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• F = P(1 + r)^n F = future amount P = principle amount r = interest rate n = number of times compounded 1) semiannually for 5 years: n = 2*5 = 10 (720)(1 + 0.062)^10 = 720(1.062)^10 = 720(1.8249) = 1313.95 2) semiannulally for 2 yr…

  in Math problem? Comment by mathematica June 2021
• F = P(1 + r)^n F = future amount P = principle amount r = interest rate n = number of times compounded 1) semiannually for 5 years: n = 2*5 = 10 (720)(1 + 0.062)^10 = 720(1.062)^10 = 720(1.8249) = 1313.95 2) semiannulally for 2 yr…

  in Math problem? Comment by mathematica June 2021
• x^4 - 8x^2 + 15 assume a = x^2. now you have a^2 - 8a + 15 = (a - 3)(a - 5) substituting x^2 back in: (x^2 - 3)(x^2 - 5) neither of those qualify for the difference of squares formula, so you're pretty much done factoring. ------------ -6…

  in How do you factor x^4-8x^2+15? Comment by mathematica June 2021
• x^4 - 8x^2 + 15 assume a = x^2. now you have a^2 - 8a + 15 = (a - 3)(a - 5) substituting x^2 back in: (x^2 - 3)(x^2 - 5) neither of those qualify for the difference of squares formula, so you're pretty much done factoring. ------------ -6…

  in How do you factor x^4-8x^2+15? Comment by mathematica June 2021
• 25% juice solution = x (liters) 10% juice solution = 15 - x (liters) Take: (%)(Liters) + (%)(Liters) = (Total %)(Total Liters) (0.25)(x) + (0.10)(15-x) = (0.18)(15) 0.25x + 1.5 - 0.10x = 2.7 0.15x + 1.5 = 2.7 0.15x = 1.2 x = 8 8 L of …

  in alegbra wizards needed!!? Comment by mathematica May 2021
• 25% juice solution = x (liters) 10% juice solution = 15 - x (liters) Take: (%)(Liters) + (%)(Liters) = (Total %)(Total Liters) (0.25)(x) + (0.10)(15-x) = (0.18)(15) 0.25x + 1.5 - 0.10x = 2.7 0.15x + 1.5 = 2.7 0.15x = 1.2 x = 8 8 L of …

  in alegbra wizards needed!!? Comment by mathematica May 2021