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A game is made, in the game it all depends on a fair six sided dice. The game cost 10 coins to play.?
You throw the dice 3 times. If they`re all one`s you lose all coins. If you get 2 one`s you`ll get 1 coin back, if you get 1 one´s youll get 3coins back, if you only get 2,3,4,5,6 youll get 20 coins back.
A: What would be the expected winnings/losings from each game played ?
1 réponseHomework Helpil y a 3 ansBinomial distribution. A bowl contains 4 red balls, 3 blue balls and 6 black balls(Balls are put back after each pick)?
A: What is the probability of getting a red ball and after that a black ball ?
B: What is the probability of getting 2 red balls if you randomly chose 3 balls ?
C: Picking 4 balls, make a table that shows the probabilities of getting 0,1,2,3 or 4 red balls
D: Whats the probability of getting 3 or more, blue balls ?
2 réponsesMathematicsil y a 3 ansSolve (-2x^2+3x+1)^2?
Mathematicsil y a 3 ansTwo functions are given as f(x)=x^2-3x+5 and g(x)=〖-x〗^2+6?
A: Find the area between the functions
B: Find the volume of that area rotated around the x-axis
1 réponseMathematicsil y a 3 ansA particle is moving with a velocity indicated by v(t)=-t^2+3t, t≥0 ; v[m/s] .?
A: What is the displacement from its initial point to t=4
B: What is the distance travelled in the same period of time
C: When will the displacement be at 0 again ?
1 réponseMathematicsil y a 3 ansA function is given as f(x)=x∙√(x^2+1) ; x≥0?
A:Find the Area bounded by the function, the x-axis and x=3
B:Find the Volume when the area is rotated around the x-axis
C: Find the volume of the area rotated around the y-axis (fnint command on TI84 allowed)
D: Find the volume when the area between the function the y-axis and y=3∙√10, is rotated 70 degrees around the y-axi
2 réponsesMathematicsil y a 3 ansA point p is moving along a circle with equation x^2+y^2=100 at a constant rate of 3 units/sec.?
How fast is the projection of p on the x-axis moving when p is 5 units above the x-axis
2 réponsesMathematicsil y a 4 ansA function is given as f(x)=〖2xe〗^3x?
a: Find all intersections with the x-axis
b: Find the slope function f´(x)
c: Find the tangent at x=1
d: Find the normal to the tangent at x=1
e: Find all stationary points, and state their nature(if any exists)
1 réponseHomework Helpil y a 4 ansGiven f(x)=3x∙e^x?
a: Find the derivative
b: Find the tangent at x=2
c: Find the Normal at x=2
d: Find, if any, maximum and minimums for the function
e: Find (dy^2)/(d^2 x)
4 réponsesMathematicsil y a 4 ansFind the derivatives :k(x)=(cos(x)∙(3x+1))/(2x^2 )?
2 réponsesHomework Helpil y a 4 ansFind the derivatives: j(x)=sin(x)∙(x^2-3x)?
2 réponsesHomework Helpil y a 4 ans0.05x^2.32> 4* 1.05^(x-1)?
1 réponseHomework Helpil y a 4 ansSolve: 0.05x^2.32> 4* 1.05^x-1?
2 réponsesHomework Helpil y a 4 ansLet f (x) = 8x + 3 and g(x) = 4x, for x∈ R (b) Find f(g(x))?
3 réponsesMathematicsil y a 4 ansDetermine the equation of any asymptotes?
a) f(x)=(3x-7)/(6x+3)
b) g(x)=(2x-5)/(2x^2-8)
c) h(x)=(3x^2-4x+2)/((1/2 x)^2+2x-1)
2 réponsesMathematicsil y a 4 ansDetermine the equation of any asymptotes?
a) f(x)=(3x-7)/(6x+3)
b) g(x)=(2x-5)/(2x^2-8)
c) h(x)=(3x^2-4x+2)/((1/2 x)^2+2x-1)
1 réponseHomework Helpil y a 4 ans