Stitch wants to buy a shirt for $35. If sales tax is 2.9%, how much will he pay for the shirt?
1 answer:
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Two or zero expresses the possible number of positive real solutions for the given polynomial equation.
Answer: Option D
<u>Step-by-step explanation:</u>
Given equation:
First, we put hit and trial method to find out the one solution. So, if we put x=4 then the above expression will become zero. We can also write the above expression as
We know the formula, , make use of this, we get
So,
Hence, from the above expression, we have three values of x as x= 4, 2.64 and -2.64