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BMAD

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Everything posted by BMAD

  1. Many of my algebra and precalculus students think the 'inverse function' of f(x), often written f^(-1)(x), is the same as the reciprocal 1/f(x) (mistaking the -1 for an exponent). This (as I am obliged to remind them) is almost always false. But can you find at least one function whose inverse is also its reciprocal? Tiebreaker: Find as many as you can!
  2. King Chester awarded a triangular piece of land to his favorite court jester. The three sides measured 150 2/3 yards, 195 3/4 yards, and 45 yards 3 inches. His wife had long been asking him to have a piece of land where she could build a home, a garden, and a temple in each corner. The jester told his wife the good news but was surprised that shew as unhappy. Can you tell why she was unhappy?
  3. Prem was doing his homework. With a radius of 20cm he drew a circle. He then drew 7 lines inside the circle with the help of a foot-rule. Can you tell in how many minimum and maximum divisions was the circle divided by these lines?
  4. BMAD

    PowerCo

    Your score adds up to 1030 but there is actually a more optimal answer
  5. BMAD

    The investment Game

    note that the projected amount for day 3 is already included and is based off the assumption that nothing in terms of purchases or other market conditions change.
  6. PowerCo has three plants that must provide enough electricity to four cities. Shipping to each city from the various plants costs varying amounts. Moreover each plant has a set supply of energy that it can send to the various cities. The specifics of this information are outlined in the chart below: From City 1 City 2 city 3 city 4 Supply Plant 1 $8 $6 $10 $9 35 Plant 2 $9 $12 $13 $7 50 Plant 3 $14 $9 $16 $5 40 Demand 45 20 30 30 How can PowerCo best minimize its costs?
  7. Lajwanti of village Lajpur was a young, demure, and lively woman. Sarita, her neighbor, asked her once, on seeing her with a gentleman, "What is your relationship with the gentleman who accompanied you?" Lajwanti replied, "I will neither tell you his name nor my relations with him. I will, however, reveal that his mother-in-law and my mother-in-law are mother and daughter." How were these two related to each other?
  8. BMAD

    What am I?

    I'm in a rock, not in a stone I'm in marrow, not in bone I'm in a bolster, not in a bed I'm not living , I'm not dead What am I?
  9. BMAD

    The investment Game

    stock projections for day 3
  10. BMAD

    The investment Game

    80percent purchases 20percent randomness to reflect larger market conditions
  11. BMAD

    The investment Game

    Projected change happens about half the day (maybe 3/4s of the day if it is a busy day)
  12. "What time is it, Rory?" asked Cory one lazy day. "When I checked my watch this morning, the hour hand was where the minute hand is now, and the minute hand was one minute before where the hour hand now sits. I notice both hands are now at exact minute divisions." What is the time now? When did Rory check this morning?
  13. I have lots of photo prints, in two sizes: (a) 4 x 6 inches, and (b) 5 x 7 inches. I put photos up on the wall, each one can be vertical or horizontal, so that they tile into a big rectangle (with no overlapping or cutting, of course). i) Prove I can't make a 19 x 19-inch "photo-square." II) Show me how to tile the 29 x 29 photo-square.
  14. The product, the quotient, and the difference of two real numbers are all the same. Find the sum of the two numbers.
  15. BMAD

    The investment Game

    here is an update on day 1, feel free to make any trades necesarry. Day 1 ends at midnight. The prices projected are only tentative based on current sales and market conditions.
  16. BMAD

    The investment Game

    I had to mark your purchase down to 2 Crass because 3 would put you over your dollar amount
  17. BMAD

    Guess the Rule

    Large blue rectangle to Circle 3: {3, 6, 7, 9, 10, 11, 13}
  18. BMAD

    The investment Game

    Stocks SMUK FUL CRASS HOTY EXCT POR HUNR BAlZ PUNTY HORID Sale Price 564 212 626 285 374 299 184 869 335 695 Available 10,000 10,000 10,000 10,000 10,000 10,000 10,000 10,000 10,000 10,000 Simply reply to the post with the name of the stock(s) and the quantity you wish to purchase. Remember you only have $10,000 to start. First come first serve. Resell of the stock price will not be listed until day 2. Day 2 will start approximaetly 5/19/13 at midnight.
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