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Kisachek [45]
3 years ago
13

Interpret the slope for the situation: The number of people who worked for the railroads in the United States each year from 198

9 to 1995 can be modeled by the equation y = -6.61x + 229, where x represents the number of years since 1989 and y represents the number of railroad employees (in thousands).
Mathematics
1 answer:
marysya [2.9K]3 years ago
3 0

Answer:

-6.61

Step-by-step explanation:

Unless there is more included in this problem then -6.61 is the slope. Slope is represented as m in y=mx+b. Simply substituting in the slop and y-intercept shows that m=-6.61 or the slope is -6.61.

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The median starting salary for new law school graduates is determined by
Elena-2011 [213]

Step-by-step explanation:

1) we would have the expectation that b₅ < 0 because b₅ shows how salary responds to law school ranking. As the rank of law school increases then median starting salary for new law school graduates declines. there is an inverse relation between salary and rank, Coefficient of rank, b5 will be negative since it is less than 0

ii) B₁ is going to be positive because as median LSAT score for the graduating class goes up, so does the salary of graduates. we have B1 >0

B₂ will be positive as college median GPA rises, so does graduate salary.

B₃ will be positive because if the more volumes of book in library, the greater possibility of getting higher salary, so B₃ >0.

B₄ >0 as if annual cost is high , then there would be indictaes more facilities of learning for students, leading to more chances of high salaries , hence B4 >0.

B5<0 this has been explained in 1.

iii) predicted ceteris paribus difference in salary for schools with a median GPA different by one point

= coefficient of GPA

=0.248

= this 24.8% in percentages B₂ tells us that when other factors are held constant,increasing median gpa by 1 would cause 24.8 percent increase in salary predicted.

iv)holding other variable factors constant, increasing the volume in the law library would bring about predicted salary increase by 0.095%

v) due to the inverse relationship between rank of law school and salary, it is better to attend a law school with lower rank than that with higher rank

difference in ranking of 20 = 20*(-0.0033)

= -0.066  x 100

= -6.6%

if rank is lower by 20 units , then we will have salary to be 6.6% higher

8 0
3 years ago
EASY EASY EASY QUESTION A hot air balloon descends from an altitude of 2,000 feet at a constant rate of 90 feet per minute. The
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Answer:

y=90+2000

Step-by-step explanation:

6 0
3 years ago
As part of a traffic safety campaign a speed detector was used to record speed in the entrance driveway to the Jefferson High Sc
Firlakuza [10]
<span>1. The highest speed is 39 mph. 2. 50 percent of the students drove between 15 and 28 mph. 3. A box and whisker plot shows the median speed. 4. 20 is the median speed for this data set. 5. A box and whisker plot is helpful in plotting variations in data and making it easy to read. It is also useful when there are multiple sets of data.</span>
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3 years ago
A day at the spa costs $125. You leave a 20% tip. How much tip did you leave?
OverLord2011 [107]

Answer: $25

Step-by-step explanation:

20% = 0.20

125 x 0.20 = 25

$125 + $25 = $150 (the entire bill)

4 0
3 years ago
Read 2 more answers
Given: y= -7X-14<br> 1. What is the slope of the graph of the given function?
yawa3891 [41]

Answer:

Slope intercept form: y=mx+b

The m above always represents the slope of the equation.

The slope of y= -7x-14 is   <em>-7</em>

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