MAT 7th GRADE
A diver in Acapulco jumps off a 150 ft cliff. His forward motion is 10 feet per second. The base of the cliff at the waters edge extends 38 feet beyound the top edge of the cliff. Will the diver land in the water?
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a 10 foot long teeter-totter pivots in the middle. a 50 lb boy sits on one end. Where must a 100 lb boy sit to balance the beam?
What would be the effect on satellites now in orbit if the earth stopped rotating
How many ways can a person select four books, two CDs, and one DVD from ten books, twenty CDs, and five DVDs?
Evaluate the function f(x) = -x2 + 5 for x = 4
Let x be a random variable representing dividend yield of Australian bank stocks. We may assume that x has a normal distribution with sigma =2.3%. A random sample of 17 Australian bank stocks has a sample mean of x bar 7.74%. For the entire Australian stock market, the mean di...
Let z be a random variable with a standard normal distribution, P(-1.9<=z<=2.1)
You draw two card from a standard deck of 52 cards and replace the first one before drawing the second. Find the probablity of drawing a 4 for the frist card and a 9 for the second card