Algebra withThe table show the cost for different numbers of song downloads.2Which table shows a proportional relationship?9/14 ClaNumber ofSongsManca ShkullakCost$ 3.50$ 7.00$ 8.754.$13.25Number ofCostSongs9Class comm$ 3.50$ 8.00$ 8.754Add a class com7$12.25Number ofSongsCost$ 3.50$ 8.00$ 8.752.47.$13.25Number ofCostSongs$ 3.504.$ 7.00$ 8.75$12.25acer

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Answered: The table show the cost for different…

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter2: Linear Equations

Section2.6: Ratios And Proportions

Problem 57PFA

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Is it Proportional? In Exercises S17 through S25, determine whether or not the relationship described is a proportionality relationship. Sodas Is the cost of buying sodas at a fixed price per soda proportional to the number of sodas bought?
TEST YOUR UNDERSTANDING | FOR EXAMPLE 4.11 A small dog will weigh 20pounds at adulthood. The following table shows the weight w, in pounds, of the dog tmonths after birth. The difference D between the maximum weight of 20pounds and the current weight W, in pounds, is recorded in the third row of the table. t=time,inmonths 2 4 7 8 10 W=weight,inpounds 5.0 10.5 15.5 17.0 19.0 D=20-W 15.0 9.5 4.5 3.0 1.0 Find an exponential model for D as a function of t. Use your model for D to give a formula for W in terms of t.
Is it Proportional? In Exercises S17 through S25, determine whether or not the relationship described is a proportionality relationship. A Mans Height Is a mans height proportional to his age?
Number of study sessions Total Enrollment Morning class 25 16 Night class 20 22 If the total study sessions for the night class were proportional to the morning class, how many would you expect the night class to have? How does this compare to the actual amount of study session the night class has? If the night class were proportional to the morning class, we would expect them to have [ Select ] ["5", "10", "12", "14", "20", "25", "26", "34"] [ Select ] ["more", "less"] than the number of study sessions they have currently.
Wetlands offer a diversity of benefits. They provide a habitat for wildlife, spawning grounds for U.S. commercial fish, and renewable timber resources. In the last 200 years, the United States has lost more than half its wetlands. Environmental Almanac gives the percentage of wetlands lost in each state in the last 200 years. For the 30 of the lower 48 states, the percentage loss of wetlands per state is as follows. 59 83 42 73 50 87 33 38 45 90 27 87 20 35 48 60 38 45 24 42 68 50 35 30 59 9 55 51 51 35 Make a stem-and-leaf display of these data. (Use the tens digit as the stem and the ones digit as the leaf. Enter NONE in any unused answer blanks.) 0 9 1 NONE 2 ? 3 ? 4 ? 5 ? 6 0 8 7 ? 8 3 7 7 9 0
Wetlands offer a diversity of benefits. They provide a habitat for wildlife, spawning grounds for U.S. commercial fish, and renewable timber resources. In the last 200 years, the United States has lost more than half its wetlands. Environmental Almanac gives the percentage of wetlands lost in each state in the last 200 years. For the 30 of the lower 48 states, the percentage loss of wetlands per state is as follows. 59 83 42 73 50 87 33 38 45 90 27 87 20 35 48 60 38 45 24 42 68 50 35 30 59 9 55 51 51 35 Make a stem-and-leaf display of these data. (Use the tens digit as the stem and the ones digit as the leaf. Enter NONE in any unused answer blanks.)
In quantitative research, the main difference between surveys and correlational research is ? A. Correlational studies are larger than surveys B. Surveys can be correlational studies, so there are no differences C. With surveys researchers gather their own data; in correlational studies researchers typically use existing datasets D. Surveys are larger than correlational studies
Water and Carbohydrates Here are the number of grams of water and the number of grams of carbohydrates for a random selection of raw foods ( 100 g each). Is there a linear relationship between the variables? Water 73.78 74.17 86.26 83.21 85.21 80.05 76.36 Carbs 23.51 23.64 24.11 16.59 20.10 14.65 15.26 (a) Draw the scatter plot for the variables. Water and Carbohydrates Carbohydrates y 12 14 16 18 20 22 24 26 28 x 72 74 76 78 80 82 84 86 88 70 (b) Compute the value of the correlation coefficient. Round your answer to at least three decimal places. =r (c) State the hypotheses. H0 : H1 : (d) Test the significance of the correlation coefficient at =α0.05 The Critical Values for the PPMC Table. (e) Give a brief explanation of the…
Wetlands offer a diversity of benefits. They provide a habitat for wildlife, spawning grounds for U.S. commercial fish, and renewable timber resources. In the last 200 years, the United States has lost more than half its wetlands. Environmental Almanac gives the percentage of wetlands lost in each state in the last 200 years. For the 30 of the lower 48 states, the percentage loss of wetlands per state is as follows. 9 37 27 83 51 71 42 38 50 20 50 55 45 35 45 38 87 51 30 90 45 33 27 42 35 60 59 89 68 50 Make a stem-and-leaf display of these data. (Use the tens digit as the stem and the ones digit as the leaf. Enter NONE in any unused answer blanks.) How are the percentages distributed? Is the distribution skewed? Are there any gaps? (Select all that apply.) A. There is a gap showing that none of the lower 48 states has lost from 60% to 69% of its wetlands. B. These data are fairly symmetric, perhaps slightly skewed right. C. These data are strongly skewed left. D. There are…

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