Math
A state lottery requires you to choose 4 cards from an ordinary deck: I heart, 1 club, 1 diamond, and 1 spade in that order from the 13 cards in each suit. If all four choices are selected by the lottery, yo win $5,000. It costs $1 to play. Find the expected payback.
university
n^2+n+1 = (n+1)^2 - n (n+1)^2 and n will always have the different parity, so the difference between them is always odd.
probability
6 male students and 3 female students sit around a round table. What is the probability that no 2 female students sit beside each other?
MATH
110% OF $8.50
Calculus
The area bounded by the curve y = 2x^2-x^3 and line y=0 is rotated around the y-axis. The volume of the resulting structure can be expressed as V = a(pi)/b, where a and b are coprime positive integers. What is the value of a + b?
GEOmetry
4455551 = 4x4x5x5x5x5x1=10000 the proof is not valid.
GEOmetry
4455551 = 4x4x5x5x5x5x1=10000 the proof is not valid.
Pre-calculus; urgent ! Please help !
I'm taking this same class you should add me on Facebook lol Symone kaepernick
math
If Mark invests $8000 at 6% simple interest rate, how much money must he invest at an 8% simple interest rate in order for the interest on each investment to be $500. Assume that the amount of time for both investments is the same.
Math
The velocity of a body A is given by v(t) = 2t^i + t 3^j. The body starts from rest at time t = 0 and position s(0) = 2^i 10^j. At what time, t, does the body cross the X axis? What is the average velocity of the body for the time interval, t = 0 and the time that it crosses t...
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