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Earn +20 ptsQ: X is at least 2
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What is the least common multiple of 2 and x and 7x?
Least common multiple = 7x X 2 = 14x
What is the prime factorization of 180 ordered from least to greatest?
2 x 2 x 2 x 3 x 5 = 180
What is the least common denominator for 3x divided by x squared x - 2?
1
How many people would you have to have in a group so that there is a probability of at least 0.6 that at least two of them will have the same birthday?
Let x be the number of people: P(among x, at least two people have same birthday) = 2/x * 1/(x-1) >0.6 2/[(x)x-1] = 0.6 2 / 0.6> x^2 - x x^2 - x > 10/3 3x^2 - 3x - 10 > 0 x > [3+- (3^2-4*3*(-10))^(1/2)] / 2*3 x > (3 + (9+120)^(1/2)) /6 x > 2.39 Therefore x = 3
The sum of two times a number (x) and -2 is at least 8.?
i think it is if you simlify it the answer would be x+(-2)>8 your welcome aislinn
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