There is something wrong with drawing. IC intercepts with AB at A.
Answer:
The value of 
is 2.
Step-by-step explanation:
The standard form of the equation of the line is of the form:
Where:
, 
- Independent and dependent variable, dimensionless.
- Slope, dimensionless.
- y-intercept, dimensionless.
Given that line 
is perpendicular to 
, the slope is equal to:
Where 
is the slope of the perpendicular line, dimensionless.
If 
, then:
If 
and 
, the y-intercept of the line is:
The equation of the line is 
. Given that 
and 
, the value of is:
The value of is 2.
Answer:
The last one
Step-by-step explanation:
Yes, it would result in 1/0, which is undefined.
The final part of the question is asking;
How much did all (99.7%) of the students spend on textbooks in a semester
Answer:
almost all (99.7%) of the students spent between $165 and $315 on textbooks in a semester.
Step-by-step explanation:
The standard deviation rule describes to us that for distributions that have the normal shape, approximately 99.7% of the observations fall within 3 standard deviations of the mean.
In this question, we are given that; Mean = 240 and Standard deviation= 25
So, 3 standard deviation below the mean = Mean - 3(standard deviation)
= 240 - (3 × 25)
= 240 - 75 = 165
Now, 3 standard deviation above the mean = Mean + 3 standard deviation = 240 + (3 × 25)
= 240 + 75 = 315
So, almost all (99.7%) of the students spent between $165 and $315 on textbooks in a semester.
