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Answer:
Part A: When the temperature increases, the number of ice cream cones sold increases. It shows close to a linear relationship.
Part B: y = 2x+5
Step-by-step explanation:
Part A: When the temperature increases, the number of ice cream cones sold increases. It shows close to a linear relationship.
Part B: To write the line of best fit, use the points that run a line through the data.
You can connect (0,5) and (25,55) and have a line through the middle of the data.
This line intercepts the y-axis at (0,5) so b=5.
It's slope is
The slope is 2 and b=5 so y = 2x + 5.
Answer:
a) About 12%
Step-by-step explanation:
We need to find the interest rate required to achieve her goal, so we will need to use the interest-compound formula:
Where:
PV= Present Value
i= interest rate
FV= Future Value
n= number of periods
replacing the data provided:
solving for i:
first, divide both sides by 50.000 to simplify the equation:
Take roots of both sides:
±
solve for i:
±
We get two answers, but we look for a coherent value. So we take the positive one:
≈12