Which is the most economical purchase?

a. 15 ounces for $1.18

b. 22 ounces for $1.75

c. 18 ounces for $1.39

d. 20 ounces for $1.55

Water molecules states between the liquid and gaseous states : Water molecules change their states between the liquid and gaseous states. A.only when water vapour is saturated B.at all times becauseevaporation and condensationoccur any time C |

What is the socially optimal number of movie projections : The total number of movie projections, M, is the sum of the number paid for by each of the two persons: M = MS + ML. Spielberg and Lucas both have income of 70, and the price of both the private good and a movie projection is 1. They are limited, .. |

What was the percent increase in the average salaries : What was the percent increase in the average salaries between the two years? Round to the nearest tenth of a percent.a. 7.6% |

State the orignal phosphare standard solution : Pure solid NaH2PO4 is dissolved in distilled water, making 100.0ml of solution. 10 ml of this solution is diluted to 100.00 ml to prepare the orignal phosphare standard solution. |

Which is the most economical purchase : Which is the most economical purchase? |

What is the probability that the outcome of the coin toss : We flip a fair coin and then draw a ball from the first or second urn depending upon whether the outcome was heads or tails respectively. What is the probability that the outcome of the coin toss was heads, given that a white ball was selected. |

What is the market clearing price for pollution permits : The mayor also considers issuing pollution permits and establishing a market for these permits. Plant A is given an initial endowment of permits such that it must engage in 60 units of pollution abatement (reduction). Plant B is given an initial e.. |

Find amounts of rare elements are found within groundwater : Trace amounts of rare elements are found within groundwater and are of interest to geochemists. Europium and terbium are lanthanide-series elements that can be measured from the intensity of their fluorescence emitted when a solution is illuminate.. |

Explain the characteristic of oligopolistic industries : A market has the following characteristics: there are many firms, few barriers to entry, each firm acts independently with differentiated products, and no possible long-run economic profit. The difference between a perfectly competitive firm and a .. |

## Determining probability of pinochleWhat is the number of possible orderings of a Pinochle deck? What is the probability that a hand contains both Queens of Spades and both Jacks of Diamonds? |

## How far has billy cycledBilly likes to go cycling. His bike has wheels of a diameter 75. He has invented a counter for his bike, which counts the revolutions the wheel makes. One day the counter shows 370 revolutions. How far has billy cycled? |

## Equations and functions from word problemsYou are managing a small assembly operation building toy cars. Due to increased demand, you need to hire an employee in addition to the two that are already building this line of toy assemblies. For the questions below, show all your work in deriv.. |

## Estimate of the population meanFrom the information given here, determine the 95% confidence interval estimate of the population mean. |

## Draw the unit circle and plot the pointDraw the unit circle and plot the point P=(3,2). Observe there are TWO lines tangent to the circle passing through the point P. Answer the questions below with 3 decimal places of accuracy. |

## Determining riemann sumsGiven f(x)=x^3 on [0,1] and the partition P={0,1/8,1/3,2/3,1}, find four different Riemann sums R(f,P). Show that Chi_Q is discontinuous at every point where Chi_Q is the characteristic function for Q - Rational numbers. |

## What is the probability that one of these resistors pickedwhat is the probability that one of these resistors picked at random will have a resistance of 16 ohms or more? |

## Difference between total revenue and total cost of the itemEstimate the profit for each item as difference between total revenue and total cost of the item and |

## Find a 95% confidence interval for the true percentA random sample of 700 NAU students in Flagstaff found 287 NAU students who drink coffee daily. Find a 95% confidence interval for the true percent of NAU students in Flagstaff who drink coffee daily. Express your results to the nearest hundredth .. |

## Reduction of mail float-net savingsPronet has annual sales of $724 million from its 600 retail stores. Pronet can reduce its mail float by 2 days through the use of wire transfers. The annual cost of the wire transfers is expected to be $105,610. |

## How old is the pottery in the caveAn archacilogist find s pottery in a Middle Eastern cave which contains only 30% as much carbon14 as a piece of modern pottery. how old is the pottery in the cave? (The half life of fear on 14 is 5730 years) |

## Calculus applied to commereceThe resale value of a certain industrial machine decreases at a rate that depends on its age. When the machine is t years old, the rate at which its value is changing is -960e^ -t/5 dollars per year. |

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