Inclusive means both could possibly happen at the same time and exclusive means they couldn't. For example,you can't get a sum of less than 3 and greater than 5 at the same time so they are (mutually) exclusive. But you could have a product greater than 9 and also less than 16 (5 X 2 for example) so they are inclusive.
To get the probabilities, there are 36 total ways so 36 will be on all bottoms. Just count up the number of ways that work for wach one and put that number on top. For example, there is only one way to get a sum less than 3 but there are 26 ways to get 6 or more so 1 + 26 = 27; answer 27/36
2007-02-13 13:49:02
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answer #1
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answered by hayharbr 7
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3 - 4y + 7 = 4 - 2y. before everything, remedy the left-hand factor. 3 - 4y + 7 = 4 - 2y. 3 + 7 - 4y = 4 - 2y 10 - 4y = 4 - 2y Then, flow -4y to the ultimate hand factor and four to the left hand factor. observe: whilst shifting numbers in terms of addition and subtraction into the different factor of the equation, constantly confirm to alter its positivity / negativity. occasion, 9 - 8y = 2. once you progression -8y to the ultimate hand factor, it turns into 9 = 2 + 8y or 9 = 8y + 2. Its a uncomplicated logical rule. Now, flow -4y to the ultimate hand factor and four to the left hand factor to get, 10 - 4 = 4y - 2y. remedy the two sides yet once you're nonetheless unfamiliar, remedy one factor first. 10 - 4 = 4y-2y 6 = 4y - 2y 6 = 2y Now, to locate y, flow 2 to the different factor. How? We see that 2y is the comparable as 2 x y, amazing? right here, we are in a position to ascertain that there is multiplication happening. In multiplication, whilst shifting a quantity that's used tto multiply to the different factor, that quantity will could be divided. case in point, 3 = 2y (Now, flow 2 to the different factor. It turns into...) 3/2 = y 40 two = 6x (Now flow 6 to the different factor. It turns into...) 40 two/6 = x 8 = x the comparable difficulty with branch too. flow to the different factor, it turns into multiplication. 8/5 = 2y (Now, flow 5 to the different factor it turns into...) 8 = 2y x 5 8 = 10y. Now, u would ask, what if i take advantage of 8? properly, in effortless fractions, there are 2 numbers. the single on actual is termed the numerator mutually as the backside one is termed the denominator. As you have considered, I moved the denominator, 5 to the different factor. How approximately if we flow the numerator, 8 extremely of 5? properly, it turns into this: 8/5 = 2y 5 = 8/2y (Simplify 8 and a pair of to grow to be 4 and a million) 5 = 4/y (1y is the comparable as y) confident. The numerator does not would desire to get replaced to multiplication like the denominator. Its a uncomplicated rule. Now, back to 6 = 2y 6 = 2y. (From multiplication, it turns into branch) 6/2 = y 3 = y in case you p.c. to ascertain despite if 3 is the respond, exchange 3 into y interior the unique equation which you needed us to remedy. 3 - 4y + 7 = 4 - 2y. 3 - 4(3) + 7 = 4 - 2(3) 3 - 12 + 7 = 4 - 6 -9 + 7 = -2 -2 = -2 See? are not the two sides the comparable? meaning you're ultimate.
2016-10-02 02:42:06
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answer #2
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answered by riedel 4
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