributions in finance are not perfectly normal.
For the given question,
Mean μ = 150
Standard deviation σ = 10
Observed value x = 178.
The z-score is calculated as;
z = (x - μ)/σ
z = (178 - 150)/10
z = 28/10
z = 2.8
Thus, the z-score of the person who scored 178 on the exam is fund as 2.8.
To know more about the normally distribution, here
brainly.com/question/23418254
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Answer:
dilation, enlarge, reduce
Step-by-step explanation:
We only see one question in the picture you uploaded... the one from slide 1, with the fill-in the blanks question.
A _DILATION_ is a transformation that changes size but no the shape , of a figure. A dilation can _ENLARGE_ or _REDUCE_ a figure.
If the dilation is done with the proper dilation points, it will change the size of the figure without altering its aspect, or deforming it.
If the scale factor is > 1, the figure will be enlarged. If the scale factor is < 1 then the figure will be reduced.
