A previous study of nickels showed that the the standard deviation of the weight of nickels is 250 milligrams. A coin counter manufacturer wishes to find the 95% confidence interval for the average weight of a nickel. How many nickels does he need to weigh to be accurate within 25 milligrams?

How many seconds will it take for the rock to hit the ground : A rock from a tower that is 423 ft high. As its height is given by the formulah=423-16t squared. How many seconds will it take for the rock to hit the ground. |

What actions can it take to be in compliance : If the Friendly National Bank experiences a required reserves deficit, what actions can it take to be in compliance with the existing required reserves ratio? |

What are the three consecutive even numbers : what are the three consecutive even numbers that have a product of 480? I know it's 6, 8, 10. But how can you solve it using factoring. x(x+2)(x+4) = 480 simplifies down to x^3 + 6x^2 + 8x - 480 = 0. Then what do you do? |

State structures obey the octet rule : Consider the Lewis Resonance structure for the chlorite ion. How many total structures can be drawn, and how many of those structures obey the octet rule? |

How many nickels does he need to weigh : find the 95% confidence interval for the average weight of a nickel. How many nickels does he need to weigh to be accurate within 25 milligrams? |

Find the 2nd derivative : Which of the following is the best method to find the 2nd derivative |

State what was the potential versus sce : A corrosion potential of -0.299 V versus SCE was measured for a corroding alloy. what was the potential versus SCE? |

How many revolutions will the graph of the circular helix : How many revolutions will the graph of the circular helix r(t)=acosti + asintj + 0.2tk make in a distance of 10 units measured along the z-axis? |

How many shares of each will she purchase : Suppose Wal-Mart stock is selling at $59 a share and Mattel stock is selling at $28 a share. Amy has a maximum of $6000 to invest. She wishes to purchase four times as many shares of Wal-Mart as of Mattel. Only whole shares of stock can be purchas.. |

## Use to assemble a cake or build a house is importantThe order that we use to assemble a cake or build a house is important. The same holds true for evaluating any expression in math. We call this the Order of Operations. In your own words, explain the Order of Operations. |

## Estimating the true proportion of college studentsIdentify the point estimate for estimating the true proportion of college students who prefer that drink. |

## Linear system of equations in real exampleIn 2001, 400 seat Boeing 747s were priced at $200 million each, 300 seat Boeing 777s were priced at $160 million, and 200 passenger Airbus A321s were priced at $60 million. |

## Determine the image in the w-plane of the lineConsider the transformation w = (z + 2)2 where w = u+ jv and z = x + jy. Determine the image in the W-plane of the line y = x + 1 in the Z-plane. |

## Find the dimensions of the playground that maximixea rectangular playground is to be fenced and divided into two by another fence parrallel to one side of the play ground. 216 feet of fencing is used.find the dimensions of the playground that maximixe the total enclosed area. |

## How to find the time and the position of the particlefind both the time and the position of the particle when the particle is further to the left. justify |

## How many hamburgers were sold on saturdayon Saturday a local hamburger shop sold a combined total of 364 hamburgers and cheeseburger. The number of cheeseburgers were sold were three times the numbers of hamburgers sold. How many hamburgers were sold on Saturday. |

## How long is a side of the playgroundA walkway forms the diagonal of a square playground. The walkway is 14in long. To the nearest tenth of a Meter, how long is a side of the playground? |

## Word problem with fractionsA survey of college sophomores showed that 5/6 of the males were taking a mathematics class and 3/4 of the females were taking a mathematics class. |

## How many different committees are possibleFrom a group of 8 women and 6 men, a committee consisting of 4 men and 3 women is to be formed. how many different committees are possible? |

## Find the maximum total area he can encloseA rancher wants to fence in 3 adjacent rectangular pens in a row. Adjacent pens share one fence, and all pens are of equal size. If the rancher uses 144 yards of fencing, find the maximum total area he can enclose. |

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