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Solve the problem. A newspaper article about the results of a poll states: "In theory, the results of such a poll, in 99 cases out of 100 should differ by no more than 5 percentage points in either direction from what would have been obtained by interviewing all voters in the United States." Find the sample size suggested by this statement.
165
2402
4145
3394
Presume in community 1, 52% of individuals who will vote in election favor candidate A while while 48% favor candidate B. In community 2, 46% favor candidate A and 54% favor B.
Two fires towers are 30 kilometers apart, tower A being due west of tower B. A fire is spotted from the towers, and the bearings from A and B are E 14 N and W 34 N. Find the distance d of the fire from the line segment AB.
The lowest flying speed v (in ft/s) at which a certain airplane can fly varies directly as the square root of the wing load w (in lb per sq. ft). If V=88 ft/s when w= 16 lb/sq ft, find the derivative of v with respect to w.
The speed of train A is 20mph slower than the speed of train B. Train A travels 220 miles in the same time it takes train B to travel 320 miles. Find the speed of each train.
Please solve the following system of equations using both of these methods (solve once using substitution and once using elimination):
Two tracking stations are on the equator 148 miles apart. A weather balloon is located on a bearing of N 32°E from the western station and on a bearing of N 20°E from the eastern station. How far is the balloon from the western station? Round to t..
Which asset would the risk-averse financial manger prefer?
The average cost per sweatshirt when X sweatshirts are printed is modeled by the formula A= 4.50x+200/x. Determine how many sweatshirts the company must print to have an average cost per sweatshirt of $4.52.
Write the vertical motion equation for this problem.
After 10 hours of radiation decay 50mg of a substance remains. After 15 hours 30mg remained.
described the height of the ball above the ground, h, in feet, t seconds after the fall begins. How long will it take the ball to strike the ground?
Identify the critical points and find the maximum value and minimum value on the given interval g(x)=1/1+x^2 ; I=[-3,1]
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