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What adds to be 2 and multiplies to be -3? A ball is punted from 1 m off the ground, it leaves the foot traveling at 23 m/s at 50° from the horizontal and lands on the ground.? How do I solve f(x+3) when f(x) = 4-x^2? Let say we have 3380 W power supply that has 12V DC and 281.5 A output.Can we run a 12VDC motor 2A that need 24W power? If you dilute 250mL of a 12.0M solution of HNO3 to a final volume of .500L what will be the concentration of the diluted solution?