Use the appropriate information displayed by the graph at the bottom of the previous page to solve Exercises 97−98. 97. The mathematical model F = − 82 x 2 + 654 x + 620 describes the number of calories needed per day, F , by females in age group x with sedentary lifestyles According to the model, how many calories per day are needed by females between the ages of 19 and 30, inclusive, with this lifestyle? Does this underestimate or overestimate the number shown by the graph? By show much?
Use the appropriate information displayed by the graph at the bottom of the previous page to solve Exercises 97−98. 97. The mathematical model F = − 82 x 2 + 654 x + 620 describes the number of calories needed per day, F , by females in age group x with sedentary lifestyles According to the model, how many calories per day are needed by females between the ages of 19 and 30, inclusive, with this lifestyle? Does this underestimate or overestimate the number shown by the graph? By show much?
Solution Summary: The author calculates the amount of calories needed per day by females between the ages of 19 and 30 inclusive with sedentary lifestyles according to the mathematical model.
Use the appropriate information displayed by the graph at the bottom of the previous page to solve Exercises 97−98.
97. The mathematical model
F
=
−
82
x
2
+
654
x
+
620
describes the number of calories needed per day, F, by females in age group x with sedentary lifestyles According to the model, how many calories per day are needed by females between the ages of 19 and 30, inclusive, with this lifestyle? Does this underestimate or overestimate the number shown by the graph? By show much?
The bar graph shows the estimated number of calories per day needed to maintain energy balance for various gender and age groups for moderately active lifestyles.The mathematical modelW = -66x2 + 526x + 1030describes the number of calories needed per day, W, by women in age group x with moderately active lifestyles. According to the model, how many calories per day are needed by women between the ages of 19 and 30, inclusive, with this lifestyle? Does this underestimate or overestimate the number shown by the graph? By how much?
In Exercises 25–28, use graphs to find approximate solutions.
25. 2x = 5
26. ex = 4
27. 3x - 0.5 = 0
28. 3 - 2-x = 0
The bar graph shows the estimated number of calories per day needed to maintain energy balance for various gender and age groups for moderately active lifestyles.The mathematical modelM = -120x2 + 998x + 590describes the number of calories needed per day, M, by men in age group x with moderately active lifestyles. According to the model, how many calories per day are needed by men between the ages of 19 and 30, inclusive, with this lifestyle? Does this underestimate or overestimate the number shown by the graph? By how much?
Chapter 1 Solutions
Introductory Algebra for College Students with Integrated Review Books a la Carte Edition PLUS MyLab Math PLUS Worksheets (7th Edition)
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