A boat travels 3 km upstream and 3 km back. The time for the round trip is 8 hours. The speed of the stream is 2 km per hour. What is the speed of the boat in still water?

What are the four mutually exclusive alternatives : First Cost: $500 Uniform Annual Benefit: $122 Salvage Value: $0 (a) Construct a choice table for interest rates from 0% to 100% (b) If the minimum attractive rate of return is 8% which alternative should be selected |

At the end of ten years how much money will be in account : a man deposits $500 in a savings account with a 5% annual interest. At the end of ten years how much money will be in the account? |

Find the total distance it travels : A ball drops from a height of 22 feet. Each time it hits the ground, it bounces up 70 percents of the height it fall. Assume it goes on forever, find the total distance it travels. |

Consuming enough kilocalories to support his activity : joseph plays basketball for his high school team and he is concerned that he is not consuming enough kilocalories to support his activity. which of the following would be the best indicator that he is not consuming adequate kilocalories? |

What is the speed of the boat in still water : A boat travels 3 km upstream and 3 km back. The time for the round trip is 8 hours. The speed of the stream is 2 km per hour. What is the speed of the boat in still water? |

Difference between forward spatter and back spatter : what is the difference between forward spatter and back spatter and which is more likely to be deposited on the object or person creating the impact? |

If the marr is given,which alternative should be selected : A firm is considering two alternatives that have no salvage value. A Initial Cost $10,700 Uniform Annual Benefits 2,100 Useful life, in years 8 B Initial Cost $5,500 Uniform Annual Benefits 1,800 Useful life, in years 4 |

What is the average rise in temperature per hour : the temperture is 33 degrees at 10am and 60 degrees at 4pm. what is the average rise in temperature per hour? |

Learned regarding expressions and emotion : Based on what you learned regarding expressions and emotion in Ch. 9, discuss the following scenario: Referring to the graphic, what do you think the person in the picture is feeling? How do you think a person of a different gender or different ethni.. |

## Distance and graphing in 3d spaceFind the distance from the origin to the line passing through the point P(3,1,5) and having the direction vector v=2i-j+k. |

## What is the mean score of all of these students togetherWhat is the mean score of all of these students together? Round to one decimal place. |

## Systems of equations application word problemStephanie bought eighteen pens, some black and the rest blue, for $8.22. The blue pens cost $0.06 more than the black pens. The number of blue pens that she bought was as close as possible to the number of black pens that she bought. What was the .. |

## What is the max height attained by the projectileA projectile is launched upward with a velocity of 96 feet per second from the top of a 90 foot stage. What is the max height attained by the projectile? |

## Find the ground speed of the planeA plane is flying at an airspeed of 340 mh at a heading of 124 degrees. A wind of 45 mph is blowing fro mthe west. find the ground speed of the plane. |

## Linear algebra-linear mappingConsider the following linear mapping from C[-pi,pi] into itself: L(f)=integral from -pi to pi of G(x),h(y),f(y)dy for any function f(x) in C[-pi,pi]. |

## How many observations fall into various categoriesWhich of the following indicates how many observations fall into various categories? |

## Range of scores on final examThe professor counts his midterm as 2/3 of the grade and his final as 11/3 of the grade. Wendy scored only 48 on the midterm. What range of scores on the final exam would put her average between 70 and 79 inclusive? |

## Find the terminal pointfind the terminal point p(x,y) on the unit circle determined by the given value of t. |

## What dimensions will give the largest printed areaA poster is to have an area of 150 in2 with 3 inch margins at the bottom and sides and a 5 inch margin at the top. What dimensions will give the largest printed area? (Give your answers correct to one decimal place.) |

## Write a 90% confidence interval for the mean daily incomeThe consultant who advised the city on this project predicted the parking revues would average $130 per day. Based on your confidence interval, do you think the consultant was correct? Why? |

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