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SAT scores: BAsed on data from the College Board, SAT scores are normally distributed with a mean of 1518 and a standard deviation of 325. a. Find the percentage of SAT scores greater than 2000; b. find the percentage of SAT scores less than 1500; c. find the percentage of SAT scores between 1600 and 2100.
What is the largest possible total area of the three pens? Note: The answer to this problem requires that you enter the correct.
Clear glass costs $3 per square foot and stained glass costs $10 per square foot. Express the cost of the window as a function of the radius of the stained glass pane.
suppose the length of a rectangle increases,but the perimeter remains at 70 feet. How does the width change?
a chemist needs 160 milliliters of a 33% solution but has only 21% and 53% solutions available. find how many milliliters of each that should be mixed to get the desired solution.
In an election between two candidates, 470 votes were cast. If the winner received 320 more votes than the loser, how many votes did the loser receive?
find that the sample mean and sample standard deviation
the volume of a rectangular prism is 208 cm2. if the area of one end is 16cm2, what is the length of the prism.
if a plane can travel 490 mph with the wind and 430 mph against the wind , what is the speed of the plane in still air?
carolyn and kim are selling lemonade this summer. it cost .10 to make each cup of lemonade.they are going to sell each cup of lemonade for .25. what is the least number of cups of lemonade they need to collect $10 more than they spent?
in a sample of 3980 pregnant women who were exposed to DES before giving birth, 63 developed tissue abnormalitites. Calculate the approximate number of of women per thousand who were found to have thee abnomality.
Add-on software B takes the programmer 10 hours, the graphic artist 4 hours, and the mathematician 2 hours.
A cup of coffee at 179 degrees is poured into a mug and left in a room at 66 degrees. After 7 minutes, the coffee is 133 degrees. Assume that the differential equation describing Newton's Law of Cooling is (in this case)dT/dt=k(T-66).What is the t..
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