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Ms. Jones installs and demonstrates smoke detectors. There are two types of smoke detectors, Type A and Type B. Type A requires 1 hour to install and 1/3 hour to demonstrate. Type B requires 1.5 hours to install and 1/5 hour to demonstrate. Company rules require Ms. Jones to work a minimum of 20 hours as an installer and a maximum of 15 hours a week as a demonstrator. She earns $8 per hour as an installer and $5 per hour as a demonstrator. How many of each type of alarm should she install and demonstrate to maximize her income?
A random sample of 70 voters found that 38% were going to vote for a certain candidate. Find the 95% limit for the population proportion of voters who will vote
What is the bound of a confidence interval with a width of 11? Report your answer to two decimal places.
From a balloon 910 feet high, the angle of depression to the ranger headquarters is 64° How far is the headquarters from a point on the ground directly below the ballon?
If you deposit $2000 into a fund paying 18% interest compounded monthly, how much can you withdraw at the end of each month for one year.
Jennifer, who is 63 inches tall, casts a shadow that is 95 inches long. At the same time, Elizabeth's shadow is 101 inches long. How tall is Elizabeth?
An object has a constant acceleration of 42 ft per second squared, an initial velocity of 18 ft per second, v(0)= 18, and an initial position of 3 ft, s(0)=3. Find the position function describing the motion of the objec
The annual sales of romance novels follows a normal distribution, however the mean and std deviation are not known. 40% of the time the sales exceed 470,000 books and 10% of the time sales exceed 500,000 books. What is the number of books sold in ..
Why do we measure perimeter in ft, area in ft^2 (or feet squared), and volume in ft^3 (or feet cubed)? What does each mean within the strand of measurement?
Graph the function and answer the question using graph - What is the significance of the vertical asymptote (what does it mean in this context)?
Let U = {60 Minutes, American Idol-Tues., American Idol-Wed., CSI, CSI: Miami, Desperate Housewives, Friends, Grey's Anatomy, Law & Order, The Apprentice}. Construct a Venn diagram illustrating the sets.
Use row operations on the augmented matrix to solve the given system of linear equations:
solve using inequality A car rental company has two rental rates. Rate 1 is $63 per day plus $0.18 per mile. Rate 2 is $126 per day plus $0.09 per mile. If you plan to rent for one week, how many miles would you need to drive to pay less by taking..
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