Answer:
<em>y < 9</em>
Step-by-step explanation:
y - 2 < 7
This is a one-step inequality. You have y - 2 on the left side. You want y alone on the left side. If you add 2 to the left side, you eliminate the -2. You must do the same operation to both sides of an inequality, so add 2 to both sides of the inequality to eliminate the -2 on the left side.
y - 2 + 2 < 7 + 2
y < 9
Answer: y < 9
Answer: А. On average, the number of students going to an office hour varies from the mean by about 2.2 students
Step-by-step explanation:
The standard deviation is a measure of spread, which gives how values deviate from the average or mean value of a particular distribution. Hence, the standard deviation is usually defined about the average value of a distribution.
Therefore, for a certain random variable representing the number of student who visits office hours, the standard deviation will be defined about the average or mean value of the random variable Q.
Thus, stated as ; number of students going to an office hour varies from the mean by 2.2 on average.
Answer:
100
Step-by-step explanation:
10 times 10 is 100
You can add10 ten times to get the answer.
This is a statement, not a question.
is this your question?
"Angle of Elevation: A man standing near a building notices that the angle of elevation to the top of the building is 64 degrees. He then walks 240 feet farther away from the building and finds the angle of elevation to the top to be 43 degrees. How tall is the building ? Please draw a picture for me!"
