06/30/20

A rubber ball dropped from a height of 40 cm rebounds on each bounce to a height which is 2/5 of its height on the previous bounce. How far will it travel before coming to rest?
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06/30/20

PL answer this question
An 8-sided fair die is rolled twice and the product of the two numbers obtained when the die is rolled two times is calculated.(a) Draw the possibility diagram of the product of the two numbers... more
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06/30/20

By using cyclindrical coordinates write a triple integral (don't evaluate) to find the volume of the solid bounded by z = 8- x^2- y^2 and z = x^2 + y^2.
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06/28/20

One More- Need Help Today- Statistics Probability
A manufacturer knows that their items have a normally distributed lifespan, with a mean of 12.5 years, and standard deviation of 2.4 years.If 3 items are picked at random, 9% of the time their mean... more
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06/27/20

Odd factoring problem
Is this possible?How would I factor x2-4x+7 if the answer must include (x+5)?Thanks for your help!
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06/27/20

if f(x)=5x+1 and g(x)=4/x. find f(g(x)) and g(f(x)).
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06/27/20

Find a formula for the inverse of the given function. f(x) = 6x + 7 5x − 8
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06/27/20

Random variable X distributes normally. 10% of the distribution is above 125, 20% is below 77. What is the mean and variance of this distribution?
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06/27/20

Determine intersections and unions of sets using interval notation.
Given the sets A and B expressed in interval notation, find A⋂B.A = (-∞, 46)⋃[84, +∞)B = [-83, 88]
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06/27/20

Stats homework please help

The number of movies that four people in a family have seen in the past month is 4,2,8, and 0. Using samples of size 3 find the mean of the sampling distribution.(a) 3.5 (b) 4.7 (c) 14 (d) 2.4The... more
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06/26/20

I need these plz
1)Explain the transformation of the graph above from the parent function, f(x)=1/x. Include your thought process.2)The force required to move an object by a lever and fulcrum varies inversely with... more
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06/26/20

calculus help needed
Find the surface area of revolution for the curve y = √3 x+ 2 revolved about the y-axis for 1 ≤ x ≤ 8Consider a rectangular swimming pool filled with mercury with surface dimension of 100 ft by 50... more
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06/26/20

adults with smartphones, 48​% use them in meetings. If 15 adult smartphone users are randomly​ selected, find the probability that fewer than 5 of them use their smartphones in meetings
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06/26/20

Question about statistics

Two cards are drawn without replacement from a standard deck of 52 playing cards. What is the probability of choosing a spade for the second card drawn, if the first card, drawn without... more
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06/26/20

Probability- Continuous Uniform Distribution Question- Please Help
The lengths of a professor's classes has a continuous uniform distribution between 50.0 min and 52.0 min. If one such class is randomly selected, find the probability that the class length is... more
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06/26/20

Poisson Distribution Question
 A commercial washing machine has non-repairable motor with a constant failure rate of 0.08 failures per year. The service organization has purchased 2 spare motors. If the design life... more
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06/25/20

Finite 3.3 Probability
 Assume that you have 6 red balls and 9 blue balls from which randomly to select two without replacement.(1) What is the probability that exactly one red ball is chosen?  (2) What is the... more
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06/25/20

Stats homework please help

Suppose the average distance of fly balls hit to the outfield (in baseball) is normallydistributed with a mean of 250 feet and a standard deviation of 50 feet. We randomly sample 49 fly balls. Let... more
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06/25/20

I want to understand Fourier series
{ x, 0<x<π}f(x)={ } {π, π<x<2π}Find the Fourier series for 2π period periodic function
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06/24/20

Find the volume of solid
Find the volume of solid which is bounded above by the plane 􏰾x+y+z=5 and below by region D={(x,y,z)􏰾􏰾z=2y, 4x2+z2 ≤4}.Hint: Try to figure out the bottom of solid. D is part of plane bounded by... more
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06/23/20

Demand: Women's Boots The rate of change of the unit price p (in dollars) of a certain brand of women's boots is given by

p'(x) = − 225x/(16 + x2)3/2 where x is the quantity demanded daily in units of a hundred. Find the demand function for these boots if the quantity demanded daily is 300 pairs (x = 3) when the unit... more
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06/23/20

Find a formula for a function f that satisfies the following conditions.
lim x→±∞ f(x) = 0,   lim x→0 f(x) = −∞,  f(3) = 0, lim x→6− f(x) = ∞,   lim x→6+ f(x) = −∞F(x)=___________
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06/23/20

Find the volume of the solid
Find the volume of the solid of revolution obtained by rotating the region bounded by the curve y=4−e^x and the line x=0 and y=0 about the line x = −3. Sketch the region and the axis of revolution... more
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06/23/20

Suppose that the useful life of a particular car battery, measured in months, decays with parameter 0.025. We are interested in the life of the battery
. Suppose that the useful life of a particular car battery, measured in months, decays with parameter 0.025. We are interested in the life of the battery.Given (a)Find the mean of the random... more
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06/23/20

Please help me with this Calculus question about Average Value of a Function(video) or nice explanation
I got the avaerage value its 6/5, however I cannot solve these questionFind c such that fave = f(c). (Enter solutions from smallest to largest. If there are any unused answer boxes, enter NONE in... more
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