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Does this have anything to do with school? Do you need help sir?
This is the first half of the question.
Let's solve your equation step-by-step.5x=9x3+2x2−5x+4Step 1: Subtract 9x^3+2x^2-5x+4 from both sides.5x−(9x3+2x2−5x+4)=9x3+2x2−5x+4−(9x3+2x2−5x+4)−9x3−2x2+10x−4=0Step 2: Use cubic formula.x=−1.31953Answer:<span>x=<span>−1.31953
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Answer: 10%
Step-by-step explanation:
Let the sale tax = $x
Cost price (CP) of the surfboard = $920
Sale tax with cost price of the surfboard = $1,012
Therefore the sale tax ($x) = $1,012 - $920
=$92
Therefore the sale tax percentage = ⁹²/₉₂₀ x 100
= 10%
