Grade Inflation. The bar graph shows the percentage of U.S. college freshmen with an average grade of A in high school. The data displayed by the bar graph can be described by the mathematical model p = 4 x 5 + 25 , where x is the number of years after 1980 and p is the percentage of U.S. college freshmen who had an average grade of A in high school. Use this information to solve Exercises 97-98 . a. According to the formula, in 2010, what percentage of U.S. college freshmen had an average grade of A in high school? Does this underestimate or overestimate the percent displayed by the bar graph? By how much? b. If trends shown by the formula continue, project when 57% of U.S. college freshmen will have had an average grade of A in high school.
Grade Inflation. The bar graph shows the percentage of U.S. college freshmen with an average grade of A in high school. The data displayed by the bar graph can be described by the mathematical model p = 4 x 5 + 25 , where x is the number of years after 1980 and p is the percentage of U.S. college freshmen who had an average grade of A in high school. Use this information to solve Exercises 97-98 . a. According to the formula, in 2010, what percentage of U.S. college freshmen had an average grade of A in high school? Does this underestimate or overestimate the percent displayed by the bar graph? By how much? b. If trends shown by the formula continue, project when 57% of U.S. college freshmen will have had an average grade of A in high school.
Solution Summary: The author calculates the percentage of U.S. college freshmen that had an average grade of A in high school in 2010.
Grade Inflation.The bar graph shows the percentage of U.S. college freshmen with an average grade of A in high school.
The data displayed by the bar graph can be described by the mathematical model
p
=
4
x
5
+
25
,
where x is the number of years after 1980 and p is the percentage of U.S. college freshmen who had an average grade of A in high school. Use this information to solve Exercises 97-98.
a. According to the formula, in 2010, what percentage of U.S. college freshmen had an average grade of A in high school? Does this underestimate or overestimate the percent displayed by the bar graph? By how much?
b. If trends shown by the formula continue, project when 57% of U.S. college freshmen will have had an average grade of A in high school.
a)
[1√2-31x+1√3-11y = x (1 - √2) + √34
LI√2-21x-1√3-3/4= √34 -
√2x-4
Please Help me answer this linear algebra question. This is a practice textbook question.
1. a scientist observed a bacterium in a microscope. it measured about .0000029 meter in diameter which of the following is closest to it? A- 2 x 10^-6, B- 2 x 10^-5, C- 3 x 10^-5, or D- 3 x 10^-6
2.express the product of 500 and 400 in scientific notation. is it 2 x 10^5 or 2 x 10^4 or 2 x 10^3 or 20 x 10^4
Chapter 1 Solutions
Algebra And Trigonometry 6th. Edition Annotated Instructor's Copy Blitzer
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