Moyer

Newest questions posted by Moyer
  1. chemistry

    When boiled with concentrated aqueous alkali, fats and oils dissolve, but waxes do not. Explain the difference.
  2. math

    Some books give the following rule of thumb for finding the standard deviation of a normally distributed variable: s= range/6. Explain why this rule works.
  3. math

    What is the probability of 5 or fewer successes in a binomial experiment with 7 trials if in each trial, the porbability of success is .8?
  4. math

    A fair coin is tossed 10 times. What is the probability of getting exactly 6 heads?
  5. math

    Write an expression for the coefficient of x^997 in (x+1)^1008. Find its value.
  6. math

    Find the coefficient of x^3Y^2z^2 in (x+y+z)^7
  7. chemistry

    How many moles of water are produced by the complete combustion of 14.4g of C5H12?
  8. chemistry

    How many moles of sulfate ions are in 100 ml of a solution of .002 M Fe2(SO4)3?
  9. math

    The first term of a an infinite sequence is an equilateral triangle inscribed in a circle. The triangle has side n. Each new polygon in the sequence is formed by replacing the middle third of each side by two segments that have the same length as each
  10. math

    Suppose a car cost 32000 and you are allowed to make a down payment of 20%, but have to borrow the remaining 80%. If you are allowed 5 years to pay back the loan, how much will you pay back monthly?
  11. math

    Suppose a car cost 32000 and you are allowed to make a down payment of 20%, but have to borrow the remaining 80%. If you are allowed 5 years to pay back the loan, how much will you pay back monthly?
  12. math

    Identify two different divergent sequences a and b who difference a - b converges.
  13. math

    Consider the general quadratic eqaution in standard form, ax^2 + bx + c = 0. Let a = 1 and the roots be r1 and r2. Expand (x - r1) (x - r2). Write both algebraic expressions for and descriptions in words of b and c in terms of r1 and r2.