Your answer is <span>–4.9t^2 + 15t + 1 = 0
Hope this helps.
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What table? please provide a picture and I'll try and answer.
Answer:
(-9, -3) - Interval over which the difference of the numbers of sales is negative.
(4.9, 10 ) - Interval over which the difference of the numbers of sales 15 positive
(-3, 10) - Interval over which the difference of the numbers of tale decreasing
(0, 4.9) - Interval over which the difference of the numbers of sales is increasing
Hope this helps!
The same way you solve any other math problem:
You use the information you're given, and all the formulas, equations, and rules
that you know that might connect what you're given to what you need to find, and
then choose the best one to find the missing answer from the given information.