Mathematics, 20.02.2021 03:20 bluefish743
n 2009, U. S. families spent, on average, $570 for back-to-school supplies. The number rose to $655 in 2015. Let y represent the average amount of back-to-school spending and x the number years since 2009. Find a linear equation that fits the data and use your equation to predict the back-to-school spending in 2032.
Answers: 2
Mathematics, 21.06.2019 16:00, rosehayden21
Aswim teacher sells lesson packages. the best deal has the highest ratio of lessons to total cost. swim lesson packagesnumber of lessons total cost$10$4010 1 $8015$80which package is the best deal? l lesson for $105 lessons for $4010 lessons for $8015 lessons for $80mark this and returnsave and exit
Answers: 3
Mathematics, 21.06.2019 19:30, ray2220
The position of a moving particle is given by the position function: f(t)=-9t-t^2-0.2t^3+0.1t^4 a. at what time does the particle reverse direction? b. when is the displacement positive? (round one decimal place and answer in interval notation) c. when is the displacement negative? (round one decimal place and answer in interval notation) d. when is the particle’s acceleration positive? (round one decimal place and answer in interval notation) e. when is the particle’s acceleration negative? (round one decimal place and answer in interval notation)
Answers: 3
n 2009, U. S. families spent, on average, $570 for back-to-school supplies. The number rose to $655...
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