Calculus
Find the relative extrema, if any, of the function. Use the second derivative test, if applicable. (If an answer does not exist, enter DNE.) f(t) = 7 t + 3/t relative maximum (x, y) = relative minimum (x, y) =
Statistics
Suppose that the weight of male babies less than 2 months old is normally distributed with mean 11.5 pounds and standard deviation 2.7 pounds. A sample of 36 babies is selected. What is the probability that the average weight of the samlpe is less than 11.29 pounds?
Math
Cashew nuts sell for $21.00/kg. Brazil nuts sell for $15.00/kg. a distributed sold at total of 120kg of cashew and Brazil nuts for 2244 dollars. What mass of each type of nut was sold?
Statistics
Suppose that a sample of size 60 is drawn from a population with mean 73 and standard deviation 79. Find the value of , the standard deviation of the distribution of sample means. How do I work this on my calculator?
statistics
The distribution of weekly salaries at a large company is right skewed with a mean of $1000 and a standard deviation of $350. What is the probability that the sampling error made in estimating the mean weekly salary for all employees of the company by the mean of a random samp...
Physics
A uniform meterstick pivoted at its center has a 80.0 mass suspended at the 27.0 position. At what position should a 85.0 mass be suspended to put the system in equilibrium? What mass would have to be suspended at the 90.0 position for the system to be in equilibrium?
Physics
A rope goes over a circular pulley with a radius of 5.5 If the pulley makes 6 revolutions without the rope slipping, what length of rope passes over the pulley?
Physics
A cylinder with a diameter of 16 rolls with an angular speed of 0.055 on a level surface. If the cylinder experiences a uniform tangential acceleration of 0.020 without slipping until its angular speed is 1.0 , through how many complete revolutions does the cylinder rotate dur...
physics
If a dog whistle has a frequency of 30000 hertz. What is the wavelength of the sound emitted (Approximate speed of sound is 340 m/s)
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