It wants us to solve for x and i’m very confused x= ?
2 answers:
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Answer:
The best way to know weather the formula y=x⁴-4x³+3x² is growing or not, is by graphing it.
As you can see in the attached picture:
- For -inf<x< 0 the graph decreases.
- For 0<x<0.634 the graph is growing
- For 0,634<x<2.366 the graph decreases
- For 2.366<x<+inf the graph is growing.
Therefore, the polynomial grows in the intervals stated before.
Let Tamara invests amount in 3% account. She invests
in 2% account.
The interest after t years is given by
. After 1 year the two interests are equal, that is
Thus, Tamara has to invest in 3% account and
in 2% account.