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39 women used skin cream for 22 weeks. At the end of the period, a dermatologist judged whether each womam exhibited skin improvement. The results show that 22 women improved. Do the data provide sufficient evidence to conclude that the cream will improve the skin of more than 50% of women? Test using α=0.05 and the p-value method.
If triangle DEF has vertices with the coordinates D (9,-3), E(-6,3) and F(3,6), what are the verticles of triangle D' E' F' under the dilation with the scale factorof 2/3 and the center of the origin (0,0)?
(a) Recall that a geometric sequence is a sequence of the form a, ar, ar^2, ar^3, ... At the MATLAB command prompt (not in an M-File), create a for-loop which prints the first 7 terms of this sequence when r = 1/3, a = 1. Include the outpu..
You are on an airplane traveling 30° south of due west at 140 m/s with respect to the air. What is the speed of the plane with respect to the ground
A helicopter flies over the arctic ice pack at a constant altitude, towing an airborne 129 kg laser sensor that measures the thickness of the ice, find the tension in the cable towing the sensor
You are going to go across Mississippi river from East to West bank by rowing your kayak. You know you can row 3 m/s in still water. What direction you should aim at in order to go across the river in the shortest time
A Mercedes-Benz 300SL (m = 1700 kg) is parked on a road that rises 15º above the horizontal. What is the magnitude of the static frictional force that the ground exerts on the tires
Physics A point charge q1=15.00uC is held fixed in space. From a horizontal distance of 3.00cm, What is the acceleration of the sphere at the instant when its speed is 26.0m/s
A point source of light is located 6.6 m below the surface of a large pool of water. Find the area of the largest circle on the pool's surface through which light coming directly from the source can emerge
A beam of light in air strikes a glass slab at normal incidence. The glass slab has an index of refraction of 1.50. what percentage of the incident light intensity is transmitted
A slab of glass with an index of refraction of 1.64 is submerged in a liquid with an index of refraction of 1.27. Light in the liquid is incident on the glass. Find the angle of refraction for the angle of incidence
Find the p-value associated with the test of hypothesis
As of December 31, 2010, Walton Corporation had a current ratio of 1.84, quick ratio of 1.45, and working capital of $18,000. The company uses a perpetual inventory system and sells merchandise for more than it cost.
The player who draws a red tile first is the winner. In the first round, Thomas goes first, then Jenna, and then Maria, and none of them draws a red tile. What is the probability that Thomas will win the game on his second turn?
mrs. cleaver mixes 1.24 liters of red paint with 3 times as much blue paint to make purple paint. she pours the paint
The school cafeteria has fund that they go through 8 sandwiches for every 5 tickets they sell to the students. Today they have 490 tickets for sale. How many sandwiches do they need to make?
Use logarithms and the law of tangents to solve the triangle ABC, given that a= 21.46 ft, b= 46.28 ft, and C = 32° 28' 30"
Given the explicit solution from part (a), what is the largest possible t-interval on which the explicit solution makes sense?
How good are you with algebra and business statistics? Would you be available for entire semesters? DS
Price the European option to swap gold for silver that matures in 6 months. suppose the storage cost, as a rate, of gold is .05 and of silver is .06. What is the exchange option worth?
Two sides of an isoceles triangle each measure 10 cm, and the vertex angle measures 132 degrees, Find the length of the altitude to the base. Find the length of the base.
A rectangular swimming pool 60 ft long, 10 ft wide, and 8 ft deep is filled with water to a depth of 7 ft. Use an integral to find the work required to pump all the water out over the top. (Take as the density of water delta = 62.4 hbox{lb/ft}^3.)
How much salt is present in the tank at the end of 14 min? (Round your answer to one decimal place.)
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