Schlegel Department Store sells gift certificates—redeemable for store merchandise—that expire one year after their issuance. Schlegel has the following information pertaining to its gift certificates sales and redemptions: Unredeemed certificates at 12/31/X1 $ 90,000 20X2 sales 400,000 20X2 redemptions of prior year sales 60,000 20X2 redemptions of current year sales 325,000

Is the square root of 4 plus the square root of 16 rational?

The position of a moving particle is given by the position function: f(t)=-9t-t^2-0.2t^3+0.1t^4 a. at what time does the particle reverse direction? b. when is the displacement positive? (round one decimal place and answer in interval notation) c. when is the displacement negative? (round one decimal place and answer in interval notation) d. when is the particle’s acceleration positive? (round one decimal place and answer in interval notation) e. when is the particle’s acceleration negative? (round one decimal place and answer in interval notation)

Add, subtract, multiply, or divide as indicated. list any restrictions for the variable(s) and simplify the answers when possible. 1) x-2 / x+5 + 3x / 2x-1 2) x+6 / x-6 - x^2 / x+6 3) x+9 / x-4 + x+2 / x^2-11x+28 4) x / x^2-64 + 11 / 2x^2+11x-40 5) 5 / x + 11 / x-3 - x-4 / x^2+2x-15