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There are 24 families living in the Willbrook Farms Development. Of these families 12 prepared their own federal income taxes for last year, 7 had their taxes prepared by a local professional, and the remaining 5 by H&R Block. (a) What is the probability of selecting a family that prepared their own taxes? (Round your answers to 3 decimal places.) (b) What is the probability of selecting two families both of which prepared their own taxes? (Round your answers to 3 decimal places.) (c) What is the probability of selecting three families, all of which prepared their own taxes? (Round your answers to 3 decimal places.) (d) What is the probability of selecting two families, neither of which had their taxes prepared by H&R Block? (Round your answers to 3 decimal places.)
Two tracking stations are on the equator 151 miles apart. A weather balloon is located on a bearing of N 34°E from the western station and on a bearing of N 15°E from the eastern station. How far is the balloon from the western station? Round to t..
A car is traveling on a straight road with velocity 55 ft/sec at time t = 0. For 0 ≤ t ≤ 18 seconds, the car's acceleration a(t) , in ft/sec2, is the piecewise linear function defined by the graph above.
What was the initial size of the culture?
Explain in your own words how factoring is used to solve quadratic equations. Demonstrate the process with an example.
a room measures 16fy by 19 ft the ceiling is 9 ft above the floor a gallon of paint will cover 77.8 ft^2 how many gallons are needed to paint the room.
What is a binomial factor? In your own words, describe the process of factoring by grouping. Explain how the distributive property is used in this process. Give a detailed example of this process.
During the first part of a trip, a canoeist travels 42 miles at a certain speed. The canoeist travels 21 miles on the second part of the trip at a speed 5 mph slower. The total time for the trip is 2 hours. What was the speed on each part of the t..
A shoe salesperson is paid the greater of $600 per week or 11% of sales. At what volume of sales per week will he start to earn more from the commission based compensation?
triangle ABC has vertices A(0, 6), B(4, 6), and C(1, 3). Find the orthocenter of triangle ABC.
A building 260 feet tall casts a 70 foot long shadow. Find the angle of elevation of the sun to the nearest degree.
The circumference of a sphere was measured to be 90000 cm with a possible error of 050000 cm. Use linear approximation to estimate the maximum error in the calculated surface area.
Consider the following six" postulates" Art, Bev, Cheryl , Dot and Ed all attend the same college where one is a freshman, one is a sophomore, one is a junior, one is a senior and one is a graduate student.
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