Atype of lightbulb is labeled as having an average lifetime of 1000 hours. it's reasonable to model the probability of failure of these bulbs by an exponential density function with mean=1000. use this model to find the probability that a bulb i) fails within the first 200 hours ii) burns for more than 800 hrs

Ms. sutton recorded the word counts and scores of the top ten essays in a timed writing contest. the table shows her data. how does the word count of an essay relate to its score in the contest? word count tends to decrease as the score decreases. word count tends to increase as the score decreases. word count tends to remain constant as the score decreases. word count has no apparent relationship to the score of the essay.

Acredit card advertises an annual interest rate of 23%. what is the equivalent monthly interest rate?

Solve this problem! extra ! 3025/5.5 = a/90.75